Is it safe for the boiler if I have a smart radiator valves fitted to all my radiators?

I am thinking of installing smart radiator valves to all my radiators but my plumber says that is a bad idea and risks overtemping the boiler. Because if they all close off, the boiler could get damaged. It appears I do have an auto bypass valve fitted to the boiler system, so I can’t see the problem. He says you should not have a TRV in same room as a thermostat too. I don’t think he understands how Tado works.

I’m running a smart thermostat in the hall and have smart radiator valves in all rooms except for the bathrooms (normal rad valves fitted to towel radiators and fully open). The hall has a normal radiator valve which I am replacing for a smart radiator valve, so I will have both a smart thermostat and smart radiator valve working together there.

Should I hold back from installing smart valves in all rooms? Or should I leave the bathrooms without smart valves and use them as bypasses for the boiler in case all smart valves are closed off. What have you guys done?

These pictures show the set up of system with what I think is an auto bypass valve fitted. Apologies for them appearing stretched. Thanks



Answers

  • You are correct, you do have a bypass valve (assuming it is set correctly) this does allow you to fit a full Tado radiator valves to your system, your plumber is also correct when he says you should leave the radiator where the room thermostat is without a Tado radiator stat but that being said i have personally fitted a full TRV system to my property including the hall where my Tado room thermostat is. This is because i have rooms in my house that take longer to heat than my hall, if my hall reaches 21deg my whole system shuts off leaving a couple of rooms under temperature, so i now set my TRV in the hall a touch lower than the Tado room thermostat and this allows the TRVs to control all of my rooms to my chosen temperatures.

    I would also install radiator valves in the bathrooms so as not to waste energy.

    It is important to make sure that the auto bypass valve is set correctly. if you do not have any instructions, look them up on line.


    Good luck

  • samdsamd ✭✭✭

    @NeilW

    This is because i have rooms in my house that take longer to heat than my hall, if my hall reaches 21deg my whole system shuts off leaving a couple of rooms under temperature, so i now set my TRV in the hall a touch lower than the Tado room thermostat

    You could ask support to switch from default so as to give primacy to all devices then your hall rad could use the hall stat as measuring device.

  • Thanks guys. The guys at Tado have now set my smart rad valves to call for heat separately from the thermostat in the hall. I now have a smart thermostat and smart rad valve in hall working together, so whether I set the rad or thermostat to a set point they both work together as one to do it. The smart thermostat is only used to switch water on or of outside the app, and as a reference display only for the hall temperature. I can set the temp for the hall from either the thermostat or rad confident they work together. I will probably get another smart rad valve for the landing and zone it in with the hall so they all work together as one.
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