Client Information

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Welcome to the King Electric Heat Loss Calculator
(ver 1.0 - WWW) Copyright (c)1999 King Mfg. & Rp2
Follow the instructions in each section to complete the heat loss calculation.
 


You will need to go through your home or the building that you want to do a heat loss calculation upon and tally aspects of each room and their heat loss characteristics. Tallying and adding all the aspects of your building's heat loss will allow this web site to determine the amount of heating that you will need in order to maintain your comfort zone (design temperature). First, give this calculation some identifying labels (at left)

Now enter the total heated floor area of this project. The total heated area of this project is the square footage (length * width) of all the heated spaces in your building. 

Heated floor area in square feet:

Now let's collect data about the glass features in your building for the heat loss calculation. Measure all the glass features on the exterior walls of the building. Enter the height and width values for each window into the boxes at the right. The total glass square footage will be calculated for you. Select the proper fixture type from the pull-down menu.

Height
(in feet) 		Width
(in feet)
Window 1
Window 2
Window 3
Window 4
Window 5

Type of windows:


  Total Square Footage of Windows:
 

Now let's collect data about the exterior doors in your building. Measure the widths of all the exterior doors in your building. Add the widths and enter the total width value in the text box to the right. Once this is done, select the proper door type from the pulldown menu.

Door 1

  (width in inches)
Door 2  (width in inches)
Door 3  (width in inches)
Door 4  (width in inches)
Door 5  (width in inches)

Total square footage 
of exterior doors:
 

 Door type:

 

Calculate the total square footage of ceilings that are adjacent to the exterior of your building. If the ceiling size is the same as the heated floor area, use the value that the heat loss calculator has provided, or enter the square footage value in the text box and then select  the ceiling insulation type/value.

Total square footage of ceilings 

Insulation value in ceiling:

 
Calculate the total lineal footage of all the exterior walls of your building. Note: Do not deduct for windows and doors. The heat loss calculator will do this for you. Measure the length of your walls. Enter the length value of all exterior walls in the text box and then select (or enter) the wall insulation type/value.

Lineal footage of exterior walls:


Insulation type in walls:
Are any of the floors in your building over an unheated space? Calculate the total square footage of all the floor areas over unheated spaces in your building. Enter the square footage value in the text box and then select (or enter) the floor insulation type/value.

Square footage of floor over 
any unheated spaces.

Insulation type in floor:
Do you have a basement with a floor? Calculate the total square footage of all the basement flooring in your building. Enter the square footage value of the floors in the text box and then select (or enter) the floor insulation type/value. 

Size of unheated basement:

Insulation type:
Is your building built on a slab on grade?  If so, calculate the total lineal footage of the slab on grade perimeter insulation of your building. Enter the value (in feet) of the perimeter insulation in the text box and then select (or enter) the insulation type/value.

Lineal footage of slab on grade if any.

Insulation type in slab:
Was your building built prior to 1980? Enter the volume in cubic feet of your building. If you have entered the previously asked for values correctly, this value is calculated for you. Or, enter the cubic footage of your building's volume in the text box and then select the construction year category that fits your structure.

Total volume of heated space:

When constucted
Pre 1980
Post 1980

Note: Your results will be emailed to you. Ensure that the email address you provided above is correct.