Brochure

1 Triangle Lane Blackwood, NJ 08012
[phone] Fax [phone]
E-mail: [e-mail]
2009-62 MF Literature_W/Titanium
An
Company
Revised Date: 5/23/11
Step 1: Determine heat-up rate based on type of pool
use
The desired heat-up rate is usually the most important
factor affecting boiler/heat exchanger selection.
The desired heat-up rate for extended use (summer sea-
son) is 1ºF/hour, for periodic use (weekends, holidays)
2ºF/hour.
Step 2: Determine pool capacity
= 5.9 x
= 7.5 x
Capacity
(gals.)
Capacity
(gals.)
Average depth
(feet)
Average depth
(feet)
x
xx
Circular Pools
Diameter
(feet)
2
Length
(feet)
Width
(feet)
Rectangular Pools
Step 4: Check heat loss to surroundings
= 12 x
Pool
surface
a
rea
(sq. ft.)
Desired
pool
temp.( F)
Coldest avg.
air temp.
d
uring
use( F)
Heat loss
(
btu/hr)
x
-
Pool
Capacity
(gal.)
1 F/hr Heat-Up Rate
Boiler
Output
Required
(Btu/hr)
Heat
Exchanger
Model
Heat
Exchanger
Model
Boiler
Output
Required
(Btu/hr)
2 F/hr Heat-Up Rate
2,000 16,683
33,366
66,732
1
00,098
133,464
166,830
200,196
233,562
266,928
300,294
333,660
367,026
MF-80
MF-80
M
F-80
MF-80
MF-80
MF-80
M
F-135
MF-135
MF-80
MF-135
MF-135
MF-135
MF-200
MF-200
MF-200
MF-200
MF-260
MF-260
MF-400
MF-400
MF-400
MF-400
33,366
5
0,049
66,732
83,415
100,098
116,781
133,464
150,147
166,830
183,513
4,000
8,000
6,000
10,000
12,000
14,000
16,000
18,000
20,000
22,000
24,000
200,196
400,392
433,758
467,124
500,490
533,856
567,222
600,588
633,954
667,320
700,686
734,052
767,418
MF-260
MF-260
MF-260
MF-260
MF-400
MF-400
MF-400
MF-400
MF-400
MF-400
MF-400
MF-400
MF-400 (2)**
MF-400 (2)**
MF-400 (2)**
MF-400 (2)**
MF-400 (2)**
MF-400 (2)**
MF-400 (2)**
MF-260 (2)**
MF-260 (2)**
MF-260 (2)**
MF-260 (2)**
MF-400 (2)**
216,879
233,562
250,245
266,928
283,611
300,294
316,977
333,660
350,343
367,026
383,180
26,000
30,000
28,000
32,000
34,000
36,000
38.000
40,000
42,000
44,000
46,000
Boiler Output and Heat Exchanger Selection Table
Sizing Guide
Note: ** Two heat exchangers piped reverse return
Step 3: Select Maxi-flo Heat Exchanger required
Enter selection table with pool capacity and select
M
axi-Flo heat exchanger and its recommended boiler
output capacity, based on heat-up rate.
Boiler output selected in Step 3 must be larger than the
heat loss to the surroundings.
Note: The typical desired pool temperature is 80ºF.
Note: The heat-up rate will decrease as outdoor temper-
ature drops.
EXAMPLE
Determine the boiler output and heat exchanger required
for a 30-foot long by 16-foot wide by 5.5 foot average
depth pool. The pool is for extended use during the sum-
mer season and the coldest air temperature anticipated
is 65ºF.
Step 1:
For extended use, the desired heat-up rate is 1ºF/hour.
Step 2:
Pool capacity = 7.5 gal/Ft
3
x 30' x 16' x 5.5' = 19,800 gallons
Step 3:
From selection table, for 20,000 gallons and 1ºF heat-up
rate:
Required Boiler Output = 166,830 Btu/hr.
Required Heat Exchanger = Model MF-200
Step 4:
Surface Area = 30ft. x 16ft. = 480 sq. ft.
Heat Loss = 12 x 480 x (80ºF - 65ºF) =86,400 Btu/hr.
Heat loss is well within required boiler output capacity.