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Posted by Heatpro on January 17, 2006 at 18:17:50:
In Reply to: btu's v.s zones of heat posted by captain on January 17, 2006 at 17:47:03:
Well, an 80 gallon indirect water heater needs about 70,000 btuh, after that it depends on what heat is needed in the rooms in each zone.
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