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Posted by M,ARSHALL on February 22, 2005 at 17:47:34:
In Reply to: Help! Installers in Dispute: Hot Water Boiler Efficiencies - New Boiler Recommendations? 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.
THE SECOND MAN IS RIGHT. THE BEST BOILER OUT THERE IS THE COLUMBIA 5 STAR FOR THE PRICE AND IS A TRUE 3 PASS BOILER..........THE HEAT LOSS AND THE TYPE OF BASEBOARD HAS NOTHING TO DO WITH THE EFFICIENCY. CAST IRON IS OK AND STEEL IS OK....I PERSONALLY AS A PROFESSIONAL IN THE FIELD GO WITH THE STEEL( CAST IRON BOILERS ARE HELD TOGETHER WITH EITHER STEEL PUSH NIPPLES OR RUBBER) SO NEITHER REALLY LASTS LONGER.......THE BETTER THE EFIICIENCY THE BETTER YOU PROFIT. ALSO CAST IS USUALLY MORE EXPENSIVE AND THE COST IS USALLY NOT MADE UP