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ALAN@

BATTY
BATTY Member Posts: 4
in Strictly Steam
HOW CLOSE CAN MAIN VENTS BE TO STEAM BOILER? ONLY HAVE APPROX 5FT ON EITHER SDE OF BOILER BEFORE THEY GO INTO SMALL CRAWLSPACES THERE ARE 2 MAINS APPROX 15FT LONG CANT GET TO ENDS

Comments

  • Paul48
    Paul48 Member Posts: 4,469
    ?

    One-pipe system with dry returns?
  • Charlie from wmass
    Charlie from wmass Member Posts: 4,377
    They need to be at the end

    if they are close to the boiler on the supply side they only vent the air to that point. Do you have returns coming out of the crawl space or is it a counter flow system with no return?
    Cost is what you spend , value is what you get.

    cell # 413-841-6726
    https://heatinghelp.com/find-a-contractor/detail/charles-garrity-plumbing-and-heating
  • BATTY
    BATTY Member Posts: 4
    batty

    IT IS A ONE PIPE SYSTEM WTH GRAVITY RETURN AT THE END OF MAINS THERE IS A SMALLER DIA PIPE OFF THE BOTTOM THAT RUNS OUT OF THE CRAWL SPACE DOWN TOWARDS THE FLOOR TO BOILER (DRY RETURN TO WET RETURN?) CAN I VENT THIS PIPE AS LONG AS IT"S ABOVE THE BOILER WATER LINE?
  • Charlie from wmass
    Charlie from wmass Member Posts: 4,377
    Yes that is the pipe you

    want the vent to be on. 16" to 18" before the first vertical drop if you can get it. Closer to the crawl space will keep the return slightly cooler then closer to the boiler. You also need to make sure it is high enough where the water line will not reach it when the boiler is under pressure. 28" above the water line or higher for most systems is what I would do.
    Cost is what you spend , value is what you get.

    cell # 413-841-6726
    https://heatinghelp.com/find-a-contractor/detail/charles-garrity-plumbing-and-heating
  • BATTY
    BATTY Member Posts: 4
    edited December 2012
    alan@

    THANKS FOR THE INFO WOULD LIKE TO DO SAME ON NEIGHBORS ALMOST SAME SET UP BOTH 3 STORY ROW HOMES BUT HIS IS LITTLE DIFFERENT WOULD LIKE TO MAKE SKETCH OF IT (A PICTURE WOULD BE TO BUSY WATER PIPES ,WIRES ,ETC IN THE WAY)BOTH ARE 1/12 MAINS PITCHED AWAY FROM BOILER WITH 1" DRIPS WITH THE LONGEST MAIN APPROX 20 FT AND THE SHORTEST APPROX 5FT HOW CAN I SEND SKETCH PROBALLY  NOT TILL EARLY NEXT WEEK ,THANKS
  • Paul48
    Paul48 Member Posts: 4,469
    edited December 2012
    Look

    at the first picture for a 1-pipe system. In your case keep the vent as far back towards the crawl space as possible.  http://www.gogeisel.com/geiselonline/support/Hoffman/Steam_Vents/Basic_Steam_Heating_Systems_1_2_Pipe.pdf
  • BATTY
    BATTY Member Posts: 4
    PUTTING GUAGE NEAR PRESSURETROL

    THANKS FOR THE INFO LAST WEEK I WANT TO ADD GUAGE NEAR P-TROL DO THE NIPPLES ,TEES ETC. AFTER THE PIGTAIL HAVE TO BE RED BRASS? ALSO HOW DOES STEAM ENTER P-TROL IF MOUNTED TO LWCO?
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