High gas usage for boiler.

[ShaunCorbs]

Only thing I can think is the tado is trying to heat the rooms often instead of a central room stat coming on once maybe twice an hour the tado is bring it on every 2-5 mins as the room temp fluctuates / drops

185x365 67k kWh so seems in the realm of correct

 

[stevedurban]

So, what tells the boiler to start when there is a call for DHW in high summer or anytime for that matter when all TRVs are shut?.

Tado had a schedule that tells the boiler when to be on. Before I used to have it on 24x7, but after our chats it’s now just 2 hours a day.

When tado tells the hot water to be “on” - the tank stat is then monitored and when the water drops below its Temp - it fires the boiler and Opens the valve.

 

[stevedurban]

Only thing I can think is the tado is trying to heat the rooms often instead of a central room stat coming on once maybe twice an hour the tado is bring it on every 2-5 mins as the room temp fluctuates / drops

185x365 67k kWh so seems in the realm of correct

185kwh x 365 days is 67525kwh. Is that a normal Amount? Maybe I have unrealistic views? Id checked online and it seemed to suggest around 10-15000 was average to high for a 4 bed house.

 

[John.g]

185kwh/17.5 heating hours is 10.6kwh/hr so one would expect to see very high room temperatures?

 

[stevedurban]

185kwh/17.5 heating hours is 10.6kwh/hr so one would expect to see very high room temperatures?

We have the rooms around 20/21 degrees max.

 

[ShaunCorbs]

185kwh x 365 days is 67525kwh. Is that a normal Amount? Maybe I have unrealistic views? Id checked online and it seemed to suggest around 10-15000 was average to high for a 4 bed house.

Depends how long you have the heating on/ your system

That figure will be for a dumb system eg central stat

 

[John.g]

Tado had a schedule that tells the boiler when to be on. Before I used to have it on 24x7, but after our chats it’s now just 2 hours a day.

When tado tells the hot water to be “on” - the tank stat is then monitored and when the water drops below its Temp - it fires the boiler and Opens the valve.

So once again back to square one with that huge usage last summer with no logical reason as there was no demand for CH.

 

[ShaunCorbs]

185kwh/17.5 heating hours is 10.6kwh/hr so one would expect to see very high room temperatures?

If the boiler is running at 24kw tho due to the flow being enough for high fire

 

[ShaunCorbs]

So once again back to square one with that huge usage last summer with no logical reason as there was no demand for CH.

Unless there was and the op didn’t notice ?

 

[stevedurban]

Tado had a schedule that tells the boiler when to be on. Before I used to have it on 24x7, but after our chats it’s now just 2 hours a day.

When tado tells the hot water to be “on” - the tank stat is then monitored and when the water drops below its Temp - it fires the boiler and Opens the valve.

Depends how long you have the heating on/ your system

That figure will be for a dumb system eg central stat

We sort of do have a central stat. There is only one stat that’s downstairs that can call for heat. It’s set to 21 degrees and is on from 6-9pm. The rest of the house is basically just TRV’s (the external thermostat just makes the TRV’s more efficient by sensing the temperature in the room - rather than the temperature on the TRV itself)