Description

Note: product title indicates boiler’s Net AHRI (Net IBR) rating.
Thermoflo GWA is a standard-efficiency, cast iron, chimney-vented hot water gas boiler with classic mushroom hood draft diverter, designed to be a high-quality and cost-effective solution for new or replacement boiler installations. It combines traditional, clean design, robust & reliable heat exchanger and top-quality controls.
Boiler includes: draft hood w/ auto damper, Taco 007 circulator & flanges, Resideo gas valve, Hydrolevel 1100H8 LWCO, Williamson 1135-601 gas control, Hartland transformer (model 571842371), pressure relief valve, tridicator gauge, drain valve and other components shown in the photos.

Features:

Manufactured in the USA
Factory-packaged and assembled
Classic vertical “mushroom” draft hood and damper included
Premium-level, familiar controls/components include Honeywell/Resideo Gas Valve, Taco 007 circulator, Hydrolevel 1100H8 LWCO, Williamson 1135-601 Gas Control, Field Controls damper and Hartland Transformer
Left side piping
Stainless steel burners
Insulated heavy-gauge jacket
One-piece front access door for easy service
Approved for up to 2,000ft altitude installations (up to 4,500ft with optional kit)
CSA certified for installation on combustible flooring (but not carpets)

Technical Specifications:

Input (BTU): 67,000
Net AHRI Rating (BTU): 48,000
DOE Heating Capacity (BTU): 56,000
Efficiency (AFUE): 84.0%
Fuel Type: Natural Gas
Boiler/System Type: Hot Water (Hydronic) Cast Iron Gas Boiler
Boiler Connections: 1-1/4″ Supply/Return Connections (recommended pipe size is 1″), 3/4″ NPT – Relief Valve, 3/4″ NPT – Drain, 1/2″ NPT – Gas
Pressure Specs: 30 psi relief valve setting, 50 psi max. allowed working pressure
Internal Water Volume (Gal): 1.5
Vent Type: Chimney (Atmospheric) Vent
Vent Pipe Size: 4″ (standard Cat I galvanized chimney vent pipe)
Electrical: 120V, 1-phase, 60Hz
Dimensions: 10″ Wide x 23″ Deep x 29″ High (53″ with draft hood)
Weight: 200 lbs (approx. ship weight)