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Old 05-31-2009, 11:20 PM
Brian Carlton Brian Carlton is offline
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Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
Quote:
Originally Posted by Chas H View Post
I tried using only the furnace to heat water but there was too much variation in the temperture. And the furnace coil had only 1/2" fittings, whereas the electric heater has 3/4". The water from the furnace is mixed with cold as it enters the electric heater to temper it and increase flow. I can shower while doing laundry or running the dishwasher without a change in water temperature or flow.
No question about the benefits of the electric heater..........the problem is the huge cost increase.

BTW, a 1/2" line will flow far more water than the furnace, or the electric water heater, could possibly make.
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