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 ...
Forum Discussion
westend wrote:Wild Card wrote:What if the hot output of the on-demand heater was somewhat looped/bypassed back into the fresh water tank? That would keep the flow rate up and water wouldn't go into a waste tank/sewage hose. A valve in the heater loop close to the water tank could be the only control needed.
Tankless on deman require a certain flow to work. Not good for rv in my opinion
The logistics of plumbing like this may be beyond easy installation, in some cases. In my rig, it would be easy, I have the freshwater supply pipes inside an interior chase leading to the back.
BTW, what is the sound level of these tankless units?
Could be done, but would need an automated 3 way valve and a control scheme.
