cost of running a 1500 watt Oil filled radiator

barrymanilow

Hi there,


I have a question about costs around using oil filled radiators for working from home as weather gets colder.


So I believe if it is a 1500w radiator then every hour it is on it will cost one and a half kilowatt hours so say it is 20 cent a KWH then this radiator would cost 30 cent an hour.


If I wanted to keep a box room at 21 degrees say and the radiator had a thermometer then it would not be on full blast for the whole hour only kicking in to bring the temp back up to 21degrees and so would be cheaper than that. Is this correct and is there anyway to gauge the true cost then ?



Thanks

brightspark

The amount of energy needed to maintain the heat in the room depends on several factors, the outside temperature, the insulation wall construction etc., the amount of air changes in the room, temperatures of adjacent rooms, direction and speed of the wind is blowing on the external wall.......

There is no guarantee that 1.5kW will keep your box room at 21C, even when on continuously on a very cold, windy day.

However there are online calculators that will provide estimates (some will be in BTUs, British Thermal Units)
BTUs convert directly to kWh (3412.14 BTU = 1 kWh)

No idea how good the calculator below is.

https://www.bestheating.ie/btu-calculator?gclid=Cj0KCQjwu8r4BRCzARIsAA21i_AO8a5RZczXXTNXeC9rBS1RMfaVi9DTIWEadF194TO94S1Z_boOsa0aAmcBEALw_wcB&gclsrc=aw.ds