Reply To: Going to on-demand gas heater, what to do with tank?

The Tank Going to on-demand gas heater, what to do with tank? Reply To: Going to on-demand gas heater, what to do with tank?

#24334
Larry Weingarten
Participant

Hello, The normal bypass valving is a bit different than what you show. I’d put a valve on each side of the heater and then extend those lines up to a horizontal line. Put a valve in the horizontal line between the two verticals. Now you have a system that lets you use the tank (or not) and lets you bypass and drain it as well.

Another thought is to put a tankless heater to serve only the tub, and leave the rest alone. This likely will give you better hot water service for the majority of the fixtures.

Yours, Larry

Water Heater Rescue

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