gas vs electric

mumf

Gerry1 said:

Without knowing more (e.g. is it a 'forever' home or just for the next few years) it's difficult to be specific.

Personally I'd never consider an all-electric property; it's a very expensive form of energy for heating, and there would be no alternative heating in the event of rota power cuts or a prolonged failure of the supply.

If there is an electric powercut ,gas heating goes off too. Boilers need electricity. 

Qyburn

mumf said:

If there is an electric powercut ,gas heating goes off too. Boilers need electricity. 

Our oil heating system uses 220W. There are plenty of ways to organise backup power for 220W, a couple of hours per day. Not so easy If you have several kW of electric heating to power, or worse a heat pump that needs to run 24 hours a day.

Qyburn

Which reminds me, what sort of electric heating in the all-electric flat? Direct heat, night storage, or heat pump.

matelodave

To my mind, if a place needs12,000kwh to heat it then it really doesn't matter whether it comes from gas, oil, leccy or burning £5 notes in a fireplace it still needs 12,000kwh.

Agreed that gas may only be 90% efficient but then, even if you need another 10% to produce 12,000kwh of heat, it will still be 3-4 times cheaper than heating with electricity unless you have a heat pump.

Even with my super duper heatpump, the house still needs 12,000kwh of heat to keep it warm, even though I can get that from 4000kwh of electricity. However that 4000kwh costs around £200 a year more than 13200kwh of gas

Gerry1

mumf said:

Gerry1 said:

Without knowing more (e.g. is it a 'forever' home or just for the next few years) it's difficult to be specific.

Personally I'd never consider an all-electric property; it's a very expensive form of energy for heating, and there would be no alternative heating in the event of rota power cuts or a prolonged failure of the supply.

If there is an electric powercut, gas heating goes off too. Boilers need electricity. 

If you have a gas cooker then at least you can light all the burners and leave the door oven open.

Scot_39

Gerry1 said:

mumf said:

Gerry1 said:

Without knowing more (e.g. is it a 'forever' home or just for the next few years) it's difficult to be specific.

Personally I'd never consider an all-electric property; it's a very expensive form of energy for heating, and there would be no alternative heating in the event of rota power cuts or a prolonged failure of the supply.

If there is an electric powercut, gas heating goes off too. Boilers need electricity. 

If you have a gas cooker then at least you can light all the burners and leave the door oven open.

Or use a gas fire.

But even a warm drink and food from a gas cooker and hot water to wash in makes a big difference in a cold spell.

My parents bought a large semi-portable paraffin heater after one power cut to help  - ran it downstairs hall to heat upstairs - I can just about remember the smell - not sonething for bedroom or to be left unattended.

And many in remote areas prone to cuts in UK are turning to mini generators to provide enough power to fuel their often  oil or lpg heating and lights etc..  

The pump and boiler use trivial compared to the kW of heat needed. 

markin

What is the stated primary energy per sqm of both from the EPC's?  

Under 150 is good, 200-500 bad.


Solid wall house D66  213 Kwh/m2 as an example  19,000 kwh is likely more accurate than the ''Space heating'' being stated as 11,800 kwh and water heating as 2,500kwh

ButtercupDaisies

markin said:

What is the stated primary energy per sqm of both from the EPC's?  

Under 150 is good, 200-500 bad.


Solid wall house D66  213 Kwh/m2 as an example  19,000 kwh is likely more accurate than the ''Space heating'' being stated as 11,800 kwh tand water heating as 2,500kwh

The primary energy use for this property per year is 315 kWh per square metre (kWh/m²)

Total floor area 55 square metres