To calculate a cost in kW/h a time interval has to be stated. How long is the 400 watt heater going to be on in a 24 hour period. You also have to state what you are being charged from the utility power company per kW/h.
What it costs me to run a heater does not depend on how much you are charged, but a 1500 watt heater would use 1500 watt-hours or 1.5 kWh for every hour it is run. Run for 24 hours it would use 36 kWh, also known as 36 units.
40 watts for 24 hours is 40 x 24 watt-hours, or 960 watt hours which is 0.96 kilowatt-hours, equal to 0.96 Unit, which costs about £0.12.
0.260kW * 4h * $0.20/kWh = $0.208
It depends on the cost of electricity and the cost of natural gas in your area. Generally, using a 5000 BTU natural gas heater is cheaper than using a 1500 watt electric heater. Natural gas is typically more cost-effective for heating compared to electricity.
Number of BTUs not relevant to this. A 1350 watt heater is 1.35 kilowatts. When operating one hour, will consume 1.35 KWhours. 1.35 x .07= your answer per hour.
By radiation.
Usually much smaller. A normal freeze plug block heater is about fifty bucks.
What it costs me to run a heater does not depend on how much you are charged, but a 1500 watt heater would use 1500 watt-hours or 1.5 kWh for every hour it is run. Run for 24 hours it would use 36 kWh, also known as 36 units.
40 watts for 24 hours is 40 x 24 watt-hours, or 960 watt hours which is 0.96 kilowatt-hours, equal to 0.96 Unit, which costs about £0.12.
A 50 watt heater is major over kill for a 3 gallon tank, a 10 watt heater is more than enough for a tank that size. You will nuke your aquarium very quickly the first time the 50 watt heater sticks on, with a 10 watt heater if it sticks on the aquarium temp will only raise a degree or two.
0.260kW * 4h * $0.20/kWh = $0.208
It depends on the cost of electricity and the cost of natural gas in your area. Generally, using a 5000 BTU natural gas heater is cheaper than using a 1500 watt electric heater. Natural gas is typically more cost-effective for heating compared to electricity.
I would not try to heat a tank any larger than 8 gallons with a small 50 watt heater. The difference in price between a 50 watt and a much more usful 150 watt heater is not much. I'd check things out before I got a very small heater that may have to work very hard to do its job.
Number of BTUs not relevant to this. A 1350 watt heater is 1.35 kilowatts. When operating one hour, will consume 1.35 KWhours. 1.35 x .07= your answer per hour.
A 1000 watt generator cannot run a 1500 watt ceramic heater without having problems.
ahm...depends on the cost per watt charged by your local provider... how much is it?
The fan has a rated load of 2 kW. It is this wattage times the amount of hours the fan is used times the cost of a kWh in your area that the cost is based on.