Furthermore, how do I calculate how many kW I need to heat a room?
Take the measurements of your room in feet or metres. The multiply the Length of the room x the Width of the room x the Height of the room. The multiply this figure by a factor of 6 for BTU's or by 0.0606 for kW. The result is now the mimimum heat output required to heat this room.
Subsequently, question is, what size room will a 1500 watt heater heat? A 1,500 watt heater producing 5,100 BTUs can heat 150 square feet. That's equivalent to a 10-by-15 foot room, an 11-by-14 or one sized to 12-by-12 1/2 feet with a standard 8-foot ceiling.
Also to know is, how many kW of electric heat do you need per square foot?
Plenum heaters can be sized using 8 to 10 watts per square foot with 8 foot ceilings. Use 15 kW models in structures 1500-2000 square feet. Use 20 kW models in structures 2000-2500 square feet.
What size of heater do I need for my room?
| Room Size (Sq Ft with 8 foot ceiling) | Watts (Poor Insulation) | Watts (Avg Insulation) |
|---|---|---|
| 60 square feet | 750 | 750 |
| 80 square feet | 1000 | 1000 |
| 100 square feet | 1250 | 1000 |
| 120 square feet | 1500 | 1250 |
