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Old 05-07-2022, 11:01 PM   #1
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THOR #25579
Hot Water

Hey y'all, I have a 2019 37TB. I get hot water to both bathrooms but zero to the kitchen sink, why??
Yes I get water to the sink on both hot and cold sides buy the hot is not hot! Help please!

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Old 05-07-2022, 11:19 PM   #2
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When's the last time it worked correctly? What has transpired since it worked correctly? Have you verified both showers and both bathroom sinks work correctly? Any change when using the pump vs using city water?
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Old 05-07-2022, 11:45 PM   #3
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It works sporadically it seems. It worked yesterday but not today. We have done nothing different. Both bathrooms work fine.
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Old 05-08-2022, 01:47 AM   #4
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Tank or tankless water heater?
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Old 05-08-2022, 02:22 AM   #5
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Tankless
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Old 05-08-2022, 02:56 AM   #6
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How long do you allow the hot water only to run, before you conclude there is no hot water?

How far is the red pex line from the tankless water source?

What is capacity or volume of heated water output from tankless heater?
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Old 05-08-2022, 01:33 PM   #7
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Quote:
Originally Posted by Tim H View Post
Tankless
Remove the faucet aerator and clean it. Not enough flow = no hot water.
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Old 05-08-2022, 02:20 PM   #8
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My suggestion to the OP... investigate flow issues, blocked screen, kinked flexible lines, etc

Expanding a little more...

Seems like most "no hot water" issues with tankless comes from lack of flow. While I understand that a certain volume of water must flow through the heat exchanger, this design presents problems for boondocking.

I don't know about how others conserve water when boondocking, but we RARELY leave a faucet on full blast for any length of time. Currently, we run the hot water into a pitcher until the water is hot, then pour the cold pitcher water into our Berkey filter.

Rinsing dishes only needs a trickle of hot water... which seems impossible with a tankless. We take navy showers, which is the only time the hot is on full blast. I installed a positive shut off in the shower... not one of those trickle jobs.

My point is in a boondocking water conservation situation, how do you effectively manage hot water if forced to run a tap at full volume? A great design for full hookup campgrounds and residential use... but I'm not sure about boondocking.
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Old 05-08-2022, 09:16 PM   #9
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The search function is your friend. Try what I recommend in this thread….


https://www.thorforums.com/forums/f8...ter-30531.html
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Old 05-18-2022, 09:58 PM   #10
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I also have that problem with my 2019 Thor Aria 3901. I am looking into replacing the kitchen faucet with a dual handle one instead of the single handle. What I am finding is the pex tubing connects to the faucet to smaller size tubing which I believe is choking off the flow that the tankless hot water heater needs to see for flow requirements. The kitchen faucet is the furthest from the heater. Another option I am investigating is a possible hot water recirc pump that only works when you need it to so as to not run it full time and use up your gas. Not much success with this one. In the mean time an electric tea kettle has been working just fine! Good Luck.
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Old 05-18-2022, 10:31 PM   #11
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I opened the holes in the restriction disc in the faucet end with a drill bit.
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