A 3000 W water heater is 3 kW water heater. For 30 minutes of operation it would be 3 kW multiplied by 0.5 hours, or 1.5 kWh. One kWh is equal to 3,600,000 Joules, the water heater uses 1.5 times 3,600,000 J, or 5,400,000 J.
1500 watts... Average electric bill is $0.98/ killowatt hour (1000 watts an hour) So it wil cost around $1.50- $2.00/ Hour to operate
Per hour the answer is 400 watt-hours or 0.4 kW-hours (or units).
From the details this is probably a UK question. It would use 60 watt-hours of energy every hour, which is 0.06 kWh or units of electricity, and that would cost around 1p.
A 2000 Watt fire burning for an hour will consume 2 kilowatt-hours (kWh) of electricity. This is calculated by multiplying the power of the fire (2000 W or 2 kW) by the time it is burning (1 hour).
To calculate the cost of running a 2 kilowatt convector heater per hour, you need to know the electricity rate charged by your utility company. Let's assume the rate is $0.12 per kilowatt-hour. In this case, running a 2 kilowatt convector heater for an hour would cost $0.24 ($0.12 x 2).
1500 watts... Average electric bill is $0.98/ killowatt hour (1000 watts an hour) So it wil cost around $1.50- $2.00/ Hour to operate
Per hour the answer is 400 watt-hours or 0.4 kW-hours (or units).
From the details this is probably a UK question. It would use 60 watt-hours of energy every hour, which is 0.06 kWh or units of electricity, and that would cost around 1p.
A 2000 Watt fire burning for an hour will consume 2 kilowatt-hours (kWh) of electricity. This is calculated by multiplying the power of the fire (2000 W or 2 kW) by the time it is burning (1 hour).
1500 watt hours
1 MW is 1000 kilowatts, so in 1 Hour it will sell 1000 units (taking a unit as 1 kilowatt hour)
To convert from kilowatts (kW) to British Thermal Units (BTU) per hour, multiply by 3412. Therefore, a 5kW heater would produce 5 * 3412 = 17060 BTU per hour.
To calculate the cost of running a 2 kilowatt convector heater per hour, you need to know the electricity rate charged by your utility company. Let's assume the rate is $0.12 per kilowatt-hour. In this case, running a 2 kilowatt convector heater for an hour would cost $0.24 ($0.12 x 2).
A heater with a power rating of 80W will consume 0.08 kWh (80W = 0.08kW) of electricity in one hour. Multiplying this by the cost of electricity, which is 0.17.24p per kW, the heater would cost around 1.4p to run for an hour (0.08kW x 0.17.24p/kW).
To calculate the cost per hour for a 400W heater, you need to know the electricity rate per kilowatt-hour (kWh) charged by your utility company. For example, if the rate is $0.12 per kWh, a 400W heater would use 0.4 kWh per hour (since 400W = 0.4 kW). Multiplying 0.4 kWh by $0.12 gives you a cost of $0.048 per hour to run the 400W heater.
Approx 2 units per hour 3 star ac
The unit of energy in an electricity bill is a kilowatt-hour, also known as a Unit. To calculate the energy in units, multiply the power in kilowatts by the time in hours.