Trusted by Home Service Professionals.
HVAC Calculator Load Pro is a fast, accurate, and field-ready HVAC calculator designed for professionals who need confidence, clarity, and speed when sizing residential HVAC systems.
Size furnaces, air conditioners, and natural gas equipment correctly - without spreadsheets, guesswork, or rule-of-thumb estimates.
Unlike generic Manual J calculators, HVAC Calculator Load Pro is built specifically for real-world residential sales and service.
With climate-aware calculations, wind factor considerations, and clear client-ready results, you can:
• Build trust faster
• Explain recommendations with confidence
• Win more bids
• Avoid costly sizing mistakes
If you’ve ever struggled with traditional HVAC calculations, this app was built for you.
Whether you’re:
• Replacing a furnace
• Adding air conditioning
• Decoding a hot water tank
• Sizing new natural gas appliances
HVAC Calculator Load Pro helps you size equipment correctly in half the time - right from your phone or iPad.
Ideal For:
• HVAC technicians
• HVAC sales professionals
• Comfort advisors
• Home service contractors
• Residential retrofit specialists
Key Benefits:
• Fast, field-ready HVAC BTU calculations
• Residential furnace & air conditioner sizing
• Climate-aware calculations for accurate results
• Reduces under-sizing and over-sizing errors
• Helps explain system recommendations to homeowners
• Saves time on every estimate and service call
• Designed for sales techs, comfort advisors, and installers
Stop relying on rough estimates or overly complex software.
HVAC Calculator BTU Load Pro delivers professional-grade HVAC calculations in a simple, intuitive mobile app - so you can focus on serving customers, closing deals, and growing revenue.
Download now and size HVAC systems with confidence.
Ratings & Reviews
4.0
out of 5
1 Ratings
• Enhanced HVAC Calculator accuracy and flow for better BTU load calculations
• Improvements to mobile phone workflow
• Updated AC sizing and furnace sizing calculations
• Improved HVAC load calculation performance
• Optimized Manual J style load calculator logic
• Stability improvements for reliable HVAC sizing results
HVAC Load Pro continues to deliver fast, accurate HVAC load calculations, BTU sizing, AC sizing, furnace sizing, and Manual J style calculations for HVAC professionals.
Version 1.3.2
The developer, Ryan Perchak, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
Location
Contact Info
User Content
Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Contact Info
Contacts
Identifiers
Usage Data
Diagnostics
Other Data
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Ryan Perchak
Size
11.7 MB
Category
Productivity
Compatibility
Requires iOS 15.6 or later.
iPhone Requires iOS 15.6 or later.
iPad Requires iPadOS 15.6 or later.
iPod touch Requires iOS 15.6 or later.
Mac Requires macOS 12.5 or later and a Mac with Apple M1 chip or later.
