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Welcome to  We provide custom Manual J Heat Loss Calcs on any size home for only $69.

How does the process work?  

Simply order your Manual J Here and email your plans to

How long does a Manual J take?  

We can turn each project around to you in about 12 hours or less.  Sometimes 4-6 hours if you provide us with PDF plans, jobsite address, and square footage in your initial contact email.

What does it cost for a Manual J Heat Loss Calc? 

We charge only $69 for any size plan.  Order Here

Is a Manual J Free? 

Most of the cost associated with the Manual J are skill based.  If you had the knowledge, literature, and software you might be able to create a Manual J for “Free”.  However, the definition of “Free” depends on what your time is worth.  If you get paid $25 an hour and work on a Manual J for 3 hours, then the opportunity cost of creating your “Free Manual J” is $75.  This means a $69 Manual J service makes more financial sense.

How is the Manual J calculated?

Through principals, softwares, and calculations spelled out by the ACCA and HVAC Certification Association

What is a Manual J in HVAC? 

A manual j takes the components of your home and measures them against your climate zone data.  Letting you know the expected heat loss and heat gain in BTUs.  This allows you to then move on to calculations like Manual S equipment Sizing and Manual D duct layout.

Do I need a Manual J Heat Loss?

Your building inspector or building department will have a final say as to whether the Manual J Heat Loss Calculation is mandatory.  However, we see many people having Manual J created even when it is not obligatory.  This allows them to have the piece of mind of knowing how many BTUs they will use to heat and cool their home.

What do you need?

Just send your order confirmation number, pdf plans, and your jobsite address to and we will print off a full size set of plans and start your calculations.