The long anticipated update to our revolutionary load calculation software is now available.
There is no cost to create a Cool Calc account. If you require ACCA approved Manual J Version 8 reports we offer convenient download packs for any budget.
The latest version of Cool Calc Manual J is all about simplicity. We consolidated several screens and improved the map tracing capabilities. Users are now guided through the process from start to finish so even users with little experience can sucessfully complete a load calculation.
Now you can determine a home's heating and cooling requirements in minutes right from your mobile device with zero up-front costs. Create a free account and start using our redesigned tool today!
Cool Calc is the most advanced load calculation software available. Check out the new features included in our latest software release.
Version 3.0 is built for speed. Performance will no longer be compromised as we scale.
Our Google Maps tracing library for existing homes has been completely redesigned.
We now have a full API and SDK. Seamlessly integrate Cool Calc into an existing website or application.
Extend functionality with third-party plugins like Google Maps and the LennoxPros proposal tool.
Our user interface now works flawlessly on mobile devices. It works on all other devices as well.
In addition to our summary reports, detailed load calculation reports are now available.
How it works
Now manufacturers, distributors, or other software solutions can integrate Cool Calc directly into their website or application with a few lines of code. Click here to view our API documentation and obtain development credentials.
Your customer info remains private. We never see user names, email, or any other identifiable information.
We provide API clients a full working software development kit (SDK) with a complete framework to customize your style.
Automatically allow your users to access Cool Calc without needing to create a separate account.
Have a large company? Our latest version allows you to invite unlimited team members to join your account.
Purchase reports in bulk and share them across your entire team for greater savings.
You can decide if team members can see each other's projects or only their own.
Unlike other programs that charge per user, we don't charge extra for team members.
Version 3.0 has been redesigned with a "mobile-first" approach. It is now easier than ever to perform a load calculation right from your mobile device.
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Your tool saves me so much time. I can prep a load calculation before I get to a job site and then tweak it while on site directly from my phone or tablet. Keep up the good work.
Thank you so much for developing this tool. I use it my classroom to teach students how to perform a proper load calculation. I love the fact that it is free and I don't have to invest in expensive software.
Our pricing model is based on 1 report credit per HVAC system that you would like to generate an ACCA approved Manual J report for. CoolCalc MJ8 Report credits never expire and you can make unlimited changes to an HVAC system and re-generate reports for that system without consuming additional credits.
Volume pricing is available if you expect to use more than 500 MJ8 report credits per year. Free MJ8 report credits are available to accredited institutions for educational purposes.
Contact us if you are interested in volume pricing or free MJ8 report credits for academic use.
Curious what our MJ8 report looks like? Click the button below to view a sample MJ8 report.
Below you will find some frequently asked questions on our software. For a full list of questions please visit our support site.
Cool Calc is designed in a way that it can pull home information and dimensional data from virtually any source. If you have a cool API that you would like to see integrated, reach out to us today.
Extend the functionality of Cool Calc with our Connector Exchange. Find third-party apps that integrate with our software
FREE
Use Google Maps to trace existing homes in seconds. Perfect for block-load calculations. Instantly obtain wall, ceiling, and floor areas as well as exposures.
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FREE
Lennox dealers can access Cool Calc for free through their LennoxPros login. Reports can also be tied to a projects generated through the Lennox proposal builder.
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Contact us
Do you have an application that would would like to connect with Cool Calc? Contact us today for information on our API and import schema.
read moreJoin our mailing list and stay apprised of the latest feature updates. We also occasionally send discount offers on report packs.