Heat Pump v Electric Radiators

iansl20000

Hello
Has anyone seen an independent comparison of the cost of 
1) Installing a heat pump, typical pipework amendments, extra loft insulation, running costs
versus
2) Purchasing portable electric heaters ( say https://www.toolstation.com/2kw-convector-heater/p77317?) and suffering higher electricity bills 

over say a 20 year period.

It seems at some point that for some ages heat pumps are never going to be economically viable.

Thanks

MattMattMattUK

iansl20000 said:

Hello
Has anyone seen an independent comparison of the cost of 
1) Installing a heat pump, typical pipework amendments, extra loft insulation, running costs
versus
2) Purchasing portable electric heaters ( say https://www.toolstation.com/2kw-convector-heater/p77317?) and suffering higher electricity bills 

over say a 20 year period.

It seems at some point that for some ages heat pumps are never going to be economically viable.

Thanks

There are lots of comparisons, but they do depend on the individual property and occupant usage, so no theoretical comparison would be useful in any meaningful way. Quality of life would also be difficult to quantify, but option two would certainly lead to a lower one. 

Reed_Richards

You can ignore the cost of extra loft insulation; that will reduce your heating costs whatever form of heating you use.  So actually it would be more beneficial to radiators which have the higher running costs.

Also, you can get a huge subsidy towards the installation of a heat pump which skews things in their favour.

michaels

Say your heat demand was 10,000 kWh a year and the heat pump had a cop of 3 and electricity was 25p per unit

Electric rads for 20 years = 20 x 10000 x 0.25 = £50,000

Heat pump £50,000 x 0.33 = £16,700

Saving £33,300 (in running costs)

Strummer22

michaels said:

Say your heat demand was 10,000 kWh a year and the heat pump had a cop of 3 and electricity was 25p per unit

Electric rads for 20 years = 20 x 10000 x 0.25 = £50,000

Heat pump £50,000 x 0.33 = £16,700

Saving £33,300 (in running costs)

And that is not including the cost of heating hot water, presumably the alternative being electric water heating. You could do the same calculation for water heating. This could add maybe 1000 - 3000 kWh to the calculation, depending on demand.

Exiled_Tyke

Strummer22 said:

michaels said:

Say your heat demand was 10,000 kWh a year and the heat pump had a cop of 3 and electricity was 25p per unit

Electric rads for 20 years = 20 x 10000 x 0.25 = £50,000

Heat pump £50,000 x 0.33 = £16,700

Saving £33,300 (in running costs)

And that is not including the cost of heating hot water, presumably the alternative being electric water heating. You could do the same calculation for water heating. This could add maybe 1000 - 3000 kWh to the calculation, depending on demand.

As I have a cheap overnight tariff I heat a tank of water using the ASHP for less than half the cost of using my old gs boiler.