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250 HP WILLIAMS & DAVIS BOILER INC. 2- Pass Dryback Firetube BoilerModel # 777. BTU Input 10,500,000. W & D S/N 7166. Electrical current for controls is 1/60/120 volt. Motors are 3/60/440 volt. Contains 148 tubes that are 2 1/2" diameter X 156" long. Natural gas fired burner model No. AP - 130419. The max operation pressure is 150psi. Max actual operation pressure 125 - 130psi. Burner brand: Webster Autoflame We always used a water treatment with this boiler. Weight 22,000 lbIndependent gas meter included.Still connected to natural gas and to electricity and can be tested and checked working.Price includes all gauges, valves, inlets, outlets, control panels, and all piping that leads into and out of the boiler! A complete package.Also available but not included is a Boiler Feed Pump and a Blow Down device. Additional Prep Fees May Apply