patriotelectric
Member
Is there a sq footage/ BTU calculation for electric heat?
Electric heat
- Thread starter patriotelectric
- Start date
- Status
- Location
- Bremerton, Washington
- Occupation
- Master Electrician
Re: Electric heat
Its based on the heat loss and lowest outside air temp. in your area.
Heat loss is determined by insulation, windows and doors.
Its based on the heat loss and lowest outside air temp. in your area.
Heat loss is determined by insulation, windows and doors.
rcarroll
Senior Member
- Location
- Fort Collins, Colorado
Re: Electric heat
For electric baseboard, I used to figure 8 to 10 watts per sq. foot.
For electric baseboard, I used to figure 8 to 10 watts per sq. foot.
mdshunk
Senior Member
- Location
- Right here.
Re: Electric heat
I used to always use the "one watt per cubic foot" rule of thumb, which worked for me for over 20 years. Since learning more about HVAC, I run a quick ACCA "Manual J" calculation on the computer to get the real numbers per room.
I used to always use the "one watt per cubic foot" rule of thumb, which worked for me for over 20 years. Since learning more about HVAC, I run a quick ACCA "Manual J" calculation on the computer to get the real numbers per room.
- Location
- Windsor, CO NEC: 2017
- Occupation
- Service Manager
Re: Electric heat
I'm at a higher elevation than mdshunk, I think.
At around 5000', we use 1.25 Watts per cubic foot. Up in the mountains, it's more like 1.5 Watts per cubic foot.
I prefer the cubic foot method over square footage, because it accounts for odd ceilings a little better.
I'm at a higher elevation than mdshunk, I think.
At around 5000', we use 1.25 Watts per cubic foot. Up in the mountains, it's more like 1.5 Watts per cubic foot.
I prefer the cubic foot method over square footage, because it accounts for odd ceilings a little better.
- Status