Best Of
Re: 3/8" vs 1/2" to panel radiators
Pipe is always sized by the amount of flow you intend to move through it.
When doing headers for multiple boilers, loads, the pipe sizes for the total gpm at around 2 fps.
If you do a 2 or 3 pipe buffer, the connection at the tank needs to be sized up, as it is the hydraulic separation function. In this example at least 1-1/4" for the 10 gpm requirement.
The EngineeringToolbox has good flow sizers. for
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hot_rod
Re: 1920s Two-Pipe Direct Return System?
Thanks Hot Rod! I will look into the micro bubble type air purger as well.
mattmia2, Here's a photo of that stoker. I'll see if I can find any additional info on it!
Kpasco
Re: Getting rid of the old boiler sections
$.07/pound. Back in the 70s when I started we got $.01/pound.
You got enough to by the crew breakfast, that's about it.
Re: New House, New Problems- Introduction and seeking help on new to me steam
The old runout that used to go to the 1st floor kitchen was cut to about 2 feet and capped. There is one radiator runout after this. This is the only easy spot to thread a vent on, so I threw my new Gorton #2 to see what happens. It takes about 6 minutes from when it first starts passing air to close, and didn't really affect anything as far as I could tell. The ideal place for it seems to be above the boiler, which is copper pipe.
The gurgling rad was just barely pitched, I added some quarters underneath and it seems like it has a proper pitch now but it still gurgles. The valve seems pretty standard.
The other rad that gurgles(1st floor entry, last in the series) has this piping artistry:
wwrenchh
Re: How to delete boiler coil and replace it with a HPWH
it doesn't need to be exactly 140, that is more of a legionella guideline temperature
Anything over the useable temperature of 110- 120, you get the extra capacity with higher tank temperature
Some plumbers run a line before the mix valve to the dishwasher
hot_rod
Re: Copper pipe radiator design
Come to think about it, why copper if I can use black pipe…
Re: Banging Hartford Loop
Steam goes down the equalizer until it hits water. The air rises up and goes out with the supply steam. If the equalizer stayed full of air it would be cooler and they are always steam hot.
Re: Slant Fin VGH150
oh, it is a mod con combi. maybe you can get the hx from a distributor or fit another hx in there.
mattmia2
Re: How to delete boiler coil and replace it with a HPWH
This is a good introduction to HPWH and some of the lessons learned so far regarding installation and performance.
HPWH will not perform the same as a gas fired tank. Nor will they perform like a tankless coil or a tankless water heater. They are all unique in the way the operate and provide DHW. It's good to know before you go.
It sounds like you may have a good application. Enough room volume and a cast boiler to grab residual heat from.
Be aware of summer use, the heat needs to come from SOMEWHERE, for the heat pump to "pump"
They discharge cool air, around 45°F. So do't place one next to your bed :)
hot_rod