Purchase Our Geothermal Heat Pump Manual J Sizing Service


Read about the importance of a Manual J heat loss heat gain calculation for sizing a geothermal heat pump.

We'll need the following information to complete a Manual J calculation for your home:

Information We Need to Complete a Manual J Heat Loss Heat Gain Calculation for Your Home
Your Name:
Your Email Address:
Optional comments from you:
Information for the basement:
1. The lengths and height of the outside walls.
2. The total square footage.
3. The insulation R values or the thickness of the insulation under the basement floor.
4. The insulation R values or the thickness of the insulation on the basement walls.
5. The total square footage of the windows and any glass in doors, and the type of windows: i.e., casement, double-hung, single-hung, slider, glass block? Also, single, double, triple paned glass, and is there e-coating on one or both sides? Are there storm windows?
6. The total square footage of exterior doors less glass doors, and the type of doors: i.e., solid wood, metal, metal insulated, fiberglass, and are there storm doors?
7. The total square footage of the basement wall that is above the grade (or above the dirt or above the ground).
Information for the first floor:
8. The lengths and height of the outside walls.
9. The total square footage of the floor.
10. The insulation R values or the thickness of the insulation in the walls.
11. The total square footage of the windows, and any glass that is in any exterior doors, and the type of windows: i.e., casement, double-hung, single-hung, slider, glass block? Also, single, double, triple paned glass, is there e-coating on one or both sides? Are there storm windows?
12. The total square footage of any exterior doors less glass doors, and the type of doors: i.e., solid wood, metal, metal insulated, fiberglass, and are there storm doors?
13. The total square footage of the ceilings that do not have living space above them, and the R value or thickness of the insulation.
14. If you have vaulted ceilings in any room or rooms, provide the dimensions of the room or rooms and the roof pitch, and the insulation R value or the thickness of the insulation.
Information for the second floor:
15. The lengths and height of the outside walls.
16. The total square footage.
17. Does any of the second floor area cantilever over unheated and cooled space? Does any of the floor hang over the first floor walls, so the bottom of the floor is exposed to the outside air temperature? If so, how many square feet is exposed to the outside air temperature and what is the R value or what is the thickness of the insulation?
18. Is any of the second floor over top of the garage? If so how many square feet is exposed to the garage air temperature and what is the R value or what is the thickness of the insulation?
19. The insulation R values or the thickness of the insulation in the walls.
20. The total square footage of the windows, or any glass that is in any exterior doors, and the type of windows: i.e., casement, double-hung, single-hung, slider, glass block? Also, single, double, triple paned glass, and is there e-coating on one or both sides? Are there storm windows?
21. The total square footage of any exterior doors less glass doors, and the type of doors: i.e., solid wood, metal, metal insulated, fiberglass, and are there storm doors?
22. The total square footage of the ceilings that do not have living space above them, and the R value or thickness of the insulation.
23. If you have vaulted ceilings in any room or rooms, provide the dimensions of the room or rooms and the roof pitch, and the insulation R value or the thickness of the insulation.
24. Your zip code. We need this to obtain information about the climate in your area, as in low and high temperatures, and heating and cooling degree days.


If you have a plan set, you can email it to us instead of using the form.


Your Manual J heat loss heat gain calculation is priced based on the square footage of your home:

Up to 2,000 Square Feet: $500.00 USD

2,001 Square Feet to 3,000 Square Feet: $650.00 USD

3,001 Square Feet to 4,000 Square Feet: $800.00 USD

4,001 Square Feet to 5,000 Square Feet: $950.00 USD

5,001 Square Feet to 6,000 Square Feet: $1,100.00 USD

6,001 Square Feet to 7,000 Square Feet: $1,250.00 USD



We'll use the information provided by you to calculate the Manual J heat loss and heat gain calculation for your home. The results are contingent on the information you provide, and its accuracy.


If you submit sizing information through our form, we'll send you an invoice for the calculations. Contact us below or by emailing Jacquie at our domain name with any questions. Please check your spam folder if you don't find a reply from us within 5 days - some of our replies are ending up there.

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