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Is a thermal expansion valve on a water heater on the cold side?
Wiki User
∙ 12y ago
Yes i is on the cold side. that's where it is soppose to be. And the tube (3/8) goes outside. NOT in the pan.
Wiki User
∙ 12y ago
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When you have hot water coming out threw the top blow off valve what does these mead?
Blow off valve faulty or expansion tank needed at water heater.
Where is the heater core valve on a 1997 chrysler cirrus?
It does not have a water flow valve in the heater plumbing.It does not have a water flow valve in the heater plumbing.
Water temp and elements for hot water heater seem fine. Why is water heater discharging water through pressure valve usually after extended hot water use?
One possible reason for the temperature/pressure (tp) valve to start leaking may be from expansion of the water as it is being heated if there are check valves in the water system this is sometimes the culprit .In most water systems there is plenty of room for expansion in the distribution piping and service line and private well systems have a pressure tank that can absorb the expansion. You may have to add a small expansion tank to the water piping at the heater to solve this problem. hope this helps. Bob
Why do some hot water heaters need thermal expansion tanks and others do not?
I believe that the larger the hot water tank, the greater is the need for an expansion tank. Water expands as it is heated. This is why all hydronic heating systems require an expansion tank. A water heater would need expansion tank when a backflow preventer or check valve is installed in domestic cold water line directly after water meter. Some areas require backflow prevention, but not all. Have to check with local plumbing authority about that.
Is it necessary to have both an expansion tank and a pressure relief valve on a hot water heater?
You must have a pressure relief valve. I believe it is code nationally. I don't think you can buy a hot water tank w/o one. Expansion tank needed also if water meter has backflow preventer, check with local water authority if it does.
Can you hook up and rely on the Temperature Pressure Relief valve for a new electric hot water heater to a drain or do you really need an expansion tank?
Depends on your code. If you have a PRV or, as you would say, pressure reducing valve on your water supply to your house, you need an expansion tank. If your pressure is above 80 psi, you need a PRV AND an expansion tank.
Why would the water heater cold water supply and the hot water exit both be hot?
There should be a non return valve on the cold water side of the hot water tank. When there is no non return valve the water in the tank heats up and expansion of the water will cause it to travel backward up the cold water pipe thereby equalising the waterpressure normally this expansion would find its way out of the safety pressure valve. So it sounds like the non return valve needs fitting or replacing.
What is a TNP valve?
A TNP valve is a temperature and pressure valve found on a water heater.
Where is the expansion valve on a 98 Honda Accord?
The expansion valve, on your 1998 Honda Accord, is located just before the thermostat housing. You can follow the water hose from the radiator to the expansion valve.
Is an expansion tank required for a tank less water heater?
No, an expansion tank is not required.
What would you bring to?
a heater a thermal jacket water and food
What is the solar thermal hot water heater?
1 hour
