Best Of
Re: Old high school 2 pipe steam boiler with trane fin blower units.
the vent is to allow water to enter and exit the condensate tank. as @Jamie Hall said, a bad trap somewhere is letting steam in to the returns. that will kill the pump in the condensate tank among other things. obviously each univent and all other emitters have a trap on it and those all need to be good.
the 1960's section with the univents instead of radiators or convectors was the new section of the school…
mattmia2
Re: Relocating a 1-Pipe Steam Radiator: Cast Iron vs. Brass Fittings?
You are aware that you can't just replace the angle valve with a straight one? That you will also need to replace the spud in the radiator to match?
Re: "Duel fuel" Indirect
I think Bock still offers them in both single and dual coil with element
Bock manufactured the Caleffi solar tanks, they are a great heavy wall steel, glass lined tank
hot_rod
Re: Burnham KV 85
Now find the leaks that made the V85 rot out. Bad vents, leaky valve packings, underground return lines.................
Re: Relocating a 1-Pipe Steam Radiator: Cast Iron vs. Brass Fittings?
You can use brass or cast iron or malleable iron. They don't make street elbows in cast iron…never did. They do make them in malleable iron. I would use anything but brass there is no need to use brass as it is more expensive. As @JamieHall said pitch is important. You may have to raise the radiator up on blocks to maintain the pitch.
Re: Relocating a 1-Pipe Steam Radiator: Cast Iron vs. Brass Fittings?
You can mix brass and iron. Not quite sure I'm visualizing how you plan to pipe this so as to use the existing valve and maintain drainage.
Re: A heating challenge!
A roof top packaged heat pump might be the simplest option. It will use a heck of a lot less electricity than a resistance boiler and gets you AC for free. The big names (Daikin, LG, Carrier, York) all make a version in their light commercial product lines, you'll have to see which one is locally available and works better in cold weather. Probably one unit for the shop and one for the office to separate air to keep dust out.
Kaos
Re: A heating challenge!
Hi, I assume there is a loading dock with big roll up door? If so, is that door kept closed most of the time? If it is, there is probably a lot that can be done with the shell of the building to make it more efficient. With that done, or even just designed, you can get an idea of how much heat you'll really need. Do take internal gains into account!
Yours, Larry
Re: Type of fixture ?
After you turn the water in the basement off….with the knob off and sliding off the chrome plated tube, you must be sure to remove the hair pin…horse shoe shaped clip from the valve.
That white nylon tool usually comes with the new cartridge. Rotate the cartridge around and back and forth. You can put a screwdriver shaft thru the hole in the cartridge shaft to pull as you rotate.
I then take a 3/4" copper fitting brush to clean out the body.
Then flush it by turning on the water for a few seconds.
I have someone hold something like a vac cleaner hose over the body to avoid a mess and get a longer flush.
Don't forget the hair pin clip.
JUGHNE