PIPING SECTIONAL RADIATORS

WAYNE PEINE

AM I RIGHT IN MY THINKING THAT THE SUPPLY TO THESE STYLES OF RADIATORS ARE THE OPENING AT THE TOP VS THE BOTTOM ONE SINCE THIS SYSTEM WAS INSTALLED LONG AGO PROBABLY BE FOR PUMPS WERE IN USE WHEN 2 PIPE GRAVITY SYSTEMS WERE IN USE, THEN RETRO FITTED WITH NEWER BOILER AND PUMP SYSTEM 15 YEARS AGO? ALSO THE TOP ONE IS THE ONE WITH THE GLOBE VALVE ON IT!
THE REASON I ASK IS THE HOUSE I AM WORKING ON WAS MOVED IN FROM ANOTHER LOCATION, AND THE MOVING COMPANY CUT ALL THE PIPING OFF AT THE BOTTOM OF THE FLOOR JOISTS WITH OUT ANY MARKING, AND THESE OLD SYSTEMS ARE MY WEEK POINT!

paul lessard_2

let me get this straight.....

These guys moved away and took their radiators? that's my kind of customer!!!! Am I just confused?

Steamhead

They picked up the house and moved it

to another location. I salute them for doing this instead of tearing it down.

Wayne, you are correct. On an old hot-water system with radiators connected top-and-bottom like this, the hot water MUST come in thru the top. If it comes in thru the bottom, it will rise thru the first couple of sections and the rest of the rad will stay cold.

Watch out, though: If the return pipe is smaller than the inlet pipe, that's a Vapor system which is a whole different thing.

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Mark J Strawcutter

What's that?

on the return, Steamhead? A valve hiding behind the 45 on the supply? Or just a T with a plug in it?

Mark

WAYNE PEINE

no they picked up the whole house and moved it. cutting off the supply & return pipes below the floor!

WAYNE PEINE

thanks for conferming my thoughts on this kind of system! this is the system less thermo valve i am dealing with!!

Steamhead

That's where

the line to the old open expansion tank was connected- just a T with a plug. I never got around to repainting the trim in that room, so the plug sticks out a bit.

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