Is it safe to shut off the main water valve to a house, and put the
water heater on "Low"? We will be leaving the house unoccupied
My concern is the the water evaporating in the 40 gallon tank, and the
tank being damaged. How long before I need to worry that this will
happen with water shut off?
Just turn the water heater completely off...there's no reason if the
house is unoccupied to leave it on. When cold weather arrives, need to
arrange for not freezing any standing water, of course, ...
Do you live in a climate where there are freezing winters? For more
reasons than one, you should leave your furnace set to at least above
freezing, say 40-45 degrees F. In that case, I would simply turn the tank
If you don't plan on leaving the furnace on, you should turn off the tank
and drain it, as well as drain as many interior pipes as possible.
I would never turn the water off to the tank and leave it turned on.
Let me rephrase...simple specific question
How long is it safe for water heater to be on low if tank is full but
main water is shut off (absence is a few months in the northeast), now
until maybe October. I don't want tank to be damaged.
On Sat, 26 Jul 2008 16:40:58 -0400, "Charles"
Turn it off completely. If you leave water in the tank and heat it, it
will try to expand. It *probably* won't hurt anything, but 40-50
gallons of water on your basement floor isn't fun.
Like others have said, either drain the water down completely, or else
leave the furnace on a low temperature to keep the house from freezing
and have a friend come by and check it every now and again.
replace "roosters" with "cox" to reply.
Just turn it off. Lighting a water heater isn't rocket science. Also
check your home owner's insurance; many won't insure an unoccupied
dwelling, and it would be bad to get damage and find it out the hard
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