AquaHot Temp Control Question

[Zmax73]

Tks Russ. Did that increase the quantity of hot water ?

[RussWhite]

No - It has no effect on quantity. The quantity of heated water is what the heat exchanger inside the AquaHot holds. About six gallons I think. Those six gallons are heated to about 200 degrees according to my temperature readout. That is too hot to use directly, so there is a mixing valve that adds cold water to make the water that runs for household use. That is the valve I adjusted to make the water a bit hotter. In my case, not for the shower as it was already hot enough there and the shower has a temperature controlled mixing valve as well, but for washing dishes. I went back to my notes and found that before I adjsuted the mixing valve the hot water to my sink was 110 degrees and after adjustment 117 degrees.
I have two roughly 2500 watt 120vac heaters, one per phase as well as the diesel burner. I have as yet not managed to run out of hot water with both systems active.
From information given by a previous poster it sounds like my mixing valve may have been set a little low either from the factory or a previous owner The AquaHot is one of my favorite features after having propane heat and 10 gallons of hot water in my previous motor home. Good Luck! Russ

[JIM CHALOUPKA]

Russ, if you feel like going that extra bit, 120 deg. is recommended hygienically as the temperature for hot water.

Just sayin. JIM

[Jon Wehrenberg]

FWIW 115 degree water will scald a person. Having the water a little higher and then blending with some cold is OK because you cut down on the amount of HW that you draw from your HW heater.