Brochure

41
HEAT EXCHANGERS Brazed Plate Heat Exchangers
Quick Selection Tables
Outdoor Wood Boiler
Boiler Side: Water 180º F supply, 155º F return
House Side: Water 140º F supply, 165º F return
Heat
Boiler Side House Side
Model Exchanged Flow Pressure Drop Flow Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BP400-20LP (¾" MPT) 30,500 2.52 0.4 2.5 0.3
BP400-30LP (¾" MPT) 50,000 4.12 0.5 4.1 0.4
BP400-40LP (¾" MPT) 70,000 5.77 0.6 5.7 0.6
BP410-20LP (1" MPT) 80,000 6.60 1.9 6.5 1.6
BP410-30LP (1" MPT) 130,000 10.72 2.2 10.6 1.92
BP410-40LP (1" MPT) 179,500 14.80 2.3 14.6 2.2
BP410-50LP (1" MPT) 229,500 18.92 2.5 18.7 2.4
BP410-60LP (1" MPT) 279,000 23.00 2.8 22.8 2.6
BP410-70LP (1" MPT) 329,000 27.13 3.0 26.8 2.9
BP410-80LP (1" MPT) 378,500 31.21 3.3 30.9 3.2
BP410-90LP (1" MPT) 428,500 35.33 3.7 34.9 3.6
BP410-100LP (1" MPT) 478,000 39.41 4.0 39.0 4.0
Solar Heating
Solar Side: 45% Propylene Glycol 149° F supply, 113° F return
Storage Tank Side: Water 104° F supply, 140° F return
Heat
Solar Side Storage Tank Side
Model Exchanged Flow Pressure Drop Flow Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BP410-10 (1" MPT) 2,100 0.13 < 0.10 0.12 < 0.10
BP410-20 (1" MPT) 6,100 0.38 < 0.10 0.34 < 0.10
BP410-30 (1" MPT) 10,100 0.62 < 0.10 0.57 < 0.10
BP410-40 (1" MPT) 14,100 0.87 < 0.10 0.79 < 0.10
BP415-20 (1" MPT) 24,500 1.51 0.24 1.38 0.13
BP415-24 (1" MPT) 30,800 1.90 0.25 1.73 0.15
BP415-30 (1" MPT) 40,100 2.47 0.27 2.25 0.16
BP415-34 (1" MPT) 46,500 2.86 0.28 2.61 0.17
BP415-40 (1" MPT) 56,100 3.45 0.29 3.15 0.18
BP415-50 (1" MPT) 72,000 4.43 0.30 4.04 0.20
BP415-60 (1" MPT) 87,900 5.41 0.32 4.94 0.21
Swimming Pool Heating
Boiler Side: Water 180º F supply, 130º F return
Pool Side: Water 70º F supply, 107º F return
Pool Heat
Boiler Side Pool Side
Model
3
Size Exchanged Flow Pressure Drop Flow
2
Pressure Drop
Gallons
1
BTU/Hr
GPM PSI GPM PSI
BP400-10 (¾" MPT) 2,000 33,300 1.37 0.5 1.8 0.6
BP400-10 (¾" MPT) 6,000 99,900 4.10 4.1 5.4 5.0
BP400-20 (¾" MPT) 8,000 133,200 5.50 1.7 7.3 2.5
BP400-30 (¾" MPT) 15,000 250,234 10.00 2.7 14.0 4.5
BP412-20 (1" MPT) 20,000 333,645 13.00 2.5 18.0 3.4
BP412-20 (1" MPT) 30,000 500,467 20.70 5.6 27.2 7.7
BP412-30 (1" MPT) 40,000 667,290 27.00 3.9 36.0 6.9
BP424-20 (2" MPT) 60,000 1,000,936 40.00 2.3 54.0 3.6
BP424-30 (2" MPT) 80,000 1,334,581 53.00 1.9 72.0 3.1
BP424-30 (2" MPT) 100,000 1,668,226 67.00 2.8 90.0 4.7
BP424-40 (2" MPT) 120,000 2,001,871 82.50 2.5 108.0 4.2
BP424-50 (2" MPT) 150,000 2,502,000 103.20 2.7 135.6 4.7
Larger models are available upon request.
1) Provides approx. 2º F per hour heating with 180º F boiler to achieve 80º F pool temperature.
2) Pool water flow rate usually requires flow by pass from main pool circulation.
3) Chlorinated pool water can be corrosive to SS316L and Copper. Proper control of chlorine levels is
required or alternate materials of construction should be considered.
Estimate how much heat you need:
Flow x Temperature Rise x 500 = Heat load
Example: (20 GPM) (20º F) (500) = 200,000 BTU/Hr
For a Radiant Heating Application, the choice would
be a BP400-40.
Quick Selection Tables
Radiant Floor Heating
Boiler Side: Water 180º F supply, 160º F return
Radiant Floor Side: Water 100º F supply, 120º F return
Heat
Boiler Side Radiant Floor Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 30,000 3.1 2.4 3.0 1.6 NRF-25 ¾"
BP400-10 (¾" MPT) 50,000 5.2 6.1 5.0 4.2 NRF-36 1"
BP400-20 (¾" MPT) 100,000 10.3 5.2 10.1 4.4 NRF-36 1¼"
BP400-30 (¾" MPT) 150,000 15.5 5.3 15.2 4.9 NRF-36 1½"
BP400-40 (¾" MPT) 200,000 20.6 5.8 20.2 5.5 NRF-36 1½"
BP411-20 (1" MPT) 250,000 25.8 3.3 25.2 3.0 PL-36 2"
BP411-20 (1" MPT) 350,000 36.1 6.3 35.3 5.6 PL-55 2"
BP411-30 (1" MPT) 450,000 46.4 6.1 45.4 5.8 607 2"
BP424-20 (2" MPT) 600,000 61.8 4.8 60.6 4.2 609 2½"
BP424-30 (2" MPT) 900,000 92.7 4.8 90.9 4.5 611 3"
BP424-40 (2" MPT) 1,200,000 123.6 5.1 121.2 5.0 625 3"
BP424-50 (2" MPT) 1,350,000 139.1 4.7 136.3 4.6 619 3"
Larger models are available upon request.
† Assumptions: Longest radiant loop is 200 ft. PEX.
†† Pipe size shown isn’t the connection size of the heat exchanger.
Snow Melt Applications
Boiler Side: Water 180º F supply, 160º F return
Snow Side: Water 40% P. G. 100º F supply, 130º F return
Heat
Boiler Side Snow Melt Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 30,000 3.1 2.4 2.1 0.9 NRF-25 ¾"
BP400-10 (¾" MPT) 45,000 4.6 5.1 3.2 2.1 NRF-35 ¾"
BP400-14 (¾" MPT) 60,000 6.2 4.2 4.3 1.9 NRF-25 1"
BP400-20 (¾" MPT) 100,000 10.3 5.4 7.1 2.7 NRF-36 1"
BP400-40 (¾" MPT) 175,000 18.0 5.2 12.5 2.8 NRF-36 1½"
BP412-30 (1" MPT) 250,000 25.8 4.1 17.9 2.1 PL-36 1½"
BP412-30 (1" MPT) 300,000 30.9 5.8 21.4 2.9 PL-55 2"
BP412-50 (1" MPT) 450,000 46.4 6.2 32.1 3.3 613 2"
BP424-20 (2" MPT) 600,000 61.8 4.8 42.9 2.8 609 2"
BP424-30 (2" MPT) 900,000 92.7 4.8 64.3 3.0 614 2½"
BP424-40 (2" MPT) 1,200,000 123.6 5.1 85.7 3.2 625 3"
BP424-50 (2" MPT) 1,350,000 139.1 4.7 96.4 2.9 625 3"
Larger models are available upon request.
† Assumptions: Longest radiant loop is 250 ft. PEX.
†† Pipe size shown isn't the connection size of the heat exchanger.
