Forum Discussion
CarnationSailor
Sep 28, 2023Nomad
I don't think your problem has anything to do with the tankless water heater. With any water heater, you're going to have to wait for the hot water to travel from the heater to the faucet your using (about a quart).
I had the same problem with trying to use the "button" on the shower head to turn off/on the shower (what you call a sub-shower) - getting a blast of cold water. Research indicated there might have been a solution that involved installation of a check-velve in the hot water line to prevent cold water from backing into the hot water line. Instead, I went to using the water valves instead of the "button" for sub-showers. Problem solved.
I had the same problem with trying to use the "button" on the shower head to turn off/on the shower (what you call a sub-shower) - getting a blast of cold water. Research indicated there might have been a solution that involved installation of a check-velve in the hot water line to prevent cold water from backing into the hot water line. Instead, I went to using the water valves instead of the "button" for sub-showers. Problem solved.
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,188 PostsLatest Activity: Jan 19, 2025