Specifications Sheet

Model
1
Input MBH DOE
Heating
Capacity
MBH
Net AHRI
Water
Ratings
MBH
DOE
Seasonal
Eciency
AFUE%
Vent
Diameter
(In.) Vent Material
Boiler
Water
Content
(gal.)Max Min
ECO 70 70 14 65 57 95.2 2 or 3
PVC, CPVC, PP,
SS
2.5
ECO 110 110 22 101 88 95.0 3
PVC, CPVC, PP,
SS
2.5
ECO 155 155 28 143 124 95.1 3
PVC, CPVC, PP,
SS
3.2
Sidewall direct vent Through-the roof direct vent
Sidewall direct vent Through-the roof direct vent
DIMENSIONS
MULTIPLE VENTING OPTIONS
SPECIFICATIONS
Model
Supply
Tapping (in.)
Return
Tapping (in.)
Gas
Connection
Size (in.)
Minimum
Recommended
Pipe Size (in.)
Approx.
Shipping
Weight (lbs.)
ECO 70 1 1 ½ 1 117
ECO 110 1 1 ½ 1 117
ECO 155
1¼ 1¼ ½ 1¼ 130
1
Natural gas field convertible to LP as standard equipment
In the interest of continual
improvements in product and
performance, Weil-McLain
reserves the right to change
specifications without notice.
3
*70 and 155 only
*
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