Domestic Water Heating
Boiler Side: Water 180º F supply, 130º F return
Domestic Water Side: Water 50º F supply, 140º F return
Heat
Boiler Side Domestic Water Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 60,000 2.5 1.6 1.3 0.3 NBF-9U
5
/
8
"
BP400-20 (¾" MPT) 150,000 6.2 2.1 3.3 0.6 NBF-9U ¾"
BP400-30 (¾" MPT) 225,000 9.3 2.2 5.0 0.7 NBF-9U 1"
BP400-40 (¾" MPT) 350,000 14.4 3.4 7.8 1.0 NBF-12 1¼"
BP410-30 (1" MPT) 450,000 18.6 6.2 10.0 1.8 NBF-25 1¼"
BP410-40 (1" MPT) 600,000 24.8 6.2 13.3 2.0 NBF-25 1½"
BP410-50 (1" MPT) 800,000 33.0 6.9 17.8 2.4 NBF-25 1½"
BP410-60 (1" MPT) 900,000 37.1 6.9 20.0 2.2 NBF-25 2"
BP410-80 (1" MPT) 1,100,000 45.4 6.8 24.4 2.2 NBF-36 2"
BP423-30 (2" MPT) 1,500,000 61.9 4.6 33.3 1.4 NBF-45 2"
BP423-40 (2" MPT) 2,000,000 82.5 4.6 44.4 1.4 PL-45B 2½"
BP423-50 (2" MPT) 2,500,000 103.1 4.8 55.5 1.5 PL-75B 2½"
Larger models are available upon request. † Assumptions: 200 ft. TEL of copper pipe with (6) 90 degree
elbows. †† Pipe size shown is not the connection size of the heat exchanger.
Larger models are available upon request.
Normal Panel Capacity = 190 BTU/Hr•Ft
2
Larger models are available upon request.
Domestic Water Heating - Double Wall
Boiler Side: Water 180º F supply, 130º F return
Domestic Water Side: Water 50º F supply, 140º F return
Heat
Boiler Side
Domestic Water Side
Model
Exchanged Flow Pressure Drop
Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BPDW410-20 (1" MPT)
60,000 2.5 0.2 1.3 0.1 NBF-9U 5/8”
150,000 6.2 0.4 3.3 0.1 NBF-9U 3/4”
225,000 9.3 3.8 5.0 0.9 NBF-9U 1”
350,000 14.4 4.5 7.8 1.1 NBF-12 1-1/4”
450,000 18.6 5.4 10.0 1.4 NBF-25 1-1/4”
600,000 24.8 4.6 13.3 1.2 NBF-25 1-1/2”
800,000 33.0 5.1 17.8 1.4 NBF-25 1-1/2”
900,000 37.1 4.8 20.0 1.8 NBF-25 2”
1,100,000 45.4 6.3 24.4 3.1 NBF-36 2”
1,500,000
†††
61.9 4.5 33.3 1.3 NBF-45 2”
2,000,000
†††
82.5 5.9 44.4 1.7 NBF-45B 2-1/2”
†
Assumptions: 20 ft. of copper pipe with (6) 90 degree elbows.
††
Pipe size shown isn't the connection size of the heat exchanger.
†††
Two units are required in parallel.
BPDW410-34 (1" MPT)
BPDW415-24 (1" MPT)
BPDW415-34 (1" MPT)
BPDW415-40 (1" MPT)
BPDW415-60 (1" MPT)
BPDW415-80 (1" MPT)
BPDW415-100 (1" MPT)
BPDW415-110 (1" MPT)
(2)BPDW415-80 (1" MPT)
(2)BPDW415-100 (1" MPT)
B&G Pump
Selection
†
Pipe
Size
††
Flow
Outdoor Wood Boiler
Boiler Side: Water 180º F supply, 155º F return
House Side: Water 140º F supply, 165º F return
Heat
Boiler Side House Side
Model Exchanged Flow Pressure Drop Flow Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BP400-20LP (¾" MPT) 30,500 2.52 0.4 2.5 0.3
BP400-30LP (¾" MPT) 50,000 4.12 0.5 4.1 0.4
BP400-40LP (¾" MPT) 70,000 5.77 0.6 5.7 0.6
BP410-20LP (1" MPT) 80,000 6.60 1.9 6.5 1.6
BP410-30LP (1" MPT) 130,000 10.72 2.2 10.6 1.92
BP410-40LP (1" MPT) 179,500 14.80 2.3 14.6 2.2
BP410-50LP (1" MPT) 229,500 18.92 2.5 18.7 2.4
BP410-60LP (1" MPT) 279,000 23.00 2.8 22.8 2.6
BP410-70LP (1" MPT) 329,000 27.13 3.0 26.8 2.9
BP410-80LP (1" MPT) 378,500 31.21 3.3 30.9 3.2
BP410-90LP (1" MPT) 428,500 35.33 3.7 34.9 3.6
BP410-100LP (1" MPT) 478,000 39.41 4.0 39.0 4.0
Solar Heating
Solar Side: 45% Propylene Glycol 149° F supply, 113° F return
Storage Tank Side: Water 104° F supply, 140° F return
Heat
Solar Side Storage Tank Side
Model Exchanged Flow Pressure Drop Flow Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BP410-10 (1" MPT) 2,100 0.13 < 0.10 0.12 < 0.10
BP410-20 (1" MPT) 6,100 0.38 < 0.10 0.34 < 0.10
BP410-30 (1" MPT) 10,100 0.62 < 0.10 0.57 < 0.10
BP410-40 (1" MPT) 14,100 0.87 < 0.10 0.79 < 0.10
BP415-20 (1" MPT) 24,500 1.51 0.24 1.38 0.13
BP415-24 (1" MPT) 30,800 1.90 0.25 1.73 0.15
BP415-30 (1" MPT) 40,100 2.47 0.27 2.25 0.16
BP415-34 (1" MPT) 46,500 2.86 0.28 2.61 0.17
BP415-40 (1" MPT) 56,100 3.45 0.29 3.15 0.18
BP415-50 (1" MPT) 72,000 4.43 0.30 4.04 0.20
BP415-60 (1" MPT) 87,900 5.41 0.32 4.94 0.21
Swimming Pool Heating
Boiler Side: Water 180º F supply, 130º F return
Pool Side: Water 70º F supply, 107º F return
Pool Heat
Boiler Side Pool Side
Model
3
Size Exchanged Flow Pressure Drop Flow
2
Pressure Drop
Gallons
1
BTU/Hr
GPM PSI GPM PSI
BP400-10 (¾" MPT) 2,000 33,300 1.37 0.5 1.8 0.6
BP400-10 (¾" MPT) 6,000 99,900 4.10 4.1 5.4 5.0
BP400-20 (¾" MPT) 8,000 133,200 5.50 1.7 7.3 2.5
BP400-30 (¾" MPT) 15,000 250,234 10.00 2.7 14.0 4.5
BP412-20 (1" MPT) 20,000 333,645 13.00 2.5 18.0 3.4
BP412-20 (1" MPT) 30,000 500,467 20.70 5.6 27.2 7.7
BP412-30 (1" MPT) 40,000 667,290 27.00 3.9 36.0 6.9
BP424-20 (2" MPT) 60,000 1,000,936 40.00 2.3 54.0 3.6
BP424-30 (2" MPT) 80,000 1,334,581 53.00 1.9 72.0 3.1
BP424-30 (2" MPT) 100,000 1,668,226 67.00 2.8 90.0 4.7
BP424-40 (2" MPT) 120,000 2,001,871 82.50 2.5 108.0 4.2
BP424-50 (2" MPT) 150,000 2,502,000 103.20 2.7 135.6 4.7
Larger models are available upon request.
1) Provides approx. 2º F per hour heating with 180º F boiler to achieve 80º F pool temperature.
2) Pool water flow rate usually requires flow by pass from main pool circulation.
3) Chlorinated pool water can be corrosive to SS316L and Copper. Proper control of chlorine levels is
required or alternate materials of construction should be considered.
Estimate how much heat you need:
Flow x Temperature Rise x 500 = Heat load
Example: (20 GPM) (20º F) (500) = 200,000 BTU/Hr
For a Radiant Heating Application, the choice would
be a BP400-40.
Quick Selection Tables
Radiant Floor Heating
Boiler Side: Water 180º F supply, 160º F return
Radiant Floor Side: Water 100º F supply, 120º F return
Heat
Boiler Side Radiant Floor Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 30,000 3.1 2.4 3.0 1.6 NRF-25 ¾"
BP400-10 (¾" MPT) 50,000 5.2 6.1 5.0 4.2 NRF-36 1"
BP400-20 (¾" MPT) 100,000 10.3 5.2 10.1 4.4 NRF-36 1¼"
BP400-30 (¾" MPT) 150,000 15.5 5.3 15.2 4.9 NRF-36 1½"
BP400-40 (¾" MPT) 200,000 20.6 5.8 20.2 5.5 NRF-36 1½"
BP411-20 (1" MPT) 250,000 25.8 3.3 25.2 3.0 PL-36 2"
BP411-20 (1" MPT) 350,000 36.1 6.3 35.3 5.6 PL-55 2"
BP411-30 (1" MPT) 450,000 46.4 6.1 45.4 5.8 607 2"
BP424-20 (2" MPT) 600,000 61.8 4.8 60.6 4.2 609 2½
"
BP424-30 (2" MPT) 900,000 92.7 4.8 90.9 4.5 611 3"
BP424-40 (2" MPT) 1,200,000 123.6 5.1 121.2 5.0 625 3"
BP424-50 (2" MPT) 1,350,000 139.1 4.7 136.3 4.6 619 3"
Larger models are available upon request.
