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mamodbasher · 04-07-2009, 05:33 PM

This is an old trick, but a 'tempering' tank can help save $$ on water heating, no matter what you use. Simply use an old water tank (any size, but larger is better) as long as it is sound. With all of the metal wrapping and insulation removed, it then can be connected in the cold water line ahead of your active heater. The water sits in the tank and eventually equalizes in temperature to the indoor air. In most situations, this is around 60 to 70 F. If you compare that to the incoming water temps (almost always under 50 F), that's a lot easier and requires less fuel to heat. This works very well, as long as there is enough water to maintain the usage. It works, it's passive and only takes up a bit more space. Ken.

04-07-2009, 05:33 PM	#13 (permalink)
mamodbasher Go Solar.... Go Often. Join Date: Apr 2009 Location: Hamilton Ontario Canada Posts: 16 Thanks: 0 Thanked 0 Times in 0 Posts	Tempering tank This is an old trick, but a 'tempering' tank can help save $$ on water heating, no matter what you use. Simply use an old water tank (any size, but larger is better) as long as it is sound. With all of the metal wrapping and insulation removed, it then can be connected in the cold water line ahead of your active heater. The water sits in the tank and eventually equalizes in temperature to the indoor air. In most situations, this is around 60 to 70 F. If you compare that to the incoming water temps (almost always under 50 F), that's a lot easier and requires less fuel to heat. This works very well, as long as there is enough water to maintain the usage. It works, it's passive and only takes up a bit more space. Ken.