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Posted by tk03 on March 14, 2010 at 15:25:12:
In Reply to: New home heating posted by Alaska Dave on March 12, 2010 at 23:39:45:
First make sure you can use a water heater for heating as many states do not allow it even though some techs do it anyway against code.
Get a heat loss done and size the boiler correctly.
The stainless steel heat exchangers are selling probably 5 or 6 to one aluminum due to not requiring special aluminum antifreeze every 5 - 6 years and less issue with Ph.
For more info on heat loss follow link
http://www.comfort-calc.net/tech_area_index.htm