Best Of
Re: Boiler running without a call for heat
To understand how a thermostat works you need to understand how a light switch works. When the switch connects the two wires that are connected to the switch, the circuit is completed and the light will illuminate
Same is true of a thermostat. When the room temperature drops the thermostat is a switch that turns on the heating system. When the room gets hotter, the thermostat turns off the switch.
If for some reason you get the wires to connect when the switch is open (OFF) The lightbulb does not know the switch is off. The light bulb only knows that the electric circuit is complete. I would look for the wire or thing that is completing the circuit to the zone valve that is open when that zone thermostat is not calling
HVAC PRO: "How long have you experienced this problem?"
Customer: "Since last Thursday"
Wife: "The day after you hung the new television on the wall"
Customer: "What does hanging the television on the wall have to do with the heater?"
HVAC PRO: "Let me look at that television bracket on the wall"
If you don't get it by now, then you need to hire a pro before you point the parts canon at the problem.
Re: ASME requirements
Finally spoke to the NJ state inspector.
He is calling out the NJ version of National Standard Plumbing Code as to why they are forcing us to use ASME rated tanks on this job. Since the combined input of the multiple boilers is well above the threshold of 200,000 BTU (might have been 250,000) we must use ASME tanks. This will add a significant cost to the owner, but we have no choice in the matter. Thankfully, the owner understands the issue and trusts us to do the right thing.
Just learned non ASME tanks are in stock. ASME rated tanks are eight weeks out…
Re: repairing a neglected chimney, flue, thimble, liner, and leaks
You need a chimney expert to inspect all of that. It is coming apart because water is leaking in through that failed masonry that someone tried to glue together by parging it. I suspect at very least it needs to be rebuilt from the roof line.
Re: Where can I find Pennsylvania code reqs for residential basement oil tanks?
Oil Tech Talk...Alan Mercurio...The Guru of things heating oil...he's in Penna too! Great guy. Mad Dog
Re: some help/advice, pressure shut off, pigtail
A short piece of the coiled outer sheath from a bicycle or lawnmower cable bent out at the working end to have a slight auger hook may act as a small custom snake. You could use a drill motor to turn it.
If the old pigtail is too much problem a new one with a few new pipe fittings could probably be added here (Red arrow in picture) assuming that tapping goes into the boiler, looks like that plug may come out easier.
If you choose to service the LWCO float assembly, Gasket paper can be found at most auto parts stores. On my McDonnell & Miller #67 LWCO I made the gasket from Red silicone sheet material so it is reusable and no more scraping old paper gaskets. Once set up to do so maintenance / inspection is easy.
Re: Single Pipe Steam Boiler Replacement & Piping (Unusual header?) Advice for Amateur
Thanks for all your thoughtful comments/suggestions, the electrical sticker was from adding circuits for miniplits. I think the inspector spent a grand total of 20 seconds "inspecting" things and didn't say anything. The current drip pipe is 31 inches back from the box. I like the idea of re-routing it under the box for safety. I'll ask for it to be included in the estimate although I'll likely end up doing it myself.
Re: Boiler Heats House and Pool
I have since found out that copper tubing is encased in the gunite around the pool, so there’s no chlorine to worry about.
Interesting that it’s only a 007 circulator. My guess is that the 1” tubing leaving the mechanical room goes to a copper manifold with 1/2” tubing circling the pool.
Hot water cast iron radiator not heating
Hi, can anyone advise me on how to proceed. The plumber disconnected the radiator form the input and output valve bled the system that repeatingly. They also kept feeding it water from the furnace. They other radiators are working fine. Can anyone assist me in determing the problem. The plumber says to get a new radiator which I do not agree with.
Thanks in advance
Re: Replacement for Old School Dual drain slop sink
I still have the same one as a single. Only had to replace the lead drain about 20 years ago.
Re: Actual Performance of Cold Climate Heat Pump in Upstate NY
@Kaos said: "A properly sized modulating heat pump will run much quieter and deliver more event comfortable heat than any fuel burner I've seen."
That might be true when compared to a forced-air furnasty, but it will never be more comfortable than a well-operating steam or hot-water system.




