On-demand water heaters – do they work?
We have a new Thor brand class C motorhome with an tankless Girard Brand RV water heater. In the shower the water will temporarily turn warm after the hot water faucet is on and run for a while, but ...
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Cycling off and on is common on tankless systems.
These units need a minimum flow to turn the heater on, if the flow drops the heat turns off. Mixing hot and cold reduces the Hot flow just enough to shut the unit down.
Try barely opening the hot water at the bathroom sink while running the shower. Just a small steady stream will often give the unit sufficient flow.
These units need a minimum flow to turn the heater on, if the flow drops the heat turns off. Mixing hot and cold reduces the Hot flow just enough to shut the unit down.
Try barely opening the hot water at the bathroom sink while running the shower. Just a small steady stream will often give the unit sufficient flow.
