Heating/maths question

[Driller]

For the maths boffs.

I am useless at maths although I know a bit about heating. Here's the thing:

I would like to calculate the cost of leaving a 2000Watt electric oil heater on all the time to keep a room at a constant temperature.

I know the cost for 1 KW/h. What other information do I need to calculate this?

[TheEnd]

depends on how much heat you lose

[timbob]

I don't know that you could calculate it....

Leaving it on full whack all the time will obviously cost you 2 lots of what a Kilowatt hour costs you, per hour. But depending on what you set the thermostat at, it'll come on for a different amount of time per hour, also depending on the size, shape and insulation properties of the room.

I say, plug it in and see!

[Supersonic pies]

Driller said:

For the maths boffs.

I am useless at maths although I know a bit about heating. Here's the thing:

I would like to calculate the cost of leaving a 2000Watt electric oil heater on all the time to keep a room at a constant temperature.

I know the cost for 1 KW/h. What other information do I need to calculate this?

A calculator.

[eldudereno]

Multiply the cost for 1 KW Hour by 48 to tell you how much it'll cost in 24 hours.

A hint, you're using 2KW.

Running cost/day = (price of 1 KWH)x(Power consumption KW)x 24

Edited by eldudereno on Wednesday 1st April 20:33

[tr7v8]

I do this all the time for work.
For a year it is power in watts X 8766 (hours in a year & a quarter)/1000 to get kWh
So 2000 x 8766= 17532000 / 1000 = 17,532kWh per annum or at around 10pence per kWh around 1,753 pounds.
If it is thermostatically controlled so doesn't run continually then life gets more complicated.
Also if the room doesn't lose 2kWh then the room will get progressively hotter.

[Driller]

Thanks chaps, it was a bit obvious wasn't it