Energy Compliance & HVAC Calculations
Accurate Engineering Solutions for Energy Efficient & HVAC Design
FIF Engineering provides residential and commercial energy compliance documentation & HVAC calculations for new construction, additions, and renovations.

REScheck - Residential Energy Compliance
Energy code compliance calculations and documentation for residential projects, including building envelope requirements and applicable energy-code provisions.
✓ New construction
✓ Additions and renovations
✓ Energy code documentation

COMcheck – Commercial Energy Compliance
Energy code compliance analysis and documentation for commercial projects, including building envelope, lighting, and mechanical systems as applicable.
✓ New construction
✓ Tenant improvements
✓ Energy code documentation

Manual J, S & D – Residential HVAC Calculations
Complete residential HVAC calculations, including Manual J load calculations, Manual S equipment selection, and Manual D duct sizing and design.
✓ Manual J – Load Calculations
✓ Manual S – Equipment Selection
✓ Manual D – Duct Design and Sizing
