Tankless Hot Water System

Plenty of reading hear about thankless WH's.
http://www.irv2.com/forums/f44/evergreen-bay-hill-162477.html

Dick_B wrote:
Search this Forum for `tankless' and read on. IMHO it's a bad idea for an RV.

Why? They are used all over the world in most countries in homes and rv's.

Whats your reasoning?

Got this from a dealer today.
The hot water heater is gas fed and is an Atwood product which is made in the U.S.A. with a 2 year warranty. Drain the tank when trailer is in stoarage. There is an adjustment knob which is set at the factory. It can easily be turned up or down to adjust water temp. Replacement parts will be easy to get as Atwood is in Elkhart Indiana. There is a parts list in the operation manual.

It does say in the manual to take normal showers as that is how the heater works the best. (no Navy showers needed). It does mention in the manual that no Navy showers during (dry camping, using water pump) are needed. When hooked up to city water at a campground(constant water pressure) it would not make a difference.

Rollin on RV has a show that includes discussion on tankless hot water heaters along with a focus on Truma in the second half of the show ...

https://www.youtube.com/watch?v=SAN6vJbA9lI
http://www.rollinontv.com/


I was also quite interested in the level that was shown early in the video. I could not get the right name for it, anyone seen that before? NVM, wrote rolinontv and got the info I wanted: hopkins 09715 hitch level

Bob & Ann wrote:
Nvr lost
We had our motor home built for us. It came with the standard HW tank but we had the option of ordering the hot water on demand system. We have enjoyed it as it puts out a continuous flow of hot water. However for it to work well you have to have close to 55 pounds pressure for it to operate properly. If you are in a campground with low pressure we fill our fresh water tank and run the pump. We find that it uses very little propane as it only heats when you draw hot water. The only draw back is it is a little more difficult traveling in very cold winter weather. It is important that you drain it when traveling in freezing weather as it causes major damage if your copper coils burst. You are fine if you are set up in even zero degree weather. We have used it at six degrees. You cannot travel with the gas on to the unit as when it runs while moving the flame can fan out and burn its wiring.

My new one will keep the temps high enough to keep the unit from freezing. Haven't had it blow out yet. my fridge has never blown out either

nomad297 wrote:
It will not be electric because you would never have enough available amperage to raise the temperature enough to achieve 120 degree water at 2.5 gpm.

Bruce

mine is propane only

funpilot wrote:
There is another good discussion on this topic here:

http://forums.goodsamclub.com/index.cfm/fuseaction/thread/tid/28094237.cfm

I posted my thoughts on a new to market instant hot water heater from Truma at the end. Since I do not have one I cannot be accused of being a plant for the company (I hope). I do agree with the general comments about how the current ones all have issues. I am praying this one does not as it appears to be the most expensive.

Thanks for the link.

There is another good discussion on this topic here:

http://forums.goodsamclub.com/index.cfm/fuseaction/thread/tid/28094237.cfm

I posted my thoughts on a new to market instant hot water heater from Truma at the end. Since I do not have one I cannot be accused of being a plant for the company (I hope). I do agree with the general comments about how the current ones all have issues. I am praying this one does not as it appears to be the most expensive.

Grandpere wrote:
To the best of my knowledge there are no RV mfgrs who install tankless hot water tanks. They are all an aftermarket add on. I wish I could remember all the cons that were told to me about these systems in RV usage by my RV mechanic, but my poor memory precludes that. There were enough that my DW & I opted to replace out hot water heater with another tank model. Basically it boiled down to that they are still so new that there are still many problems with them. As for people who have them, the consensus is a definitely a love them or hate them. Do a search and you will find lots of reading on the topic.

My Wildcat came standard with a tankless water heater. I will be changing it to a standard tank type heater.

It will not be electric because you would never have enough available amperage to raise the temperature enough to achieve 120 degree water at 2.5 gpm.

Bruce