Pipe two steam one header

yaswant1

Is it possible to pipe two steam radiator on same header?header is 1-1/4.

delta T

What do you mean by 'header'? A header is the horizontal section of pipe that connects to the risers (outlets) of the boiler.
1 1/4" is really small for a header, usually 2" minimum and that would be a very small boiler. Pictures may help....

Jamie Hall

Or do you, perhaps, mean "runout" when you refer to header? And even there, the answer is... probably not. 1 1/4 inch is about as small a runout as one can use, so the radiators would each have to be pretty small.

yaswant1

Sorry I meant the pipe from header connecting the radiator
Is 1-1/4”.is it possible using a tee to pipe a next radiator to heat a room?

EBEBRATT-Ed

Depends on the radiator sizes. If you post pictures and dimensions we can size the pipe.

It's doubtful that 1 1/4 can support two radiators unless they are small

yaswant1

This radiator makes the room very hot even if I adjust the vent

yaswant1

Other room is 90sq ft

yaswant1

One room is 180 sq ft

yaswant1

Radiator will be 2’ apart

Jamie Hall

We need the EDR of the radiators -- not the square footage of the room.

Steamhead

@yaswant1 , where are you located?

yaswant1

Jamie the EDR is 28.located in nj

yaswant1

yaswant1

Basics diagram what I would like to do,if possible

Fred

The present radiator is 28 EDR. Will the new one be the same? If the new one is larger, it will likely steal the steam from the other radiator as it will likely allow steam to flow more easily into it. A 1.25 pipe can support about 55 EDR (IIRC) so it may work if both rads are the same size and the venting is reasonable the same. We've seen cases where it works in some configurations and doesn't in others. It's kind of a crap shoot.

yaswant1

The new radiator will be smaller fred

Fred

yaswant1 said:

The new radiator will be smaller fred

In that case, the 1.25" pipe should be able to support the load. You may have to slow the venting down on the larger radiator to get steam to both but it should work.

yaswant1

Thank you Fred for your insight and help!

Danny Scully

@yaswant1, I doubt you’ll be able to acquire a twin elbow as you’ve drawn. You can use a tee, but be sure the steam enters either “run” of the tee, but not the “bull” of the tee. And, if you can source a twin elbow, let me know

yaswant1

I was looking for the double elbow over the internet but can’t find black pipe they have in pvc.but I was thinking about using the tee.thanks Danny.

Jamie Hall

Danny Scully said:

@yaswant1, I doubt you’ll be able to acquire a twin elbow as you’ve drawn. You can use a tee, but be sure the steam enters either “run” of the tee, but not the “bull” of the tee. And, if you can source a twin elbow, let me know

Mightn't he be better served, @Danny Scully, using a T, entering the bull, then two very short nipples at the ends of the run, then 90s to get the final runouts to the radiators? Only way I can think of two make sure that one side or the other isn't pitched the wrong way... Or he could do it as you've suggested, but again creating swing joints to get the pitch.

Danny Scully

“I don’t think so @Jamie Hall” said as Al to Tim in Home Improvement

Fred

@Danny Scully and @Jamie Hall , I suspect that is a nipple coming out of the floor and the actual riser is in the wall below. Couldn't he take that nipple out, add a short/close nipple and a wye and then nipple/elbow in both directions?