Furrion Instant Hot Water in Cold Weather

wanderingaimlessly wrote:
Tankless water heaters by design have a limited amount of time to warm water. the heating unit only hold a quart or so of water, so water passing through it is only in the heating coils for about 20 seconds for a faucet discharging less than a gallon a minute. Usually they warm the water about 50 degrees by design at their designed flow rate.
If the incoming water is 70 degrees, then it heats to 120 which is fine, but if the incoming water is 40, then the warmed water only has time to reach 90, which is lukewarm at best.

I agree that this is the limiting factor at 39 degrees. When we are in cold weather 40 degrees to high teens, even with heated water hose the cold water at the faucet is COLD!
We full time, we cook with gas, including using the oven, and broiler, and heat hot water with gas, we also have the electric element on, which helps maintain the water hot. We heat with electricity (RV Comfort Systems "Cheap Heat")and refer is using electricity. We use about one 30# tank of propane a month.
We have a 10 gallon, and we can take showers one after another and both normally have plenty of hot water.