Vokera Linea 25HE - rooms never reaching desired temp

[Deleted member 99918]

3.843p / kWh
24.56p standing charge per day

 

[Chuck]

3.843p / kWh
24.56p standing charge per day

So, let's estimate that your heating was on for 2 * 7-hour periods during the 36 hour it cost £5. That means that while the heating as on it was consuming:

(500 p - 36/24 *24.56 p) / (3.843 p / kW hr) / ( 2* 7 hr ) = 8 kW

You would need about 6 hot radiators (4 ft W * 2ft H) blasting away to dissipate that much heat, more than I'd expect for a small flat with reasonable insulation at this time of year.

So, I wonder if you have a dripping hot-water tap or possibly a leak somewhere. This would explain your observation that the boiler is continually firing up throughout the night.

 

[Deleted member 99918]

The boiler doesn't do that any more now that it's off during the night.

And no dripping taps.

5 rads in total in flat. Living Room, kitchen, bedroom, bathroom and hall. They are all single except for the living room which is a double.

The only other time something would be using gas is when the oven is on for dinner.

 

[Chuck]

5 rads in total in flat. Living Room, kitchen, bedroom, bathroom and hall. They are all single except for the living room which is a double. The only other time something would be using gas is when the oven is on for dinner.

The gas oven is only going to be less than 10% of the total.

8kW for 7 hours a day is on the high-side but not impossible particularly if the adjacent flats are unoccupied.

It's possible that the meter is actually charging you more than 3.8p/ kW hr so you need to find out what volume of gas it is recording.

The explanation could simply be that you are living in a flat with very high heat losses and the rent should be lower to reflect this.

The only way to be sure would be to get a heating engineer to do a heat loss calculation, check the calibration of the meter and that system is operating correctly.