GWA Gas-Fired Water Boiler - Union Steam
2018-3-20 · GWA Gas-Fired Water Boiler 52,000 to 245,000 Btuh Input Natural or Propane . Construction • Atmospheric (chimney) venting ... • Vertical draft hood • Electrical junction box • 24-VAC combination gas valve • Combination relay receptacle and 40VA • transformer and plug-in circulator relay
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