Answered my own question
Posted by Paul B. on December 04, 2001 at 15:18:09:
In response to Answered my own question
Since a power vent needs to know when the water heater's gas supply is on, heating the water, they come integrated into some gas hot water tanks.

I'd have to buy a tank, available from several companies, with that feature. One tank, for example, offered it as a $250 add-on feature.

Oh well, since the tank is only a couple years old, I guess my next call will be to the chimney guys to find out how much a stainless-steel liner will run.

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