† Assumptions: Longest radiant loop is 200 ft. PEX.
†† Pipe size shown isn’t the connection size of the heat exchanger.
Snow Melt Applications
Boiler Side: Water 180º F supply, 160º F return
Snow Side: Water 40% P. G. 100º F supply, 130º F return
Heat
Boiler Side Snow Melt Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 30,000 3.1 2.4 2.1 0.9 NRF-25 ¾"
BP400-10 (¾" MPT) 45,000 4.6 5.1 3.2 2.1 NRF-35 ¾"
BP400-14 (¾" MPT) 60,000 6.2 4.2 4.3 1.9 NRF-25 1"
BP400-20 (¾" MPT) 100,000 10.3 5.4 7.1 2.7 NRF-36 1"
BP400-40 (¾" MPT) 175,000 18.0 5.2 12.5 2.8 NRF-36 1½"
BP412-30 (1" MPT) 250,000 25.8 4.1 17.9 2.1 PL-36 1½"
BP412-30 (1" MPT) 300,000 30.9 5.8 21.4 2.9 PL-55 2"
BP412-50 (1" MPT) 450,000 46.4 6.2 32.1 3.3 613 2"
BP424-20 (2" MPT) 600,000 61.8 4.8 42.9 2.8 609 2"
BP424-30 (2" MPT) 900,000 92.7 4.8 64.3 3.0 614 2½"
BP424-40 (2" MPT) 1,200,000 123.6 5.1 85.7 3.2 625 3"
BP424-50 (2" MPT) 1,350,000 139.1 4.7 96.4 2.9 625 3"
Larger models are available upon request.
† Assumptions: Longest radiant loop is 250 ft. PEX.
†† Pipe size shown isn't the connection size of the heat exchanger.
Domestic Water Heating
Boiler Side: Water 180º F supply, 130º F return
Domestic Water Side: Water 50º F supply, 140º F return
Heat
Boiler Side Domestic Water Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 60,000 2.5 1.6 1.3 0.3 NBF-9U
5
/
8
"
BP400-20 (¾" MPT) 150,000 6.2 2.1 3.3 0.6 NBF-9U ¾"
BP400-30 (¾" MPT) 225,000 9.3 2.2 5.0 0.7 NBF-9U 1"
BP400-40 (¾" MPT) 350,000 14.4 3.4 7.8 1.0 NBF-12 1¼"
BP410-30 (1" MPT) 450,000 18.6 6.2 10.0 1.8 NBF-25 1¼"
BP410-40 (1" MPT) 600,000 24.8 6.2 13.3 2.0 NBF-25 1½"
BP410-50 (1" MPT) 800,000 33.0 6.9 17.8 2.4 NBF-25 1½"
BP410-60 (1" MPT) 900,000 37.1 6.9 20.0 2.2 NB
F-25 2"
BP410-80 (1" MPT) 1,100,000 45.4 6.8 24.4 2.2 NBF-36 2"
BP423-30 (2" MPT) 1,500,000 61.9 4.6 33.3 1.4 NBF-45 2"
BP423-40 (2" MPT) 2,000,000 82.5 4.6 44.4 1.4 PL-45B 2½"
BP423-50 (2" MPT) 2,500,000 103.1 4.8 55.5 1.5 PL-75B 2½"
Larger models are available upon request. † Assumptions: 200 ft. TEL of copper pipe with (6) 90 degree
elbows. †† Pipe size shown is not the connection size of the heat exchanger.
Larger models are available upon request.
Normal Panel Capacity = 190 BTU/Hr•Ft
2
Larger models are available upon request.
Domestic Water Heating - Double Wall
Boiler Side: Water 180º F supply, 130º F return
Domestic Water Side: Water 50º F supply, 140º F return
Heat
Boiler Side
Domestic Water Side
Model
Exchanged Flow Pressure Drop
Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BPDW410-20 (1" MPT)
60,000 2.5 0.2 1.3 0.1 NBF-9U 5/8”
150,000 6.2 0.4 3.3 0.1 NBF-9U 3/4”
225,000 9.3 3.8 5.0 0.9 NBF-9U 1”
350,000 14.4 4.5 7.8 1.1 NBF-12 1-1/4”
450,000 18.6 5.4 10.0 1.4 NBF-25 1-1/4”
600,000 24.8 4.6 13.3 1.2 NBF-25 1-1/2”
800,000 33.0 5.1 17.8 1.4 NBF-25 1-1/2”
900,000 37.1 4.8 20.0 1.8 NBF-25 2”
1,100,000 45.4 6.3 24.4 3.1 NBF-36 2”
1,500,000
†††
61.9 4.5 33.3 1.3 NBF-45 2”
2,000,000
†††
82.5 5.9 44.4 1.7 NBF-45B 2-1/2”
†
Assumptions: 20 ft. of copper pipe with (6) 90 degree elbows.
††
Pipe size shown isn't the connection size of the heat exchanger.
†††
Two units are required in parallel.
BPDW410-34 (1" MPT)
BPDW415-24 (1" MPT)
BPDW415-34 (1" MPT)
BPDW415-40 (1" MPT)
BPDW415-60 (1" MPT)
BPDW415-80 (1" MPT)
BPDW415-100 (1" MPT)
BPDW415-110 (1" MPT)
(2)BPDW415-80 (1" MPT)
(2)BPDW415-100 (1" MPT)
B&G Pump
Selection
†
Pipe
Size
††
Flow
Outdoor Wood Boiler
Boiler Side: Water 180º F supply, 155º F return
House Side: Water 140º F supply, 165º F return
Heat
Boiler Side House Side
Model Exchanged Flow Pressure Drop Flow Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BP400-20LP (¾" MPT) 30,500 2.52 0.4 2.5 0.3
BP400-30LP (¾" MPT) 50,000 4.12 0.5 4.1 0.4
BP400-40LP (¾" MPT) 70,000 5.77 0.6 5.7 0.6
BP410-20LP (1" MPT) 80,000 6.60 1.9 6.5 1.6
BP410-30LP (1" MPT) 130,000 10.72 2.2 10.6 1.92
BP410-40LP (1" MPT) 179,500 14.80 2.3 14.6 2.2
BP410-50LP (1" MPT) 229,500 18.92 2.5 18.7 2.4
BP410-60LP (1" MPT) 279,000 23.00 2.8 22.8 2.6
BP410-70LP (1" MPT) 329,000 27.13 3.0 26.8 2.9
BP410-80LP (1" MPT) 378,500 31.21 3.3 30.9 3.2
BP410-90LP (1" MPT) 428,500 35.33 3.7 34.9 3.6
BP410-100LP (1" MPT) 478,000 39.41 4.0 39.0 4.0
Solar Heating
Solar Side: 45% Propylene Glycol 149° F supply, 113° F return
Storage Tank Side: Water 104° F supply, 140° F return
Heat
Solar Side Storage Tank Side
Model Exchanged Flow Pressure Drop Flow Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BP410-10 (1" MPT) 2,100 0.13 < 0.10 0.12 < 0.10
BP410-20 (1" MPT) 6,100 0.38 < 0.10 0.34 < 0.10
BP410-30 (1" MPT) 10,100 0.62 < 0.10 0.57 < 0.10
BP410-40 (1" MPT) 14,100 0.87 < 0.10 0.79 < 0.10
BP415-20 (1" MPT) 24,500 1.51 0.24 1.38 0.13
BP415-24 (1" MPT) 30,800 1.90 0.25 1.73 0.15
BP415-30 (1" MPT) 40,100 2.47 0.27 2.25 0.16
BP415-34 (1" MPT) 46,500 2.86 0.28 2.61 0.17
BP415-40 (1" MPT) 56,100 3.45 0.29 3.15 0.18
BP415-50 (1" MPT) 72,000 4.43 0.30 4.04 0.20
BP415-60 (1" MPT) 87,900 5.41 0.32 4.94 0.21
Swimming Pool Heating
Boiler Side: Water 180º F supply, 130º F return
Pool Side: Water 70º F supply, 107º F return
Pool Heat
Boiler Side Pool Side
Model
3
Size Exchanged Flow Pressure Drop Flow
2
Pressure Drop
Gallons
1
BTU/Hr
GPM PSI GPM PSI
BP400-10 (¾" MPT) 2,000 33,300 1.37 0.5 1.8 0.6
BP400-10 (¾" MPT) 6,000 99,900 4.10 4.1 5.4 5.0
BP400-20 (¾" MPT) 8,000 133,200 5.50 1.7 7.3 2.5
BP400-30 (¾" MPT) 15,000 250,234 10.00 2.7 14.0 4.5
BP412-20 (1" MPT) 20,000 333,645 13.00 2.5 18.0 3.4
BP412-20 (1" MPT) 30,000 500,467 20.70 5.6 27.2 7.7
BP412-30 (1" MPT) 40,000 667,290 27.00 3.9 36.0 6.9
BP424-20 (2" MPT) 60,000 1,000,936 40.00 2.3 54.0 3.6
BP424-30 (2" MPT) 80,000 1,334,581 53.00 1.9 72.0 3.1
BP424-30 (2" MPT) 100,000 1,668,226 67.00 2.8 90.0 4.7
BP424-40 (2" MPT) 120,000 2,001,871 82.50 2.5 108.0 4.2
BP424-50 (2" MPT) 150,000 2,502,000 103.20 2.7 135.6 4.7
Larger models are available upon request.
