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Question DetailsAsked on 10/13/2019

Is it going to harm my hot water heater if the cold inlet valve is left off when the tank fills?

I have a situation, at least until a plumber comes out, in which when my hot water tank fills, unless I'm there and actually hear the gas burner turn on, I have to run in and turn on the cold inlet valve, then when the tank fills turn it back off, otherwise because I'm a leak in my kitchen, if I leave it on continuously, it'll flood my kitchen! This is a brand new water heater, so it's fine, but I'm wondering if I will destroy the burner or anything if by accident when the tank fills if the valve is off.

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2 Answers

-1
Votes

I'm not really sure I understand the scope of what is going on but turning on your cold water at the kitchen sink has nothing to do with or related to your hot water heater. When you use hot water in the house the cold water will refill the heater at the same time. The water heater will remain full and the fresh cold water is routed to the bottom of the heater and the hot water is pushed out the top. If you turn off the cold valve at the heater you will not get hot water at your fixtures in the house.

Hope this helps.

Answered 1 month ago by skipcrater

0
Votes

To clarify, I'm only referring to turning on the valve on top of the hot water tank, when the heater kicks on. The kitchen sink is fine, there's a leak in the pipes beneath the sink, which is why that valve on the water heater stays off. But basically I'm wondering if I leave that valve off and don't let any cold water in, and the heater kicks on, and tries to fill the tank, is it going to cook my water heater?

Source: Tim22

Answered 26 days ago by Tim22




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