Transfer Air Design & Compliance Certification Kit
A pre-filled, state-specific HVAC design template + compliance checklist that homeowners or contractors fill out based on their home layout, then get reviewed and stamped by a licensed HVAC engineer. Includes room-by-room transfer air calculations, door undercut sizing, duct routing diagrams, and a final compliance letter acceptable to inspectors. No software—just a fillable PDF workflow with human review.
17 weeks • 70% confidence
Value Proposition
Cuts HVAC contractor design fees (typically $800–2,000) to $200–400 while guaranteeing code compliance and inspector acceptance. Homeowners avoid the 'will this pass inspection?' anxiety. Contractors use it as a fast, repeatable upsell for retrofit jobs.
Target Audience
Homeowners retrofitting homes + small HVAC contractors in states with transfer-air codes (CA, NY, WA, CO); DIY-inclined but code-conscious
Key Features
- State-specific (CA Title 24, NY Energy Code, etc.) fillable PDF templates with pre-loaded code requirements
- Room-by-room transfer air calculator (CFM needed based on supply air, door undercut sizing)
- Door undercut sizing chart + acoustic/privacy guidance
- And more, with full implementation detail...
Tech Stack
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Sign up freeOriginal Problem
Homeowners struggle to design compliant HVAC systems that ventilate all rooms without expensive ductworkHomeowners retrofitting or building homes need to ventilate bedrooms but lack clear guidance on using transfer air from mechanically supplied living spaces—a cheaper alternative to running separate ducts. Current solutions either require expensive full ductwork installation or leave homeowners uncertain about code compliance, energy efficiency, and whether their DIY approach will actually work. They're stuck between hiring expensive HVAC contractors or risking non-compliant installations.
Score: 17.5%