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Re: SUPER PRO Solderless Bonding
Have not tried it, would have to have absolutely no other alternative to try it.
Call me old fashioned I guess, soldering is tried and true, press is tired and (so far) true, properly sized no-hubs on Cu waste lines work just fine for me.
Can't imagine trying to explain this to an inspector.
I cannot imagine trusting it on anything as high pressure as a refrigeration line.
Call me old fashioned I guess, soldering is tried and true, press is tired and (so far) true, properly sized no-hubs on Cu waste lines work just fine for me.
Can't imagine trying to explain this to an inspector.
I cannot imagine trusting it on anything as high pressure as a refrigeration line.
delta T
0
Re: Pickup Factor...
@BobC I thought it was Obama who was born in Africa, those guys were born in 'MericA.
Re: Sizing a Two Pipe Steam Boiler
Bob,
Here's an easy way to look at it.
You have 44,400 btu/h worth of radiation.
You are looking at installing a boiler with an output of 93,000 btu/h
Do you think that piping will waste 48,600 btu/h worth of heat? More than the installed radiation?
You're creating steam which needs to be condensed back into water at a certain rate, anything slower will build pressure. Some guys like some pressure, but too much is too much.
Go with the PEG075EID. That's even oversized in my opinion if all of the piping is to be decently insulated.
Vent your radiators reasonably slow and vent all of the mains fast. You'll be fine.
My opinion is the theory that you have to heat all of the piping and radiators at once when cold is false. You first heat your boiler, next the header, then it slowly heats all of the mains and run outs, once that's done, it starts filling the radiators, section, by section. By the time any radiator gets steam, all of the piping should already be heated and only losing what it looses through the insulation, nothing more.
I'm currently running a 10% pickup factor. 120,000 btu/h input, 104,000 btu/h output connected to 392 sqft of radiation (94,080btu/h). I'm not suggesting you should do this, just trying to put it into perspective.
Here's an easy way to look at it.
You have 44,400 btu/h worth of radiation.
You are looking at installing a boiler with an output of 93,000 btu/h
Do you think that piping will waste 48,600 btu/h worth of heat? More than the installed radiation?
You're creating steam which needs to be condensed back into water at a certain rate, anything slower will build pressure. Some guys like some pressure, but too much is too much.
Go with the PEG075EID. That's even oversized in my opinion if all of the piping is to be decently insulated.
Vent your radiators reasonably slow and vent all of the mains fast. You'll be fine.
My opinion is the theory that you have to heat all of the piping and radiators at once when cold is false. You first heat your boiler, next the header, then it slowly heats all of the mains and run outs, once that's done, it starts filling the radiators, section, by section. By the time any radiator gets steam, all of the piping should already be heated and only losing what it looses through the insulation, nothing more.
I'm currently running a 10% pickup factor. 120,000 btu/h input, 104,000 btu/h output connected to 392 sqft of radiation (94,080btu/h). I'm not suggesting you should do this, just trying to put it into perspective.
ChrisJ
1
Re: Getting Ready for Gas in Central CT
My customers are quite happy with my installations. When you take away options sight unseen you are wrong. When this is a job and not a hobby for you let me know.
Re: Getting Ready for Gas in Central CT
What defines the wrong boiler? As none of us have seen the job or the heat emitters yet how can we determine what the right boiler is? Short cycling is easily addressed with proper boiler sizing and buffer tank if necessary.
Re: Getting Ready for Gas in Central CT
Not for the system in @Brewbeer 's house.
Re: Getting Ready for Gas in Central CT
You are wrong Hat. But that is your choice.