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I have a tankless propane gas water heater, how can I prevent it from freezing every winter, since t

Author : Lynn

Submitted : 2018-01-12 12:26:42    Popularity:     

Tags: water  heater  gas  tankless  propane  

Need to build a insulted lean to on house. You'll need to exhaust the flue out of closet an either put vent in door to bring in combustion air or connect air in

Answers:

Need to build a insulted lean to on house. You'll need to exhaust the flue out of closet an either put vent in door to bring in combustion air or connect air intake pipe

It CAN'T freeze, because it doen't hold water. The pipes feeding the unit CAN freeze if not properly insulated. That said, the LEAST competent plumber has known how to properly insulate the pipes for about 50 years longer than tankless water heaters have been available.

Brandon's last paragraph is DEAD WRONG. The laws of physics make that IMPOSSIBLE. It is true that the larger the difference in temperature between the water and the surrounding environment, the faster heat will be lost to the environment. However, the rate of heat loss is proportional to the temperature difference and declines as the water cools. At some point, the warmer water will reach the starting temperature of the colder water. From that time, it will take EXACTLY as long to freeze as if it had started at the lower temperature. From a scientific perspecitve, it actually DID start cooling from the lower temperature the moment it reached that temperature.

Outside wall as in outside of your home? If the water heater is rated for outdoors then the manufacture have already built it to withstand the harsh elements outside, You will just need to insulate any exposed water pipes from the unit. Use a good thick pipe insulating wrap, the ones with the sticky adhesive are nice.
If the water heater is rated indoor i hope its not mounted outside on your wall that would be a big problem left out in the elements like this. If its inside you just need to insulate the pipes as well.

Warm water will freeze faster than the cold water this is called the Mpemba effect therefor pipe insulation is essential. Insulation in key if you don't want stuff to freeze.

Need to build a insulted lean to on house. You'll need to exhaust the flue out of closet an either put vent in door to bring in combustion air or connect air intake pipe. Installing a light thats either incandescent or halogen to turn on during cold weather would help to. It will produce heat in the closet to help prevent freezing.
Or you could look at relocating water heater to the inside of the house.

How about actually wrapping the pipes.
U can have insulated shelter built around it and pipes.
Ours has R20 sides roof with heater tape on supply and discharge pipes.
Hasn't frozen in negative 15 F weather YET.



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