1) Provides approx. 2º F per hour heating with 180º F boiler to achieve 80º F pool temperature.
2) Pool water flow rate usually requires flow by pass from main pool circulation.
3) Chlorinated pool water can be corrosive to SS316L and Copper. Proper control of chlorine levels is
required or alternate materials of construction should be considered.
Estimate how much heat you need:
Flow x Temperature Rise x 500 = Heat load
Example: (20 GPM) (20º F) (500) = 200,000 BTU/Hr
For a Radiant Heating Application, the choice would
be a BP400-40.
Quick Selection Tables
Radiant Floor Heating
Boiler Side: Water 180º F supply, 160º F return
Radiant Floor Side: Water 100º F supply, 120º F return
Heat
Boiler Side Radiant Floor Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 30,000 3.1 2.4 3.0 1.6 NRF-25 ¾"
BP400-10 (¾" MPT) 50,000 5.2 6.1 5.0 4.2 NRF-36 1"
BP400-20 (¾" MPT) 100,000 10.3 5.2 10.1 4.4 NRF-36 1¼"
BP400-30 (¾" MPT) 150,000 15.5 5.3 15.2 4.9 NRF-36 1½"
BP400-40 (¾" MPT) 200,000 20.6 5.8 20.2 5.5 NRF-36 1½"
BP411-20 (1" MPT) 250,000 25.8 3.3 25.2 3.0 PL-36 2"
BP411-20 (1" MPT) 350,000 36.1 6.3 35.3 5.6 PL-55 2"
BP411-30 (1" MPT) 450,000 46.4 6.1 45.4 5.8 607 2"
BP424-20 (2" MPT) 600,000 61.8 4.8 60.6 4.2 609 2½"
BP424-30 (2" MPT) 900,000 92.7 4.8 90.9 4.5 611 3"
BP424-40 (2" MPT) 1,200,000 123.6 5.1 121.2 5.0 625 3"
BP424-50 (2" MPT) 1,350,000 139.1 4.7 136.3 4.6 619 3"
Larger models are available upon request.
† Assumptions: Longest radiant loop is 200 ft. PEX.
†† Pipe size shown isn’t the connection size of the heat exchanger.
Snow Melt Applications
Boiler Side: Water 180º F supply, 160º F return
Snow Side: Water 40% P. G. 100º F supply, 130º F return
Heat
Boiler Side Snow Melt Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 30,000 3.1 2.4 2.1 0.9 NRF-25 ¾"
BP400-10 (¾" MPT) 45,000 4.6 5.1 3.2 2.1 NRF-35 ¾"
BP400-14 (¾" MPT) 60,000 6.2 4.2 4.3 1.9 NRF-25 1"
BP400-20 (¾" MPT) 100,000 10.3 5.4 7.1 2.7 NRF-36 1"
BP400-40 (¾" MPT) 175,000 18.0 5.2 12.5 2.8 NRF-36 1½"
BP412-30 (1" MPT) 250,000 25.8 4.1 17.9 2.1 PL-36 1½"
BP412-30 (1" MPT) 300,000 30.9 5.8 21.4 2.9 PL-55 2"
BP412-50 (1" MPT) 450,000 46.4 6.2 32.1 3.3 613 2"
BP424-20 (2" MPT) 600,000 61.8 4.8 42.9 2.8 609 2"
BP424-30 (2" MPT) 900,000 92.7 4.8 64.3 3.0 614 2½"
BP424-40 (2" MPT) 1,200,000 123.6 5.1 85.7 3.2 625 3"
BP424-50 (2" MPT) 1,350,000 139.1 4.7 96.4 2.9 625 3"
Larger models are available upon request.
† Assumptions: Longest radiant loop is 250 ft. PEX.
†† Pipe size shown isn't the connection size of the heat exchanger.
Domestic Water Heating
Boiler Side: Water 180º F supply, 130º F return
Domestic Water Side: Water 50º F supply, 140º F return
Heat
Boiler Side Domestic Water Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 60,000 2.5 1.6 1.3 0.3 NBF-9U
5
/
8
"
BP400-20 (¾" MPT) 150,000 6.2 2.1 3.3 0.6 NBF-9U ¾"
BP400-30 (¾" MPT) 225,000 9.3 2.2 5.0 0.7 NBF-9U 1"
BP400-40 (¾" MPT) 350,000 14.4 3.4 7.8 1.0 NBF-12 1¼"
BP410-30 (1" MPT) 450,000 18.6 6.2 10.0 1.8 NBF-25 1¼"
BP410-40 (1" MPT) 600,000 24.8 6.2 13.3 2.0 NBF-25 1½"
BP410-50 (1" MPT) 800,000 33.0 6.9 17.8 2.4 NBF-25 1½"
BP410-60 (1" MPT) 900,000 37.1 6.9 20.0 2.2 NBF-25 2"
BP410-80 (1" MPT) 1,100,000 45.4 6.8 24.4 2.2 NBF-36 2"
BP423-30 (2" MPT) 1,500,000 61.9 4.6 33.3 1.4 NBF-45 2"
BP423-40 (2" MPT) 2,000,000 82.5 4.6 44.4 1.4 PL-45B 2½"
BP423-50 (2" MPT) 2,500,000 103.1 4.8 55.5 1.5 PL-75B 2½"
Larger models are available upon request. † Assumptions: 200 ft. TEL of copper pipe with (6) 90 degree
elbows. †† Pipe size shown is not the connection size of the heat exchanger.
Larger models are available upon request.
Normal Panel Capacity = 190 BTU/Hr•Ft
2
Larger models are available upon request.
Domestic Water Heating - Double Wall
Boiler Side: Water 180º F supply, 130º F return
Domestic Water Side: Water 50º F supply, 140º F return
Heat
Boiler Side
Domestic Water Side
Model
Exchanged Flow Pressure Drop
Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BPDW410-20 (1" MPT)
60,000 2.5 0.2 1.3 0.1 NBF-9U 5/8”
150,000 6.2 0.4 3.3 0.1 NBF-9U 3/4”
225,000 9.3 3.8 5.0 0.9 NBF-9U 1”
350,000 14.4 4.5 7.8 1.1 NBF-12 1-1/4”
450,000 18.6 5.4 10.0 1.4 NBF-25 1-1/4”
600,000 24.8 4.6 13.3 1.2 NBF-25 1-1/2”
800,000 33.0 5.1 17.8 1.4 NBF-25 1-1/2”
900,000 37.1 4.8 20.0 1.8 NBF-25 2”
1,100,000 45.4 6.3 24.4 3.1 NBF-36 2”
1,500,000
†††
61.9 4.5 33.3 1.3 NBF-45 2”
2,000,000
†††
82.5 5.9 44.4 1.7 NBF-45B 2-1/2”
†
Assumptions: 20 ft. of copper pipe with (6) 90 degree elbows.
††
Pipe size shown isn't the connection size of the heat exchanger.
†††
Two units are required in parallel.
