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Old 01-12-2019, 01:39 PM   #1
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OnDemand Water Heating

Hey All,
New to the online party, but lived full-time for a year, life happened, and now looking to go back to RVing full time.
I'm currently updating the features of my home, and was curious if anyone had any advice for installing an On-demand hot water heater?
I was looking to go fully electric, but understand that is insane on the power draw, and on a 30Amp panel, might be wishing for the moon.
But I am open and hoping someone smarter than me can set me on the right direction.
Thanks,
RabidPika
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Old 01-12-2019, 04:02 PM   #2
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Hi ! Welcome to IRV2! We're sure glad you joined the gang!

Sorry, never used an on-demand Wh! Have fun and keep her between the ditches!

Good luck, happy trails, and God bless!
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Old 01-12-2019, 07:16 PM   #3
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Welcome to the forum and welcome back to the fold.

You are joining a good group of folks here with good info to share. I am sure someone will be along with some help for you.

Enjoy the adventure.
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Old 01-12-2019, 07:31 PM   #4
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The 30 amp circuit is only 120 volt, not sure if you would find a tankless water heater capable of keeping up with demand on this size circuits
Most electric tankless hot water heaters are 240 volt and require "LOTS" of amps to operate. I investigated when I was building my new house and the ones of any size required 3-60 amp breakers to operate. I instead went with a large propane tankless unit that has performed well to date. Very efficient +98%.
Here ia a review of RV tankless water heaters.

https://www.rvweb.net/best-rv-tankle...ters-reviewed/


Also, the tankless water heaters will produce lots of calcium particles that will plug all your faucets over time. I had to install a 200 mesh screen on mine to capture this. I do not have a water softener which would eliminate this, still investigating this option.
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