hi i,m in process of fitting trv valve to an existing rad any ideas to what way it should be ie flow/return and how to tell if both existing valves turn to shut off water which 1 is flow and which 1 is return 
-
Looking for a smarter way to manage your heating this winter? We’ve been testing the new Aqara Radiator Thermostat W600 to see how quiet, accurate and easy it is to use around the home. Click here read our review.
how to fit trv to existing rad what direction it should be
- Thread starter leedempster
- Start date
TRV valves should be put on the flow unless they are bi directional so if you are not certain what type of valve it is put it on the flow to be safe. The flow pipe is the one wich heats up first when the radiator is turned on and this pipe will always be hotter than the return.
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
