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Posted by Kevin Doll on December 29, 2003 at 21:14:25:
Hello - we purchased a 4,000 sq foot home that was built in the late 1930's. It currently has a Weil-Mclain CGM-8 series 6 boiler that uses 7 radiators on the first floor. All 6 radiators on the second floor were replaced at some point with a coil in the air handler in the attic. The boiler appears to have been installed in the early 1980's, as there are AB May stickers on it since then. Last fall we had $600 a month gas bills (midwest / Missouri). The system has been checked over, and our first "winter" bill was $400, and we haven't even had winter yet. Are the newer boilers efficient enough, that I should replace the old one? Will I recoop the cost of the new unit? I do plan on being in this house for another 30 years.