High Gas Bills?

[emnick]

Hi all,

Using a combination of a Nest Thermostat and a Smart Meter i'm trying to improve our gas bill which is currently over £145 a month!

Our boiler seems to be on approx 5 hours a day to keep the house at 19/20C during the day and 12C at night,
Which at 24Kw is costing 132Kw about £5 a day.

I thought i was our boiler inefficiency that was causing the bill till i got the figures above,

how many hours a day does your boiler normally run? thinking we might have a issue with house efficiency rather then boiler?

Many thanks in advance!

 

[HERTS P&D]

Loft insulation depth?

Andy

 

[JohnD]

how many cubic metres of gas do you use per year? The size of your direct debit order is less useful.

How many have been in November and December? (the rate of usage per day will be useful)

Do you live in a well-insulated 2-bedroom terraced house in Cornwall?

Or a stone, 1880, 16 room manse in Inverness?

Also
5 hours x 24kW makes 120kWh, not 132

And it is (almost) impossible that a modern boiler will run continuously at its maximum rating.

my month-to-date gas usage for December 2019 averages 7.4 cu.m/day which is about 83kWh, which is normal for December, but since you don't know how big my house is, that is no help to you.

 

[emnick]

Loft insulation depth?

Andy

Not sure sorry, its insulated but boarded on top

 

[HERTS P&D]

Not sure sorry, its insulated but boarded on top

100mm then, it needs to be 300mm.

Andy

 

[emnick]

how many cubic metres of gas do you use per year? The size of your direct debit order is less useful.

How many have been in November and December? (the rate of usage per day will be useful)

Do you live in a well-insulated 2-bedroom terraced house in Cornwall?

Or a stone, 1880, 16 room manse in Inverness?

Also
5 hours x 24kW makes 120kWh, not 132

And it is (almost) impossible that a modern boiler will run continuously at its maximum rating.

Hi thats not my direct debit that my actual cost from smart meter home display

Also its approx 5hrs as 132 is 5.5hrs a day,

 

[emnick]

Hi thats not my direct debit that my actual cost from smart meter home display

Also its approx 5hrs as 132 is 5.5hrs a day,

4 bed house detached in Poulton near Blackpool
Many thanks

 

[emnick]

100mm then, it needs to be 300mm.

Andy

Thanks Andy,

The loft is always very cold when i access, does that mean i have to pull up boards to add it and not re board?

 

[HERTS P&D]

The loft should always be cold, you could add loft insulation where there is no boarding but do not block the eves.

Andy

 

[JohnD]

4 bed house detached in Poulton near Blackpool
Many thanks

Cavity wall insulation?

Is the hall draughty?

How old are the windows?

Any bare floorboards?

Do you shut the internal doors?

Do you have TRVs on the radiators?

 

[HERTS P&D]

see below:

Andy

 

[John D v2.0]

I would say look for draughts first, does the house cool quickly then the heating goes off?

 

[emnick]

I would say look for draughts first, does the house cool quickly then the heating goes off?

I think that might be the issue, trying to work out how many hours on average a boiler runs this time of year?

 

[gas112]

Bit late but you should never change an old meter because they have worn and usually benefit the customer