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Posted by Marty on July 30, 2004 at 08:24:18:
I am converting residential heating from oil to gas. I have spoken to several contractors, one says a 140,000 btu steam boiler is sufficinet, another says I need a 210,000 btu unit and the third doesn't talk btu instead tells me I need 325 square feet of steam. Any suggestions on how to really determine what size boiler I need.