water heater fill up

[alesiav]

Where do I find the water heater fill opening. The water heater is under the sink in the bathroom. How do I fill it up?

[wildtoad]

Unless you have a valve turned off, it should fill automatically when ever you either hook to a water supply or turn on your pump. Open a hot water faucet and if water comes out then the heater is filled. If you get air coming out the heater may still be filling. If you get nothing perhaps the water inlet to the heater is closed.

[K-Star]

That is correct. The Hot Water Heater (HWH) is supposed to fill automatically when the water is turned on. If yours is not, you may have a winterizing bypass setup installed. This is a series of three valves to divert water around the HWH, thus bypassing it. You need to insure that these are in the NORMAL positions; not BYPASSED. These valves are typically installed right next to the HWH.

Also, when the HWH fills up, you may get some trapped air that could prevent the gas valve from opening to heat the water. With the water turned on, open a hot water faucet in the unit. This will allow air to escape the HWH.

[tvman44]

It will fill automatically.

[alesiav]

Thank you for your help. It works

[first5thwheel]

I have a question regarding a water heater seeing you all discussed this. My question is have any of you noticed that the water stays extremely hot for days after turning off the switch. I have a 6 gal propane water heater that is incased in Styrofoam insulation and I do not leave the water heater on when I know I am not using the hot water. What I have noticed is the water stays hot for days after. We do not use much hot water or take long showers so I am guessing that is why. Have any of you noticed your water is retaining its heat for days after? Personally, I think it is great, but I wanted your feedback on the matter.