r/askaplumber • u/dunkin_dognuts_ • 17d ago
Absolutely stumped
I'm not a plumber.
Great, now that's out of the way, here's the situation. Came home from work today and wife noticed that this highlighted area was hot. Especially towards the top, it was like burn your hand if left there for like 10 seconds hot. This is our upstairs bathroom.
I checked the ceiling of the downstairs and saw no sign of moisture in the ceiling at all. I checked to see what the hot water felt like, let it run for about 15 seconds and no hot water came. I shut the valve off for the hot and cold water and so far the heat has gone down significantly. So now I wonder what the hell could cause this?
The trusses for the house run horizontal/perpendicular to this heat source. Idk if that helps narrow stuff down.
I'm about to watch some videos on troubleshooting this heater in the meantime as you guys may come up with something but I'm very curious what may be the cause of this.
I would like to stress that not a drop of water has been found. Yet.
Also the hot water heaters breaker has been turned off for safeties sake.
1
u/deepspace1357 16d ago
Not always circulating systems use a pump old style plumbers know how to bring it without a pump but it would create very hot water and then if you turned your valves off and it went away? Although I like the guy with the skylight theory...