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joema62 · 09-09-2022, 07:16 AM

I have a 22 Entegra Riatta which has the hot water on demand system. We usually carry 67% of fresh water. I have observed two issues with the system. The first is when on City water and taking a shower, the recycle of water to get the temperature take the city water and dumps the recycled water into the fresh water tank. To solve this I turn off the city water and shower with the fresh tank water. The other issue is when on fresh tank water with the pump, the faucet water never gets above 84 degrees. My question is is there another way so that we do not fill up the fresh water tank and also get the water temp up when using tank water

K7JV · 09-09-2022, 07:32 AM

Hmm. I don't know how your system is designed. On our '21 Esteem, I did my own thing to provide hot water on demand. My system uses an electrically operated solenoid valve that takes hot water from just below the kitchen slide and routes it to the drain line for the fresh tank which is only a couple of feet away. It does not pass water from the hot line to the fresh tank unless the system is activated for the "event". We installed whole-coach RO, so all of our water is used from the fresh tank, so there is zero problem with the system for us, from routing it back to the fresh tank.

Is there a way to turn your system off? If it is using teh pump to "recirculate" the hot water to the fresh tank, it must be the same idea as what I came up with. When you get ready to shower, for example, how do you tell the recirculation system to do its job? It can't be running continuously, or your fresh tank would contain extremely hot water. Can you do something to turn the feature off? Or is there something you can "not" do to keep the feature from turning on?

I can't say, on the temperature question. On ours, the output temperature of the water heater can be set by the control panel. I am assuming yours is set higher than 84 degrees. Are you getting 84 degrees at both sink locations and the shower too, or just at one sink?

Bobby Dowdle · 09-09-2022, 08:37 AM

Do you have aqua hot and watermizer in the shower? Watermzier is the blue puck on the wall? If so, don't use the watermizer connected to city water. It fills the fresh tank with your hot water. It's only meant to be used on water pump. if you are connected to city water just use the shower like you normally would do. Don't use with the watermizer. If you have a small on demand water heater, there is a controller either in the rear bathroom on the wall or under the sink. That needs to be turned up to 124. Also, you need to open the hot faucet more to force the unit to make more hot water.

ttom · 09-10-2022, 09:01 AM

Joma62 ,to me the on demand hot water as Bobby Dow is a mixed bag- some good things with some not so good. On demand gives unlimited hot water when its working correctly - good for long showers. The additional Watermiser feature as Bobby Dowdle points out is a bit confusing when first approached. While the Water miser allows you to run and save the water until it heats up, its real purpose is for use when boondocking. When boondocking you obviously have limited water so "recycling" the water from the tank back to the tank is great. When connected to a city water it is not necessary to use the Watermiser feature. You will be putting the water in the Gray tank but that to me is minimal. For the temp issue there is a panel in the bathroom that you can adjust the temp to your desired temp. The only problem we have had with our system is it will sometimes throw and error code on start up (on demand) but I attribute to "flow rate" on start up. Water flow rate is critical to these systems. Our normal practice now, is to turn the water on cold first and then switch to hot. We love the system. Sorry for the long post, I hope it helps.