Thermostatic Radiator Valves

andrew_3

I installed them in 3 homes in the UK and never had a problem with cold spots on the rads. The rads were modern (Myson I think) and supper efficient. If the rads are in series you need a bypass

too hot

Thermostatic Radiator Valves

These seem like a terrific idea (see prior posting), because they can control heat room to room where there is a thermal imbalance (so long as the room with the thermostat is the coolest).

A Honeywell valve and actuator pair costs close to $100.00 in the US, but more like $20 in England, where these are legally required. My questions to the experts: do these work well? Are there tricks for installing them? Are there any drawbacks. Any preferred brands?

Does the whole zone have to be drained to install one radiator valve?

Thanks,

Don Dada_2

I!

Not to seem rude, but if you dont know if you have to drain the zone to change a radiator valve, you probably shouldnt be attempting to do this work. Yes, the zone must be drained(assuming its a hot water system) Call an expert.Don

Arthur

Thermostatic rad Valves

Just remember that a characteristic of Thermostatic rad valves is a cold bottom of the rad, As the room temperature get almost to the set point of the valve the valve will be closing down and allowing so little water though that the botom of the rad will get cold before it flows back out the return valve. They are not sudden death like a electric thermostat which is either on or off no inbetween like the TRV