High Efficiency Condensing Water Heater
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Atlas GS Condensing boilers perform dependably and quietly, offering the highest efficiency solutions for space heating, domestic and process hot water. Modular design, robust controls and low emissions make the Atlas GS the clear choice for all of your high efficiency needs.

Model
GS 1.0
GS 1.5
Efficiency
97%
Size (MBtu/hr)
1,000
1,500
Firing Mode
Full Modulation
Turndown
4 to 1
NOx Levels
Less than 10 ppm
Condensing
Yes
Min Inlet Water Temperature
No
Sealed Combustion Chamber
Yes
Completely Delimeable
Yes
Powered Combustion
Yes
Vent Size
6"/8"
8"
Gas Connection Size
1"
1-1/4"
Water Connection Size
1-1/2"
Dimensions (HxDxW)
52"x46"x29"
61"x46"x29"
Minimum Flow Rate / Pressure Drop
11 gpm / 3.2 ft
16.5 gpm / 10.4 ft
Maximum Flow Rate / Pressure Drop
40 gpm / 40.6 ft
40 gpm / 63.4 ft
Gas Pressure Required
9-14" W.C.
11-14" W.C.
Electrical Requirements
120 V 60 Hz 1 Ph @ 15 A

 
 
 
Gritton & Associates has been serving Utah (UT), Idaho (ID), Nevada (NV) and Wyoming (WY) for over 60 years.
Our main lines include Bell & Gossett, Camus Hydronics, G&L, Hoffman, Kadant Johnson, McDonnell & Miller, Metraflex, and Trerice.
FHRA - Fluid Handling Representatives Association - Heat transfer, flow control, hydronics, pumping FHRA - Fluid Handling Representatives Association
FHRA is a full service organization of heat transfer, hydronics, and pump manufacturer’s representatives specializing in ITT Bell & Gossett, Hoffman Specialty, Domestic Pump and McDonnell & Miller products.