The more insulation, the less wattage is needed to effectively heat the space. But with that said, you are going to need somewhere between 5-10 watts per square foot. And Home built within the last 10 years only require around 5 watts/sqft because of increased insulation standards in building codes.
A: Aim for about 10 watts per square foot. For a 600 sq ft room, that would be around 6,000 watts. Q: What type of electric heater is best for a large room? A: Both convection and infrared heaters can be effective, depending on your heating preference.
The general guideline for electric baseboard is 10 watts per square foot of space and 1.25 watts per cubic foot for fan forced heat in rooms with 8' ceilings, rounding up to the product with the next highest wattage rating.
1500 watts will heat spaces up to about 150 square feet and can help you stay warm and toasty in a medium-sized room, office, kitchen, or modest-sized living room.
Example (you can use an electric heater running cost calculator below for different wattages/kWh prices): If we assume the price of electricity is $0.1319 per kWh, a 1,500-watt electric space heater will cost; $0.20 to run per hour. $4.80 to run per 24 hours (day). $11.20 to run per week (8h/day).
To understand how many watts are needed, it is important to know how well your room is insulated. The more insulation, the less wattage is needed to effectively heat the space. But with that said, you are going to need somewhere between 5-10 watts per square foot.
1500 watts for 200 sq. ft., 4000 watts for 500 sq. ft., 4800 for 600 sq. ft.
Only the speed of heating will be more with 2000 watt. As far as the quanitity of hot water is same, you will need same heat content, for which same energy will be needed. For ex to provide 6000 Wh of heating, 1500 will take 4 hours and 2000 will take 3 hours.
However, as an estimate based on size alone, ACs need 20 BTUs per one square foot and an average ceiling height (according to the recommendation of the US Department of Energy). That's to say, if you want to cool a 600 sq/ft space with 8 ft ceiling, you will need a 12000 BTU air conditioner.
While we may dream of palatial estates, even a modest 600 sq. ft house can be made beautiful. It's just about enough for a compact 1BHK or 2BHK.
600 – 1,000 sq ft: 18,000 BTU (1.5 tons)
While smaller 750W heaters are suitable for personal spaces, 1500W models can effectively heat larger rooms. Your location significantly impacts operating costs, with northern states seeing higher usage due to longer heating seasons.
Most bathroom heaters use around 5,000 BTUs, which is around 1,500 watts. If you have high ceilings (over 8 feet), you can calculate the required wattage to properly heat up your bathroom by multiplying the total square footage with the ceiling height and 1.25. Example: 150 sq ft x 10 feet x 1.25 = 1,875 watts.
30 amps (at 120 volts) is 3600 watts. With a 80% safety rating, you get 2880 watts. You could probably manage to run two electric space heaters (rated at 1500 watts each).
The average home refrigerator uses between 350-780 watts. Some refrigerators are more energy efficient than others, so you'll want to check the label on yours or look it up online to see how much power it consumes.
How Much Electricity Does an Air Conditioner Use? Air conditioner usage varies based on the size of your AC. However, generally speaking, a central air conditioner will consume between 3000 and 3500 watts per hour. While window units use between 900 and 1440 watts per hour, portable units consume between 2900 and 4100.
For a 1 car garage with 200 sq ft to 300 sq ft, the estimated heater size is 15,000 to 25,000 BTUs. For a 2 car garage with 500 sq ft to 700 sq ft, the estimated heater size is 30,000 to 45,000 BTUs. For a 3 car garage with 750 sq ft to 900 sq ft, the estimated heater size is 45,000 to 55,000 BTUs.
Open garage windows and doors to let sunlight in. This warms up the space without any cost. Cover windows with clear plastic to keep the warmth inside. Another way is to use the heat from your house.
The average sized 2 car garage's square footage usually ranges from 400 (20×20), 576(24×24), and 720 (24×30) square feet.
For example, a 30-amp circuit can accommodate a baseboard heater rated for 500 square feet or 4,500 watts, but the same heater will be more efficient at heating a smaller room (assuming the circuit size is appropriate).
Calculating Your Garage Heater Size
Watts are easy enough to follow as they can be quantified by 10 watts per square foot of space.