How to properly vent 2 gas water heaters

Mikepier · 2013-09-08T01:22:28+00:00

I have a 75 gal water heater with a 4 " vent going into a chimney. If I wanted to add a second water heater, what would be the proper way to vent both into the same pipe? Could I just add a Y and vent both through the same pipe going into the chimney? Reason I wanted to add a second water heater is that this is a multi-family house and I wanted to split the demand for HW by zoning off the apts with 2 water heaters By the way, my steam boiler vents into the chimney from the opposite side with its own separate vent pipe.

Sep 08, 2013 20 Replies

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bob haller 13 years ago

OP could add a vent thru the wall tankless feeding the standard tank, the 2nd standard tank would solve all the common tankless issues while supplying nearly endless hot water.......

or set the current tank to MAX temp and add a tempering valve.......

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