Best Of
Re: Loud banging from wall (with video)
That's not air. That's some nasty expansion. Open the wall.
HVACNUT
Re: Black soot around gravity heat registers
Please check back in @anne29b. But turn off the gas and electric to the furnace first.
HVACNUT
Re: Base Ray Installation
Base Ray is the best. You need special tools to assemble it. Some supply houses rent them. You will have to check around. If you find a supply that sells Burnham Base Ray they can probably help you out.
Look for the install instructions. They want the wall behind the Base Ray insulated and you need the piping instructions. Base Ray is assembled with push nipples.
If you can configure it with standard lengths, then no assembly will be needed
Re: Is Dbl-check/backflow preventor required Kings Park Long Island on residential irrigation system?
Whether it's required or not, it would be a good idea to have one…
Re: Compression fitting going from lead to anything modern (e.g. steel/brass)
either the hose wasn't removed or they were installed incorrectly. it isn't really possible for water to stay in there. or they didn't install them with the seat in conditioned space.
mattmia2
Re: Co-op in Brooklyn looking for steam consultant, 120 unit, single pipe, 1950s building
let’s hopefully not base our opinion about the entire grid on one person’s reported voltage measured one day
Re: Co-op in Brooklyn looking for steam consultant, 120 unit, single pipe, 1950s building
how much gas is lost between the well and the burner on your furnace/boiler?
mattmia2
Re: Compression fitting going from lead to anything modern (e.g. steel/brass)
The only time I saw an issue with a Woodford was when a family member left the hose attached with a nozzle on the end that was closed. It blew ice out of the vacuum breaker, and yet all of it still works fine.
I currently have 4 of them in service, none of them have issues even in below 0F temps.
If they're pitched correctly and the proper length to get the valve far into the heated space, they can't freeze.
ChrisJ
Re: Co-op in Brooklyn looking for steam consultant, 120 unit, single pipe, 1950s building
I agree! City agencies are also blindly pursuing 100% electrified heating in some buildings to meet LL97 goals, sometimes simply because (of politics) there is funding for new split systems and no funding for maintenance of existing steam systems. I think there is a lot of improvement to be made to building envelopes first, and maybe eventually our goal can be 90-10 or 80-20 gas-electric, which would be a massive improvement already, but 100% with no backup seems like a recipe for a couple months every year of low efficiency, high bills, and burst pipes…
jgurin
Re: Black soot around gravity heat registers
Those "Lau Vent" stack dampers failed after some time. And were not good for horizontal position. IMO.
You may have bad heat exchanger, but it could be only plugged exhaust vent causing flame/gases to roll out of the draft hood.
JUGHNE