ElectricHP BTU Calculator

BTU Calculator

Units
°C
°C
Building Measurement
Temperature losses through the walls and roof will be estimated based on the dimensions provided. For a more complex building shape, such as a tank or silo, you can switch to Advanced mode and enter the surface area manually.
m
m
m
Enter the surface area for the TOTAL combined wall area, the floor surface area, and the ceiling surface area. Select the appropriate insulation R-Factor values for each. Enter the known air volume of the space, and the number of air changes per hour required.
m2
m2
m2
m3
/hour
Results
  • BTU Losses (Building) (BTU/Hr/°F)
    - - -
  • BTU Losses (Air Changes)
    - - -
  • Minimum Required Output
    - - - BTU/hr
    (- - - watts/hr)