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Posted by Visitor0118 on January 20, 2006 at 09:48:01:
In Reply to: Re: Efficiency of HB SMith SOB-S7 model posted by Heatpro on January 18, 2006 at 17:25:01:
Thanks heatpro, but the one there is dated even more recently. On page 3 it notes "This
Guideline deals specifically with natural gas-fired
boilers." and the one I have is oil.
You noted the original guide was put out 1978 -- the boiler was installed 1977 from paperwork I found: so you think there is no way to tell its efficiency?
I'm still looking at the DoE guide and the net, any further information on determining efficiency of that old boiler would be helpful.