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Posted by Cindy by the Sea on December 09, 2004 at 13:35:02:
Dear Boiler Room... I am planning to replace a gas fired boiler in my home of about 2,000 sq. ft, built in 1928 - hot water radiator system. Several installers have visited my home, and I also did the heat calculations, and will need about 100,000 Btu unit. However, the efficency is in dispute. One installer tells me that the high efficiency boilers will not work that efficienctly in my old system - that I am better off with a 80% efficiency system. He states that the high efficiency systems are really meant to be used in radiant floor heating systems, not the old big cast iron radiators like mine. This installer suggested that the issue has something to do with the temperature of the water after it circulates through the system. He said that the return water will be at a higher temperature in a cast iron radiator system compared to a floor radiant system, and it will not need to be heated as much, so the high efficiency is a waste. Another installer said the high efficiency boiler would be very functional in this application. So, my question is, what efficiency level would you suggest for this type of application? I'm thinking of Weil McLain. Any suggestions would be apprecaited. Thanks.
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