Best Of
Re: 14-year-old son of former New York Yankees player Aaron Gardner, died of carbon monoxide poisoning
Had a feeling. Jim Davis, Captain CO told us in his classes many moons ago, to NEVER travel without your personal CO monitor. Mad Dog
Re: sight glass issue
turn off the cold feed to the dhw, leave the hot water side valve open and leave a faucet open somewhere. That will keep no pressure on the tankless coil. If it still rises it is the manual feed valve that isn't holding. It is likely you can hear it if it is leaking that much too. If there is a union above the water line but after the valve you can open that and see if water is running out there as another test.
mattmia2
Re: When did pressure relief valves become standard?
As far as pressure relief valves, they weren't needed on hot water systems until they went to closed compression tanks from open attic tanks.
mattmia2
Re: steam vs vapor system
Exactly. However I do need to do some maintenance to the boiler over the summer when it's not running. Needs a new combustion chamber and then I want to have somebody come in and do a combustion analysis and efficiency test the last time that was done was 2012
The Duke Mansion Mystery
Not long after The Lovely Marianne and I started that little business of ours in 1989, a caretaker called and asked if I would be willing to consult on a problem hot-water-heating system in what he claimed was “the biggest house you will ever see.”
Re: Rococo Dining Room Radiator Install- Why Are These So Rare?
Yes..Matt..perhaps...but I've seen many of those roundees in our NYS Armories...Ive yet to see the Turkey Warmer in the flesh...Gotta git me one..& put in me dining room. The other thing is the round ones need quite a bit of floor space. Mad Dog
Re: She canna take any more, Cap'n! She's gonna blow!
Dammit Jim, I'm a plumber, NOT a Doctor…… Eric, you are way OVER thinking this. It's your brain and you can use it how ever you want, but your time is better spent on real problems and solutions.
Isolate the tank. Put a hose on the drain cock and open it. Once pressure drops to zero, which will happen in short order, on the bottom of the red Airtrol fitting is a brass fitting, It's an air vent. Grab a straight screw driver. Open it, and it will let air into the tank and will allow the water logged tank to drain. Don't just let a little water out. Drain it COMPLETELY. This will take maybe 10 minutes… Once completely drained, close the drain cock, un-isolate the tank and allow the auto make up valve to stabilize pressure at around 12 PSI. You're done. The tank WILL be half full of water and half full of compressible air (cushion). Clean up the mess and go back to living life without having to worry about your system.
BTW, the ONLY thing I've added to what everyone else has already said numerous times, is to use the Airtrol vent to expedite draining the tank. You could stand there for hours waiting for the tank to "glug" itself to empty, but your time is better spent doing other things… Like watching old Star Trek shows :-)
Enjoy.
ME
Re: Weil-McLain Ultra 230 Lockout – High Supply Temp
That piping and wiring is atrocious. Not exactly closely spaced Tee's there.
I can't find the PRV, but find a way from it, to the boiler. The boiler is air locked and must be purged. If you need to raise the weight on the Flo valve and purge backwards, so be it. You could also slowly introduce domestic cold from the drain on the bottom of the boiler and find and easy loop to purge through.
HVACNUT