Well, there is that possibility but the outside wall is 25' from the kitchen and bathroom and the building is five stories. I suspect fumes might feed back into nearby apartments.

Then there is the cost of running gas to each apartment. I'll probably keep repairing and replacing the conventional electric tank wh. Costs me about $800 for a new 20 gallon short installed.

Replacing the elements, their controls, the elements and the pop off valve is about $300 I suspect.

I am on a program of replacing all those parts. I had to replace the tank on one or two though as there were factors indicating that the tank was too damaged to repair.

Whatever I do its multiplied by 23 more or less as that is how many units I have in the building.

If gas is practical I will always use that as cost of operating is superior to all known alternatives.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.