You're going wrong by assuming the boiler is outputting 24kWs. To produce the same amount of heat (assuming 90% efficiency) it would be using 5kW/0.9 * 10p = 55.5p/hr
Opinions on switching from gas boiler to electric
- Thread starter yartin
- Start date
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Your original spec had 2 x 3kw, 1 x 2kw and 1 x 2/1 kw rad so total load of 9 or 10kwh.
Let's assume your new 5kw is the heatloss.
Your Baxi can modulate down to 11kwh in heating mode. If the heatloss really is 5kw it'll be cycling a fair bit so it'll probably burn 7kwh to deliver that 5kwh load. Which is costing 70p per hour.
I'm pretty sure he doesn't care.
Turnover of tenants will be about 1 a year, after they've seen the size of the winter fuel bill.
Why are using 5kw in your calculation when it is 24kw boiler?
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I do care. Tenants can save by heating only occupied rooms.
Tenants in flats last usually 2 years in average.
As I said before, all new build flats and even houses don't have gas. I encourage green energy and urge forum members to follow.
Because 24kwh is the MAXIMUM output of the boiler. As I've mentioned several times, your boiler can modulate (vary) it's burn rate down to 11kwh. If the heatloss of your flat is 5kw (that means it needs an input of 5 kW per hour to maintain a comfortable temperature) the boiler will only be running for about 30 minutes per hour to keep the place warm (assuming you have a room thermostat to control the thing)
You have choice of two fuels. Energy from one costs four times as much as energy from the other. You want to make your tenants use the expensive one. You don't care.
So boiler will cost 70 p per hour
If only one room is used, will cost 2kw*34=68p
So you heat 1 room with electricity for what it costs to heat the whole flat with gas. Doesn't sound like a bargain to me!
By the way, before doing anything you need to do some heatloss calcs rather than hoping that a 2kw panel heater will be adequate.
That's your opinion, we need green energy.
How about governments, builders... don't they care when building new homes without gas supply?
I don't heat my whole house when only me, I use 1KW fan heater.
There are ways to save money, don't judge people by saying such specially if you don't know them.
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The cost will be proportionate to the energy used
When the outdoors is warm, less will be used.
For a short time each day, when the boiler is heating the radiator water from cold and the rooms from cold, it will use more energy than when maintaining temperature.
The cost of hot water will be negligible.
No, it is pure fact.
You have choice of two fuels. Energy from one costs four times as much as energy from the other. You want to make your tenants use the expensive one. You don't care.
Doesn't the same applies to electric rads? I mean for 2kw rad for example, it won't be on for the full hour and hence your calculation should give lower cost per hour? The rads will have a thermostat just like room thermostat to control the thing.
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Yes, except that energy from electricity costs four times as much as energy from gas.
You can't get away from that fundamental fact.
When the government decided that new builds would no longer have gas for heating they were under the illusion that builders would pay for very expensive (but green) Air Source Heat Pumps to heat the buildings reasonably efficiently using electricity. An ASHP in a well insulated new build might be able to heat the property for a similar cost to gas.
Builders want the cheapest option so if they have to use electricity for heating they will be likely to shove in some night storage heaters which are much cheaper to buy and install than ASHPs but are not cheap to run and are not green.
Using gas to generate electricity and then using that electricity in panel heaters to heat houses cannot be described as green.
Builders want the cheapest option so if they have to use electricity for heating they will be likely to shove in some night storage heaters which are much cheaper to buy and install than ASHPs but are not cheap to run and are not green.
Using gas to generate electricity and then using that electricity in panel heaters to heat houses cannot be described as green.
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