Should Water Tank Feel Hot if Water Heater Working?
I have a big water tank in my garage. We have issues with the water heater. IF IT IS working right, should the water tank feel hot to the touch? Or, is it insulated enough that you wouldn't feel it from the outside?
- elhighLv 75 months ago
My own water heater is just a few steps away, so I got up and confirmed what I already knew: it feels about the same temperature as my refrigerator.
I'm a pro handyman and watch over several different kinds and sizes of water heater, from residential models in the 40-60 gallon range, all the way up to the big mamma-jamma with 1.8MBtu and 800 gallons of storage. They're all well insulated, and all feel about room temperature on their tank surfaces.
But just try touching - carefully - the output pipe.
- Aussie DevilLv 65 months ago
if the tank is well insulated it will not feel hot
- Anonymous5 months ago
Open a hot water faucet and feel the outlet pipe after 30 seconds. It should be hot to the touch.
- TallPaulLv 45 months ago
Mine feels hot to the touch especially when steam is coming off the top.
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- EdwenaLv 75 months ago
The sides of the tank should be room temperature because it is well insulated. Feel the hot water pipe on top of the tank. It will feel warm. The cold water inlet should feel normal. Turn on the hot water tap in the house and feel the hot water pipe on top of the water heater. It should be really hot.
- TommymcLv 75 months ago
It depends on the age of the tank and how hot the water is. Newer tanks have a lot more insulation to keep their Energy Star rating. My one year old heater in the basement is cool to the touch. That said, the hot water output pipe and the safety valve should feel warm if the heater is working.
- Mr. PLv 75 months ago
I presume this is a hot water storage tank.
If it only has the factory spray foam it will still feel hot and the insulation is just the bare minimum.
You can usually box it in with plywood and fill up the space with rockwool to superinsulate it and it will save you money. You just have to be aware that cables should not be in the insulation (as they may not be rated for that), and any pressure release valves are clear - and may need an extension. Also be nice and make it easy to service any thermostats or valves in there. There are products that keep the insulation sealed in bags so it is easier to work with and less of a hazard if you need to remove it.
Only use high temperature insulation - like rockwool, and seek advice before starting work to do this.
- Anonymous5 months ago
Depends somewhat on the temperature setting. Maybe the outlet pipe is another way to check.
- L. E. GantLv 75 months ago
Even with the best insulation, some heat will always get through.
However, with a water heater tank, it should not be particularly hot -- a bit warmer than air temperature, but nowhere near the 60 to 70 degree (Celsius) that the water is actually at.
- Bone AloneLv 75 months ago
Our tank gets warm or hot to the touch but it’s an old tank. Not much insulation in the old ones.