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Posted by cglex on September 17, 2008 at 11:21:43:
In Reply to: Re: Decisions on what to do with failed Burnham gas boiler posted by HeatPro on September 17, 2008 at 11:09:13:
The Viessman does have an outdoor sensor, but it only controls the valve for the radiant system, not the boiler.
So if I go from a 80% AFUE series 2 to a 95% system, are my savings 15% or 19% (95/80?
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