BPDW410-34 (1" MPT)
BPDW415-24 (1" MPT)
BPDW415-34 (1" MPT)
BPDW415-40 (1" MPT)
BPDW415-60 (1" MPT)
BPDW415-80 (1" MPT)
BPDW415-100 (1" MPT)
BPDW415-110 (1" MPT)
(2)BPDW415-80 (1" MPT)
(2)BPDW415-100 (1" MPT)
B&G Pump
Selection
†
Pipe
Size
††
Flow
Outdoor Wood Boiler
Boiler Side: Water 180º F supply, 155º F return
House Side: Water 140º F supply, 165º F return
Heat
Boiler Side House Side
Model Exchanged Flow Pressure Drop Flow Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BP400-20LP (¾" MPT) 30,500 2.52 0.4 2.5 0.3
BP400-30LP (¾" MPT) 50,000 4.12 0.5 4.1 0.4
BP400-40LP (¾" MPT) 70,000 5.77 0.6 5.7 0.6
BP410-20LP (1" MPT) 80,000 6.60 1.9 6.5 1.6
BP410-30LP (1" MPT) 130,000 10.72 2.2 10.6 1.92
BP410-40LP (1" MPT) 179,500 14.80 2.3 14.6 2.2
BP410-50LP (1" MPT) 229,500 18.92 2.5 18.7 2.4
BP410-60LP (1" MPT) 279,000 23.00 2.8 22.8 2.6
BP410-70LP (1" MPT) 329,000 27.13 3.0 26.8 2.9
BP410-80LP (1" MPT) 378,500 31.21 3.3 30.9 3.2
BP410-90LP (1" MPT) 428,500 35.33 3.7 34.9 3.6
BP410-100LP (1" MPT) 478,000 39.41 4.0 39.0 4.0
Solar Heating
Solar Side: 45% Propylene Glycol 149° F supply, 113° F return
Storage Tank Side: Water 104° F supply, 140° F return
Heat
Solar Side Storage Tank Side
Model Exchanged Flow Pressure Drop Flow Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BP410-10 (1" MPT) 2,100 0.13 < 0.10 0.12 < 0.10
BP410-20 (1" MPT) 6,100 0.38 < 0.10 0.34 < 0.10
BP410-30 (1" MPT) 10,100 0.62 < 0.10 0.57 < 0.10
BP410-40 (1" MPT) 14,100 0.87 < 0.10 0.79 < 0.10
BP415-20 (1" MPT) 24,500 1.51 0.24 1.38 0.13
BP415-24 (1" MPT) 30,800 1.90 0.25 1.73 0.15
BP415-30 (1" MPT) 40,100 2.47 0.27 2.25 0.16
BP415-34 (1" MPT) 46,500 2.86 0.28 2.61 0.17
BP415-40 (1" MPT) 56,100 3.45 0.29 3.15 0.18
BP415-50 (1" MPT) 72,000 4.43 0.30 4.04 0.20
BP415-60 (1" MPT) 87,900 5.41 0.32 4.94 0.21
Swimming Pool Heating
Boiler Side: Water 180º F supply, 130º F return
Pool Side: Water 70º F supply, 107º F return
Pool Heat
Boiler Side Pool Side
Model
3
Size Exchanged Flow Pressure Drop Flow
2
Pressure Drop
Gallons
1
BTU/Hr
GPM PSI GPM PSI
BP400-10 (¾" MPT) 2,000 33,300 1.37 0.5 1.8 0.6
BP400-10 (¾" MPT) 6,000 99,900 4.10 4.1 5.4 5.0
BP400-20 (¾" MPT) 8,000 133,200 5.50 1.7 7.3 2.5
BP400-30 (¾" MPT) 15,000 250,234 10.00 2.7 14.0 4.5
BP412-20 (1" MPT) 20,000 333,645 13.00 2.5 18.0 3.4
BP412-20 (1" MPT) 30,000 500,467 20.70 5.6 27.2 7.7
BP412-30 (1" MPT) 40,000 667,290 27.00 3.9 36.0 6.9
BP424-20 (2" MPT) 60,000 1,000,936 40.00 2.3 54.0 3.6
BP424-30 (2" MPT) 80,000 1,334,581 53.00 1.9 72.0 3.1
BP424-30 (2" MPT) 100,000 1,668,226 67.00 2.8 90.0 4.7
BP424-40 (2" MPT) 120,000 2,001,871 82.50 2.5 108.0 4.2
BP424-50 (2" MPT) 150,000 2,502,000 103.20 2.7 135.6 4.7
Larger models are available upon request.
1) Provides approx. 2º F per hour heating with 180º F boiler to achieve 80º F pool temperature.
2) Pool water flow rate usually requires flow by pass from main pool circulation.
3) Chlorinated pool water can be corrosive to SS316L and Copper. Proper control of chlorine levels is
required or alternate materials of construction should be considered.
Estimate how much heat you need:
Flow x Temperature Rise x 500 = Heat load
Example: (20 GPM) (20º F) (500) = 200,000 BTU/Hr
For a Radiant Heating Application, the choice would
be a BP400-40.
Quick Selection Tables
Radiant Floor Heating
Boiler Side: Water 180º F supply, 160º F return
Radiant Floor Side: Water 100º F supply, 120º F return
Heat
Boiler Side Radiant Floor Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 30,000 3.1 2.4 3.0 1.6 NRF-25 ¾"
BP400-10 (¾" MPT) 50,000 5.2 6.1 5.0 4.2 NRF-36 1"
BP400-20 (¾" MPT) 100,000 10.3 5.2 10.1 4.4 NRF-36 1¼"
BP400-30 (¾" MPT) 150,000 15.5 5.3 15.2 4.9 NRF-36 1½"
BP400-40 (¾" MPT) 200,000 20.6 5.8 20.2 5.5 NRF-36 1½"
BP411-20 (1" MPT) 250,000 25.8 3.3 25.2 3.0 PL-36 2"
BP411-20 (1" MPT) 350,000 36.1 6.3 35.3 5.6 PL-55 2"
BP411-30 (1" MPT) 450,000 46.4 6.1 45.4 5.8 607 2"
BP424-20 (2" MPT) 600,000 61.8 4.8 60.6 4.2 609 2½"
BP424-30 (2" MPT) 900,000 92.7 4.8 90.9 4.5 611 3"
BP424-40 (2" MPT) 1,200,000 123.6 5.1 121.2 5.0 625 3"
BP424-50 (2" MPT) 1,350,000 139.1 4.7 136.3 4.6 619 3"
Larger models are available upon request.
† Assumptions: Longest radiant loop is 200 ft. PEX.
†† Pipe size shown isn’t the connection size of the heat exchanger.
Snow Melt Applications
Boiler Side: Water 180º F supply, 160º F return
Snow Side: Water 40% P. G. 100º F supply, 130º F return
Heat
Boiler Side Snow Melt Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 30,000 3.1 2.4 2.1 0.9 NRF-25 ¾"
BP400-10 (¾" MPT) 45,000 4.6 5.1 3.2 2.1 NRF-35 ¾"
BP400-14 (¾" MPT) 60,000 6.2 4.2 4.3 1.9 NRF-25 1"
BP400-20 (¾" MPT) 100,000 10.3 5.4 7.1 2.7 NRF-36 1"
BP400-40 (¾" MPT) 175,000 18.0 5.2 12.5 2.8 NRF-36 1½"
BP412-30 (1" MPT) 250,000 25.8 4.1 17.9 2.1 PL-36 1½"
BP412-30 (1" MPT) 300,000 30.9 5.8 21.4 2.9 PL-55 2"
BP412-50 (1" MPT) 450,000 46.4 6.2 32.1 3.3 613 2"
BP424-20 (2" MPT) 600,000 61.8 4.8 42.9 2.8 609 2"
BP424-30 (2" MPT) 900,000 92.7 4.8 64.3 3.0 614 2½"
BP424-40 (2" MPT) 1,200,000 123.6 5.1 85.7 3.2 625 3"
BP424-50 (2" MPT) 1,350,000 139.1 4.7 96.4 2.9 625 3"
Larger models are available upon request.
† Assumptions: Longest radiant loop is 250 ft. PEX.
†† Pipe size shown isn't the connection size of the heat exchanger.
Domestic Water Heating
Boiler Side: Water 180º F supply, 130º F return
Domestic Water Side: Water 50º F supply, 140º F return
Heat
Boiler Side Domestic Water Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 60,000 2.5 1.6 1.3 0.3 NBF-9U
5
/
8
"
BP400-20 (¾" MPT) 150,000 6.2 2.1 3.3 0.6 NBF-9U ¾"
BP400-30 (¾" MPT) 225,000 9.3 2.2 5.0 0.7 NBF-9U 1"
BP400-40 (¾" MPT) 350,000 14.4 3.4 7.8 1.0 NBF-12 1¼"
BP410-30 (1" MPT) 450,000 18.6 6.2 10.0 1.8 NBF-25 1¼"
BP410-40 (1" MPT) 600,000 24.8 6.2 13.3 2.0 NBF-25 1½"
BP410-50 (1" MPT) 800,000 33.0 6.9 17.8 2.4 NBF-25 1½"
BP410-60 (1" MPT) 900,000 37.1 6.9 20.0 2.2 NBF-25 2"
BP410-80 (1" MPT) 1,100,000 45.4 6.8 24.4 2.2 NBF-36 2"
BP423-30 (2" MPT) 1,500,000 61.9 4.6 33.3 1.4 NBF-45 2"
BP423-40 (2" MPT) 2,000,000 82.5 4.6 44.4 1.4 PL-45B 2½"
BP423-50 (2" MPT) 2,500,000 103.1 4.8 55.5 1.5 PL-75B 2½"
Larger models are available upon request. † Assumptions: 200 ft. TEL of copper pipe with (6) 90 degree
elbows. †† Pipe size shown is not the connection size of the heat exchanger.
