Hive heating boiler query

Anonymous12

Hi, I’m interested in the hive heating system. Apologies if this has been covered before.

We have a Baxi boiler with a clock timer. There is a switch on the wall to turn on or off the radiators. Turn them off during the summer and the water is still heated. Turn them on and water and radiators are heated together.

How would this work with the hive system? During the summer when I have the radiators switched off how would I get it to turn on the boiler to heat the water if the hive thermostat is taking the temperature in order to decide whether to fire the boiler or not?

Or am I missing something?

Thanks.

DGOBS

Hi, what your system is lacking is feed back from the motorised valve that the wall switch controls.

If you only have a single switch to control all the central heating, there may (given the wiring is accessible) be a workaround.

Using a dual hive receiver, the channel for hot water can be used to signal the boiler to activate, while the channel for central heating can be used to replace the single switch and control the ch motorised valve. Once installed Hive must then be set into gravity mode, this will mean when calling for hot water the boiler will fire up, but valve will stay closed, but in gravity mode when calling for central heating both hot water and ch come one, so boiler fires up and ch valve opens.

This is not ideal, but can be made to work, but yo will always fire to hot water in both modes which reduces potential efficiency, the correct way would to have another motorised valve fitted tot he hot water circuit and have both valves micro switches wired back to control the boiler (known as a Y-plan heating system)

Anonymous12

Hi DGOBS,

Thank you so much for your detailed and informative reply. It really helps. Thanks a million.

DGOBS wrote: »

Hi, what your system is lacking is feed back from the motorised valve that the wall switch controls.

If you only have a single switch to control all the central heating, there may (given the wiring is accessible) be a workaround.

Using a dual hive receiver, the channel for hot water can be used to signal the boiler to activate, while the channel for central heating can be used to replace the single switch and control the ch motorised valve. Once installed Hive must then be set into gravity mode, this will mean when calling for hot water the boiler will fire up, but valve will stay closed, but in gravity mode when calling for central heating both hot water and ch come one, so boiler fires up and ch valve opens.

This is not ideal, but can be made to work, but yo will always fire to hot water in both modes which reduces potential efficiency, the correct way would to have another motorised valve fitted tot he hot water circuit and have both valves micro switches wired back to control the boiler (known as a Y-plan heating system)

DGOBS

No hassle