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zone valve

I have a loop system with one pump can i get a get a zone valve to control one of the base boards in one of my rooms. Also i am taking out a radator that has three tubes going thru the fins will this have any affect on heat output since the one i want to put in only has one tube the one i am taking out is from the mid 50's. thanks scott


  • Kal Row
    Kal Row Member Posts: 1,520
    two things

    first you need to find the BTU's of the old one befor you put in the new one - or better yet do a heat loss calc on the room

    second - better then a themostat, would be a Themostatic Raditor Vlave (TRV) which controls how much water goes into the fin coil and how much bypasses it based on the air temp - in fact - you should install TRVs on all your baseboards - saves a bundle in heating costs
  • Dale
    Dale Member Posts: 1,317
    Loop system

    If you have a loop system then a zone valve anywhere would stop flow in the whole zone. If you want,you could add a one sized smaller pipe the length of the rad then you could use diverter tees (monoflo) and a trv or elect valve for that one rad.There may be a picture of this in one of the hot tech topics on the left.
  • scott  jacobson
    scott jacobson Member Posts: 7

    I looked at trv's what kind is good to buy and were ?
    ps i dont have a loop system just one pump
  • Big Ed
    Big Ed Member Posts: 1,117

    Sounds like you pulled out a convector.Convectors throw out alot more heat per foot then baseboard...You most likely have a monoflow system unless it's a rare spaghetti system.If you have one pipe loop running around the house and the convectors are teed of that loop you have a monoflow. You really need to know what your doing before you monkey around with it.beware one false move and it would affect the rest of the system....Don't slow the flow....
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