Larger models are available upon request.
Normal Panel Capacity = 190 BTU/Hr•Ft
2
Larger models are available upon request.
Domestic Water Heating - Double Wall
Boiler Side: Water 180º F supply, 130º F return
Domestic Water Side: Water 50º F supply, 140º F return
Heat
Boiler Side
Domestic Water Side
Model
Exchanged Flow Pressure Drop
Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BPDW410-20 (1" MPT)
60,000 2.5 0.2 1.3 0.1 NBF-9U 5/8”
150,000 6.2 0.4 3.3 0.1 NBF-9U 3/4”
225,000 9.3 3.8 5.0 0.9 NBF-9U 1”
350,000 14.4 4.5 7.8 1.1 NBF-12 1-1/4”
450,000 18.6 5.4 10.0 1.4 NBF-25 1-1/4”
600,000 24.8 4.6 13.3 1.2 NBF-25 1-1/2”
800,000 33.0 5.1 17.8 1.4 NBF-25 1-1/2”
900,000 37.1 4.8 20.0 1.8 NBF-25 2”
1,100,000 45.4 6.3 24.4 3.1 NBF-36 2”
1,500,000
†††
61.9 4.5 33.3 1.3 NBF-45 2”
2,000,000
†††
82.5 5.9 44.4 1.7 NBF-45B 2-1/2”
†
Assumptions: 20 ft. of copper pipe with (6) 90 degree elbows.
††
Pipe size shown isn't the connection size of the heat exchanger.
†††
Two units are required in parallel.
BPDW410-34 (1" MPT)
BPDW415-24 (1" MPT)
BPDW415-34 (1" MPT)
BPDW415-40 (1" MPT)
BPDW415-60 (1" MPT)
BPDW415-80 (1" MPT)
BPDW415-100 (1" MPT)
BPDW415-110 (1" MPT)
(2)BPDW415-80 (1" MPT)
(2)
BPDW415-100 (1" MPT)
B&G Pump
Selection
†
Pipe
Size
††
Flow
Outdoor Wood Boiler
Boiler Side: Water 180º F supply, 155º F return
House Side: Water 140º F supply, 165º F return
Heat
Boiler Side House Side
Model Exchanged Flow Pressure Drop Flow Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BP400-20LP (¾" MPT) 30,500 2.52 0.4 2.5 0.3
BP400-30LP (¾" MPT) 50,000 4.12 0.5 4.1 0.4
BP400-40LP (¾" MPT) 70,000 5.77 0.6 5.7 0.6
BP410-20LP (1" MPT) 80,000 6.60 1.9 6.5 1.6
BP410-30LP (1" MPT) 130,000 10.72 2.2 10.6 1.92
BP410-40LP (1" MPT) 179,500 14.80 2.3 14.6 2.2
BP410-50LP (1" MPT) 229,500 18.92 2.5 18.7 2.4
BP410-60LP (1" MPT) 279,000 23.00 2.8 22.8 2.6
BP410-70LP (1" MPT) 329,000 27.13 3.0 26.8 2.9
BP410-80LP (1" MPT) 378,500 31.21 3.3 30.9 3.2
BP410-90LP (1" MPT) 428,500 35.33 3.7 34.9 3.6
BP410-100LP (1" MPT) 478,000 39.41 4.0 39.0 4.0
Solar Heating
Solar Side: 45% Propylene Glycol 149° F supply, 113° F return
Storage Tank Side: Water 104° F supply, 140° F return
Heat
Solar Side Storage Tank Side
Model Exchanged Flow Pressure Drop Flow Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BP410-10 (1" MPT) 2,100 0.13 < 0.10 0.12 < 0.10
BP410-20 (1" MPT) 6,100 0.38 < 0.10 0.34 < 0.10
BP410-30 (1" MPT) 10,100 0.62 < 0.10 0.57 < 0.10
BP410-40 (1" MPT) 14,100 0.87 < 0.10 0.79 < 0.10
BP415-20 (1" MPT) 24,500 1.51 0.24 1.38 0.13
BP415-24 (1" MPT) 30,800 1.90 0.25 1.73 0.15
BP415-30 (1" MPT) 40,100 2.47 0.27 2.25 0.16
BP415-34 (1" MPT) 46,500 2.86 0.28 2.61 0.17
BP415-40 (1" MPT) 56,100 3.45 0.29 3.15 0.18
BP415-50 (1" MPT) 72,000 4.43 0.30 4.04 0.20
BP415-60 (1" MPT) 87,900 5.41 0.32 4.94 0.21
Swimming Pool Heating
Boiler Side: Water 180º F supply, 130º F return
Pool Side: Water 70º F supply, 107º F return
Pool Heat
Boiler Side Pool Side
Model
3
Size Exchanged Flow Pressure Drop Flow
2
Pressure Drop
Gallons
1
BTU/Hr
GPM PSI GPM PSI
BP400-10 (¾" MPT) 2,000 33,300 1.37 0.5 1.8 0.6
BP400-10 (¾" MPT) 6,000 99,900 4.10 4.1 5.4 5.0
BP400-20 (¾" MPT) 8,000 133,200 5.50 1.7 7.3 2.5
BP400-30 (¾" MPT) 15,000 250,234 10.00 2.7 14.0 4.5
BP412-20 (1" MPT) 20,000 333,645 13.00 2.5 18.0 3.4
BP412-20 (1" MPT) 30,000 500,467 20.70 5.6 27.2 7.7
BP412-30 (1" MPT) 40,000 667,290 27.00 3.9 36.0 6.9
BP424-20 (2" MPT) 60,000 1,000,936 40.00 2.3 54.0 3.6
BP424-30 (2" MPT) 80,000 1,334,581 53.00 1.9 72.0 3.1
BP424-30 (2" MPT) 100,000 1,668,226 67.00 2.8 90.0 4.7
BP424-40 (2" MPT) 120,000 2,001,871 82.50 2.5 108.0 4.2
BP424-50 (2" MPT) 150,000 2,502,000 103.20 2.7 135.6 4.7
Larger models are available upon request.
1) Provides approx. 2º F per hour heating with 180º F boiler to achieve 80º F pool temperature.
2) Pool water flow rate usually requires flow by pass from main pool circulation.
3) Chlorinated pool water can be corrosive to SS316L and Copper. Proper control of chlorine levels is
required or alternate materials of construction should be considered.
Estimate how much heat you need:
Flow x Temperature Rise x 500 = Heat load
Example: (20 GPM) (20º F) (500) = 200,000 BTU/Hr
For a Radiant Heating Application, the choice would
be a BP400-40.
Quick Selection Tables
Radiant Floor Heating
Boiler Side: Water 180º F supply, 160º F return
Radiant Floor Side: Water 100º F supply, 120º F return
Heat
Boiler Side Radiant Floor Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 30,000 3.1 2.4 3.0 1.6 NRF-25 ¾"
BP400-10 (¾" MPT) 50,000 5.2 6.1 5.0 4.2 NRF-36 1"
BP400-20 (¾" MPT) 100,000 10.3 5.2 10.1 4.4 NRF-36 1¼"
BP400-30 (¾" MPT) 150,000 15.5 5.3 15.2 4.9 NRF-36 1½"
BP400-40 (¾" MPT) 200,000 20.6 5.8 20.2 5.5 NRF-36 1½"
BP411-20 (1" MPT) 250,000 25.8 3.3 25.2 3.0 PL-36 2"
BP411-20 (1" MPT) 350,000 36.1 6.3 35.3 5.6 PL-55 2"
BP411-30 (1" MPT) 450,000 46.4 6.1 45.4 5.8 607 2"
BP424-20 (2" MPT) 600,000 61.8 4.8 60.6 4.2 609 2½"
BP424-30 (2" MPT) 900,000 92.7 4.8 90.9 4.5 611 3"
BP424-40 (2" MPT) 1,200,000 123.6 5.1 121.2 5.0 625 3"
BP424-50 (2" MPT) 1,350,000 139.1 4.7 136.3 4.6 619 3"
Larger models are available upon request.
