zone valve

scott jacobson

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

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

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

trv

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

Heat

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....