High gas usage for boiler.

[stevedurban]

Unless there was and the op didn’t notice ?

Let’s say I didn’t notice (very possible) - and the heating was on. It wouldn’t be higher than 21 degrees as the TRV’s and thermostats would have controller it) and with the hotter weather outside - it shouldn’t have taken much time keep the house at that temperature. So it still wouldn’t really explain?

 

[ShaunCorbs]

And there not conflicting with each other eg trvs shut down but stat still calling ?

 

[ShaunCorbs]

Let’s say I didn’t notice (very possible) - and the heating was on. It wouldn’t be higher than 21 degrees as the TRV’s and thermostats would have controller it) and with the hotter weather outside - it shouldn’t have taken much time keep the house at that temperature. So it still wouldn’t really explain?

Depends what time you have it set for off ?

 

[ShaunCorbs]

It might be worth converting the system back to a dumb one for a month and see the usage as Jan and feb are normally similar

 

[John.g]

I would expect a "normal" house to need ~ 5/6 kwr/hr to keep it at 21C so 17.5hras @ 6 = 105kwh/day, i heat mine over the last few days 16 hr days for ~ 75/90kwh BUT my (4) bedrooms are kept at 16/18C, all downstairs kept at 21/22C.

 

[ShaunCorbs]

Plus hot water at around 30kwh ish as depending on usage

 

[stevedurban]

Depends what time you have it set for off ?

And there not conflicting with each other eg trvs shut down but stat still calling ?

Heating always goes off at 9

It’s possible - although I’ve tested time and time again with the downstairs stat. Pushing to 25 degrees and the ch valve opens - putting it to 5 degrees - it closes. I’ve never seen it not do it! But it’s possible it malfunctioned - but I guess the questions is:

The house was 17.9 degrees at 6am this morning before the heating came on. It was set to 21 degrees and we were in all day. It used 185kwh to try and keep it at 21 degrees. If that’s to get expected - then your view of “I just use more gas” could be right?

 

[John.g]

Dumb can be the smartest in the end as long as you don't need room temp control to the nearest 0.1 or 0.2C.

 

[John.g]

How many rooms are you maintaining at 21C, the whole house?.

 

[ShaunCorbs]

Dumb can be the smartest in the end as long as you don't need room temp control to the nearest 0.1 or 0.2C.

That I think is the problem each room has its own stat that’s opening and shutting prob 1-2 degrees and firing the boiler up for maybe 5 mins each time