† Assumptions: Longest radiant loop is 200 ft. PEX.
†† Pipe size shown isn’t the connection size of the heat exchanger.
Snow Melt Applications
Boiler Side: Water 180º F supply, 160º F return
Snow Side: Water 40% P. G. 100º F supply, 130º F return
Heat
Boiler Side Snow Melt Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 30,000 3.1 2.4 2.1 0.9 NRF-25 ¾"
BP400-10 (¾" MPT) 45,000 4.6 5.1 3.2 2.1 NRF-35 ¾"
BP400-14 (¾" MPT) 60,000 6.2 4.2 4.3 1.9 NRF-25 1"
BP400-20 (¾" MPT) 100,000 10.3 5.4 7.1 2.7 NRF-36 1"
BP400-40 (¾" MPT) 175,000 18.0 5.2 12.5 2.8 NRF-36 1½"
BP412-30 (1" MPT) 250,000 25.8 4.1 17.9 2.1 PL-36 1½"
BP412-30 (1" MPT) 300,000 30.9 5.8 21.4 2.9 PL-55 2"
BP412-50 (1" MPT) 450,000 46.4 6.2 32.1 3.3 613 2"
BP424-20 (2" MPT) 600,000 61.8 4.8 42.9 2.8 609 2"
BP424-30 (2" MPT) 900,000 92.7 4.8 64.3 3.0 614 2½"
BP424-40 (2" MPT) 1,200,000 123.6 5.1 85.7 3.2 625 3"
BP424-50 (2" MPT) 1,350,000 139.1 4.7 96.4 2.9 625 3"
Larger models are available upon request.
† Assumptions: Longest radiant loop is 250 ft. PEX.
†† Pipe size shown isn't the connection size of the heat exchanger.
Domestic Water Heating
Boiler Side: Water 180º F supply, 130º F return
Domestic Water Side: Water 50º F supply, 140º F return
Heat
Boiler Side Domestic Water Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 60,000 2.5 1.6 1.3 0.3 NBF-9U
5
/
8
"
BP400-20 (¾" MPT) 150,000 6.2 2.1 3.3 0.6 NBF-9U ¾"
BP400-30 (¾" MPT) 225,000 9.3 2.2 5.0 0.7 NBF-9U 1"
BP400-40 (¾" MPT) 350,000 14.4 3.4 7.8 1.0 NBF-12 1¼"
BP410-30 (1" MPT) 450,000 18.6 6.2 10.0 1.8 NBF-25 1¼"
BP410-40 (1" MPT) 600,000 24.8 6.2 13.3 2.0 NBF-25 1½"
BP410-50 (1" MPT) 800,000 33.0 6.9 17.8 2.4 NBF-25 1½"
BP410-60 (1" MPT) 900,000 37.1 6.9 20.0 2.2 NBF-25 2"
BP410-80 (1" MPT) 1,100,000 45.4 6.8 24.4 2.2 NBF-36 2"
BP423-30 (2" MPT) 1,500,000 61.9 4.6 33.3 1.4 NBF-45 2"
BP423-40 (2" MPT) 2,000,000 82.5 4.6 44.4 1.4 PL-45B 2½"
BP423-50 (2" MPT) 2,500,000 103.1 4.8 55.5 1.5 PL-75B 2½"
Larger models are available upon request. † Assumptions: 200 ft. TEL of copper pipe with (6) 90 degree
elbows. †† Pipe size shown is not the connection size of the heat exchanger.
Larger models are available upon request.
Normal Panel Capacity = 190 BTU/Hr•Ft
2
Larger models are available upon request.
Domestic Water Heating - Double Wall
Boiler Side: Water 180º F supply, 130º F return
Domestic Water Side: Water 50º F supply, 140º F return
Heat
Boiler Side
Domestic Water Side
Model
Exchanged Flow Pressure Drop
Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BPDW410-20 (1" MPT)
60,000 2.5 0.2 1.3 0.1 NBF-9U 5/8”
150,000 6.2 0.4 3.3 0.1 NBF-9U 3/4”
225,000 9.3 3.8 5.0 0.9 NBF-9U 1”
350,000 14.4 4.5 7.8 1.1 NBF-12 1-1/4”
450,000 18.6 5.4 10.0 1.4 NBF-25 1-1/4”
600,000 24.8 4.6 13.3 1.2 NBF-25 1-1/2”
800,000 33.0 5.1 17.8 1.4 NBF-25 1-1/2”
900,000 37.1 4.8 20.0 1.8 NBF-25 2”
1,100,000 45.4 6.3 24.4 3.1 NBF-36 2”
1,500,000
†††
61.9 4.5 33.3 1.3 NBF-45 2”
2,000,000
†††
82.5 5.9 44.4 1.7 NBF-45B 2-1/2”
†
Assumptions: 20 ft. of copper pipe with (6) 90 degree elbows.
††
Pipe size shown isn't the connection size of the heat exchanger.
†††
Two units are required in parallel.
BPDW410-34 (1" MPT)
BPDW415-24 (1" MPT)
BPDW415-34 (1" MPT)
BPDW415-40 (1" MPT)
BPDW415-60 (1" MPT)
BPDW415-80 (1" MPT)
BPDW415-100 (1" MPT)
BPDW415-110 (1" MPT)
(2)BPDW415-80 (1" MPT)
(2)BPDW415-100 (1" MPT)
B&G Pump
Selection
†
Pipe
Size
††
Flow
Outdoor Wood Boiler
Boiler Side: Water 180º F supply, 155º F return
House Side: Water 140º F supply, 165º F return
Heat
Boiler Side House Side
Model Exchanged Flow Pressure Drop Flow Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BP400-20LP (¾" MPT) 30,500 2.52 0.4 2.5 0.3
BP400-30LP (¾" MPT) 50,000 4.12 0.5 4.1 0.4
BP400-40LP (¾" MPT) 70,000 5.77 0.6 5.7 0.6
BP410-20LP (1" MPT) 80,000 6.60 1.9 6.5 1.6
BP410-30LP (1" MPT) 130,000 10.72 2.2 10.6 1.92
BP410-40LP (1" MPT) 179,500 14.80 2.3 14.6 2.2
BP410-50LP (1" MPT) 229,500 18.92 2.5 18.7 2.4
BP410-60LP (1" MPT) 279,000 23.00 2.8 22.8 2.6
BP410-70LP (1" MPT) 329,000 27.13 3.0 26.8 2.9
BP410-80LP (1" MPT) 378,500 31.21 3.3 30.9 3.2
BP410-90LP (1" MPT) 428,500 35.33 3.7 34.9 3.6
BP410-100LP (1" MPT) 478,000 39.41 4.0 39.0 4.0
Solar Heating
Solar Side: 45% Propylene Glycol 149° F supply, 113° F return
Storage Tank Side: Water 104° F supply, 140° F return
Heat
Solar Side Storage Tank Side
Model Exchanged Flow Pressure Drop Flow Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BP410-10 (1" MPT) 2,100 0.13 < 0.10 0.12 < 0.10
BP410-20 (1" MPT) 6,100 0.38 < 0.10 0.34 < 0.10
BP410-30 (1" MPT) 10,100 0.62 < 0.10 0.57 < 0.10
BP410-40 (1" MPT) 14,100 0.87 < 0.10 0.79 < 0.10
BP415-20 (1" MPT) 24,500 1.51 0.24 1.38 0.13
BP415-24 (1" MPT) 30,800 1.90 0.25 1.73 0.15
BP415-30 (1" MPT) 40,100 2.47 0.27 2.25 0.16
BP415-34 (1" MPT) 46,500 2.86 0.28 2.61 0.17
BP415-40 (1" MPT) 56,100 3.45 0.29 3.15 0.18
BP415-50 (1" MPT) 72,000 4.43 0.30 4.04 0.20
BP415-60 (1" MPT) 87,900 5.41 0.32 4.94 0.21
Swimming Pool Heating
Boiler Side: Water 180º F supply, 130º F return
Pool Side: Water 70º F supply, 107º F return
Pool Heat
Boiler Side Pool Side
Model
3
Size Exchanged Flow Pressure Drop Flow
2
Pressure Drop
Gallons
1
BTU/Hr
GPM PSI GPM PSI
BP400-10 (¾" MPT) 2,000 33,300 1.37 0.5 1.8 0.6
BP400-10 (¾" MPT) 6,000 99,900 4.10 4.1 5.4 5.0
BP400-20 (¾" MPT) 8,000 133,200 5.50 1.7 7.3 2.5
BP400-30 (¾" MPT) 15,000 250,234 10.00 2.7 14.0 4.5
BP412-20 (1" MPT) 20,000 333,645 13.00 2.5 18.0 3.4
BP412-20 (1" MPT) 30,000 500,467 20.70 5.6 27.2 7.7
BP412-30 (1" MPT) 40,000 667,290 27.00 3.9 36.0 6.9
BP424-20 (2" MPT) 60,000 1,000,936 40.00 2.3 54.0 3.6
BP424-30 (2" MPT) 80,000 1,334,581 53.00 1.9 72.0 3.1
BP424-30 (2" MPT) 100,000 1,668,226 67.00 2.8 90.0 4.7
BP424-40 (2" MPT) 120,000 2,001,871 82.50 2.5 108.0 4.2
BP424-50 (2" MPT) 150,000 2,502,000 103.20 2.7 135.6 4.7
Larger models are available upon request.
