"The right tools and training make all the difference in professional HVAC work" - LARK Labs

๐Ÿ† Our Flagship Apps for Canadian HVAC Professionals ๐Ÿ†

โญ PREMIUM APP
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Code Compass

The ultimate Canadian gas code search and navigation tool for HVAC technicians

โœ… FREE - Ontario Regulations, CSA B149.1-25 & B149.2-25 Sections 1-4
โœ… Premium Subscription - Full B149.1-25 & B149.2-25 code search + AI explanations
โœ… Smart Bookmarks - Save your most-used sections
โœ… Offline Access - Works without internet
Used by 1000+ Canadian technicians
๐ŸŽ‰ FREE BETA!
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HVAC Jack 4.0

Revolutionary AI HVAC troubleshooting assistant with photo analysis

โœ… Photo Analysis - Snap appliance labels, get instant data
โœ… AI Diagnostics - Expert troubleshooting in seconds
โœ… Auto-Fill Forms - Service reports made easy
โœ… FREE for Beta Testers - Lifetime access!
Limited to first 100 beta testers
Public launch December 1, 2025 - $179/year
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Additional Professional Tools

Professional HVAC Calculators

Load calculations, unit conversions, and refrigeration P-T charts for Canadian HVAC technicians

Available Now

TSSA G2 & G3 Practice Exams

Complete exam simulators to help you pass your Canadian Gas Technician certification

Available Now

Canadian HVAC Community NEW BLOG

Connect with technicians, share knowledge, and stay updated with industry news & promotions

Featured - Industry Updates

CSA B149.1 Code Search Tool

Search through Canadian gas codes, CSA B149.1, TSSA regulations, and safety standards

Available Now

Frequently Asked Questions

How do I study for the TSSA G2 exam?
Our comprehensive G2 exam guide provides detailed study strategies and our premium practice exam simulator with 500+ questions and detailed explanations. Combined with our Code Compass tool (free for Ontario Regulations and CSA B149.1-25/B149.2-25 Sections 1-4), you'll have comprehensive preparation for your Gas Technician 2 certification.
What's the best free HVAC calculator for Canadian standards?
Our HVAC Pro Tools app includes professional-grade calculators specifically designed for Canadian HVAC work, including heat load calculations with Canadian climate data, refrigeration P-T charts for all common refrigerants, and unit converters for imperial/metric systems.
Are there free tools for TSSA G3 exam preparation?
Yes! Our complete free G3 study guide includes practice exams, chapter review questions for all 9 units, and access to our Code Compass tool. All G3 resources are completely free to support Canadian gas technician students.
Are these tools suitable for HVAC students and educators?
Absolutely! All our tools are designed for students, working technicians, and educators. They're used in Canadian HVAC programs and are completely free for educational use. Our training modules align with Canadian gas technician certification requirements.
How do I prepare for the Canadian gas code exam?
Use our Code Compass tool to search and study Canadian gas installation regulations (free for Ontario Regulations and CSA B149.1-25/B149.2-25 Sections 1-4, premium subscription for full code access), combined with our comprehensive chapter review questions covering all units from safety protocols to advanced piping systems and appliance installation.
What makes these HVAC tools different from others?
Our tools are built by experienced HVAC professionals and educators specifically for the Canadian market. They include Canadian climate data, CSA standards, TSSA regulations, and are designed based on 20+ years of field experience and 10 years of teaching HVAC programs.