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babecafe t1_ivgcqf5 wrote

Reply to comment by [deleted] in Is my power shower positioned too low on the wall? by sudzikle

Tankless electric use resistance heaters which costs $$$$ to use, and need high current wire and breakers which costs $$$$ to install. Tankless gas, if you've got a sufficient gas line (can go up to 199kBTU) only need a little electricity.

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[deleted] t1_ivgz6ag wrote

[deleted]

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babecafe t1_ivhhv6s wrote

Ok, so your using the electric tankless to provide supplemental heat when the tank runs cold, then. Here in California, electricity runs 35+ cents/kWh, so the relative cost is more dramatic. My local city is now outlawing gas appliances for new construction and 50%+ remodels, and they can have my natural gas tankless water heater when they can literally pry it out of my cold dead hands. I just finished my 90% remodel + 9% addition, so I'm well positioned that way.

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babecafe t1_ivhirn8 wrote

Recirculation just keeps the HW pipes (and contents) warm, which should be insulated with foam. You can use a timer to decide when it runs. Gas heat in a tankless is pretty much instantaneous, but there is a "cold water sandwich" issue when there not enough mixing in the pipes.

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