1) Provides approx. 2º F per hour heating with 180º F boiler to achieve 80º F pool temperature.
2) Pool water flow rate usually requires flow by pass from main pool circulation.
3) Chlorinated pool water can be corrosive to SS316L and Copper. Proper control of chlorine levels is
required or alternate materials of construction should be considered.
Estimate how much heat you need:
Flow x Temperature Rise x 500 = Heat load
Example: (20 GPM) (20º F) (500) = 200,000 BTU/Hr
For a Radiant Heating Application, the choice would
be a BP400-40.
Quick Selection Tables
Radiant Floor Heating
Boiler Side: Water 180º F supply, 160º F return
Radiant Floor Side: Water 100º F supply, 120º F return
Heat
Boiler Side Radiant Floor Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 30,000 3.1 2.4 3.0 1.6 NRF-25 ¾"
BP400-10 (¾" MPT) 50,000 5.2 6.1 5.0 4.2 NRF-36 1"
BP400-20 (¾" MPT) 100,000 10.3 5.2 10.1 4.4 NRF-36 1¼"
BP400-30 (¾" MPT) 150,000 15.5 5.3 15.2 4.9 NRF-36 1½"
BP400-40 (¾" MPT) 200,000 20.6 5.8 20.2 5.5 NRF-36 1½"
BP411-20 (1" MPT) 250,000 25.8 3.3 25.2 3.0 PL-36 2"
BP411-20 (1" MPT) 350,000 36.1 6.3 35.3 5.6 PL-55 2"
BP411-30 (1" MPT) 450,000 46.4 6.1 45.4 5.8 607 2"
BP424-20 (2" MPT) 600,000 61.8 4.8 60.6 4.2 609 2½"
BP424-30 (2" MPT) 900,000 92.7 4.8 90.9 4.5 611 3"
BP424-40 (2" MPT) 1,200,000 123.6 5.1 121.2 5.0 625 3"
BP424-50 (2" MPT) 1,350,000 139.1 4.7 136.3 4.6 619 3"
Larger models are available upon request.
† Assumptions: Longest radiant loop is 200 ft. PEX.
†† Pipe size shown isn’t the connection size of the heat exchanger.
Snow Melt Applications
Boiler Side: Water 180º F supply, 160º F return
Snow Side: Water 40% P. G. 100º F supply, 130º F return
Heat
Boiler Side Snow Melt Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 30,000 3.1 2.4 2.1 0.9 NRF-25 ¾"
BP400-10 (¾" MPT) 45,000 4.6 5.1 3.2 2.1 NRF-35 ¾"
BP400-14 (¾" MPT) 60,000 6.2 4.2 4.3 1.9 NRF-25 1"
BP400-20 (¾" MPT) 100,000 10.3 5.4 7.1 2.7 NRF-36 1"
BP400-40 (¾" MPT) 175,000 18.0 5.2 12.5 2.8 NRF-36 1½"
BP412-30 (1" MPT) 250,000 25.8 4.1 17.9 2.1 PL-36 1½"
BP412-30 (1" MPT) 300,000 30.9 5.8 21.4 2.9 PL-55 2"
BP412-50 (1" MPT) 450,000 46.4 6.2 32.1 3.3 613 2"
BP424-20 (2" MPT) 600,000 61.8 4.8 42.9 2.8 609 2"
BP424-30 (2" MPT) 900,000 92.7 4.8 64.3 3.0 614 2½"
BP424-40 (2" MPT) 1,200,000 123.6 5.1 85.7 3.2 625 3"
BP424-50 (2" MPT) 1,350,000 139.1 4.7 96.4 2.9 625 3"
Larger models are available upon request.
† Assumptions: Longest radiant loop is 250 ft. PEX.
†† Pipe size shown isn't the connection size of the heat exchanger.
Domestic Water Heating
Boiler Side: Water 180º F supply, 130º F return
Domestic Water Side: Water 50º F supply, 140º F return
Heat
Boiler Side Domestic Water Side
B&G
Pipe
Model Exchanged Flow Pressure Drop Flow Pressure Drop Pump
Size
††
BTU/Hr
GPM PSI GPM PSI
Selection
†
BP400-10 (¾" MPT) 60,000 2.5 1.6 1.3 0.3 NBF-9U
5
/
8
"
BP400-20 (¾" MPT) 150,000 6.2 2.1 3.3 0.6 NBF-9U ¾"
BP400-30 (¾" MPT) 225,000 9.3 2.2 5.0 0.7 NBF-9U 1"
BP400-40 (¾" MPT) 350,000 14.4 3.4 7.8 1.0 NBF-12 1¼"
BP410-30 (1" MPT) 450,000 18.6 6.2 10.0 1.8 NBF-25 1¼"
BP410-40 (1" MPT) 600,000 24.8 6.2 13.3 2.0 NBF-25 1½"
BP410-50 (1" MPT) 800,000 33.0 6.9 17.8 2.4 NBF-25 1½"
BP410-60 (1" MPT) 900,000 37.1 6.9 20.0 2.2 NBF-25 2"
BP410-80 (1" MPT) 1,100,000 45.4 6.8 24.4 2.2 NBF-36 2"
BP423-30 (2" MPT) 1,500,000 61.9 4.6 33.3 1.4 NBF-45 2"
BP423-40 (2" MPT) 2,000,000 82.5 4.6 44.4 1.4 PL-45B 2½"
BP423-50 (2" MPT) 2,500,000 103.1 4.8 55.5 1.5 PL-75B 2½"
Larger models are available upon request. † Assumptions: 200 ft. TEL of copper pipe with (6) 90 degree
elbows. †† Pipe size shown is not the connection size of the heat exchanger.
Larger models are available upon request.
Normal Panel Capacity = 190 BTU/Hr•Ft
2
Larger models are available upon request.
Domestic Water Heating - Double Wall
Boiler Side: Water 180º F supply, 130º F return
Domestic Water Side: Water 50º F supply, 140º F return
Heat
Boiler Side
Domestic Water Side
Model
Exchanged Flow Pressure Drop
Pressure Drop
BTU/Hr
GPM PSI GPM PSI
BPDW410-20 (1" MPT)
60,000 2.5 0.2 1.3 0.1 NBF-9U 5/8”
150,000 6.2 0.4 3.3 0.1 NBF-9U 3/4”
225,000 9.3 3.8 5.0 0.9 NBF-9U 1”
350,000 14.4 4.5 7.8 1.1 NBF-12 1-1/4”
450,000 18.6 5.4 10.0 1.4 NBF-25 1-1/4”
600,000 24.8 4.6 13.3 1.2 NBF-25 1-1/2”
800,000 33.0 5.1 17.8 1.4 NBF-25 1-1/2”
900,000 37.1 4.8 20.0 1.8 NBF-25 2”
1,100,000 45.4 6.3 24.4 3.1 NBF-36 2”
1,500,000
†††
61.9 4.5 33.3 1.3 NBF-45 2”
2,000,000
†††
82.5 5.9 44.4 1.7 NBF-45B 2-1/2”
†
Assumptions: 20 ft. of copper pipe with (6) 90 degree elbows.
††
Pipe size shown isn't the connection size of the heat exchanger.
†††
Two units are required in parallel.
BPDW410-34 (1" MPT)
BPDW415-24 (1" MPT)
BPDW415-34 (1" MPT)
BPDW415-40 (1" MPT)
BPDW415-60 (1" MPT)
BPDW415-80 (1" MPT)
BPDW415-100 (1" MPT)
BPDW415-110 (1" MPT)
(2)BPDW415-80 (1" MPT)
(2)BPDW415-100 (1" MPT)
B&G Pump
Selection
†
Pipe
Size
††
Flow