Tankless water heater

64thunderbolt wrote:

milosusa wrote:

Lantley wrote:

funpilot wrote:
Are you saying you need to let faucet run for 15 seconds before you have hot water?

There are three versions of the Truma hot water heater. The basic has no cold weather protection. The "comfort" has the cold weather protection and provides classic on-demand hot water in that you need to run the water until the cold water that is already in the line is flushed out (in my case about 10 seconds cause the distance from my tank to the shower is only about 4 feet). And there is the comfort plus model that allows you to keep all the water in the hot water line warm so that you get instant hot water all the time. The plus model is best installed when the RV is being built as it requires a circular route for the hot water lines to keep everything warm.

Good Info. It is the delay or priming that limits the tankless for RV use in my book.
Having unlimited hot water is great if you have an unlimited supply of water and unlimited sewage capacity. However if either is limited the benefits of a tankless heater are also limited.

You are exactly right, they are great when on hook up, but for dry camping they simply sucks ...you fill your holding tanks pretty quickly.Plus at least on Girard you drain your batteries, because the cooling fan turn on every time you try to use hot water, even with water flowing just for second.
I am taking mine out and just put conventional water heater with tank, never had one problem with them and hot water is instant .
milos

No heater is instant. There is always cool water in the lines in any situation. If that small fan depletes your battery you don't have enough batter to dry camp @ all. I dry camp all the time. Some trips are 4/5 days. Inv, WH, nothing runs my batteries down.