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Will Hot Water From Dylux RV Tankless Water Heater Last More Than A Few Minutes  

Updated 06/04/2026 | Published 05/28/2026

Question:

We have an on demand in our 2019 Thor Quantum WS31 that turns cold after a couple minutes of use and we can’t seem to figure out why it does this. So will this unit solve that problem?

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Expert Reply:

Hi Bonnie! Yes, the Dylux RV Tankless Water Heater # DY54FR will solve that problem. As long as you have water and propane this water heater will continue to deliver hot water as long as you need it.

What kind of water heater do you have now?

expert reply by:
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Robin H
Dylux RV Tankless Water Heater
Dylux RV Tankless Water Heater
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Bonnie S. profile picture

Bonnie S.

6/3/2026

When I looked it up, it showed I had a 6 gallon tank and that my model didn’t come with the tankless. But I knew I had a tankless. I went and looked on my RV itself. It’s a Girard GSWH-2 tankless water heater.

Robin H. profile picture
Etrailer Expert

Robin H.

6/4/2026

@BonnieS that's a bit surprising, it must have been replaced at some point. If this problem started after winter, it's possible the unit wasn't properly winterized and suffered freeze damage. Either way, replacing it with the Dylux # DY54FR will solve the issue.
Bonnie S. profile picture

Bonnie S.

6/4/2026

@RobinH No clue about that. But it’s done that ever since we bought it in 2021. It’s a recurring problem.

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