On-demand water heaters
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 w...
Forum Discussion
The previous generation of Girard tankless had a recall for defective gas valves. My 2017 has the correct valves marked with with a white plastic circle around the top of them. Look at the unit and you should see the two valves on the lower left of the unit. Tankless is not the best for dry camping as said above, but if your on hookups, this is my method that works fine for me.
1. Purchase a high quality Rinaldo adjustable water pressure gauge. You can get it on Amazon. I set mine at 60psi and I usually see a running pressure of about 40psi. The standard regulators sometimes keep the pressure too low.
2. Set the water temperature at the wall to 105 degrees
3. Use only hot water no cold. You don't need to mix in cold cause the water temperature is set.
4. Turn your hot water on full in the shower and leave it there. No on and off because the unit will cycle on/off and you get uneven cycle. Don't even touch the cold water in the shower.
5. Go to camping world and get a black water cap that has the built in hose connector. Connect a hose and just leave your grey valve open and drain the water down the sewer. At the end of your trip go back to the solid cap and collect some grey water so you can fill the black tank with fresh water/chemical. Hope it works for you. I'm happy not to use the campground showers anymore.
1. Purchase a high quality Rinaldo adjustable water pressure gauge. You can get it on Amazon. I set mine at 60psi and I usually see a running pressure of about 40psi. The standard regulators sometimes keep the pressure too low.
2. Set the water temperature at the wall to 105 degrees
3. Use only hot water no cold. You don't need to mix in cold cause the water temperature is set.
4. Turn your hot water on full in the shower and leave it there. No on and off because the unit will cycle on/off and you get uneven cycle. Don't even touch the cold water in the shower.
5. Go to camping world and get a black water cap that has the built in hose connector. Connect a hose and just leave your grey valve open and drain the water down the sewer. At the end of your trip go back to the solid cap and collect some grey water so you can fill the black tank with fresh water/chemical. Hope it works for you. I'm happy not to use the campground showers anymore.
