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Eagan HVAC Service

HVAC System Design

Custom HVAC design for new construction, additions, and major renovations. Manual J load calc, Manual D ductwork design, and Manual S equipment selection.

HVAC System Design You Can Rely On

Builder-default HVAC sizing is one of the most common reasons homes have comfort complaints. We perform full ACCA Manual J load calcs, Manual D ductwork design, and Manual S equipment selection so your new build or addition is comfortable and efficient on day one.

What's Included

  • ACCA Manual J load calculation
  • Manual D ductwork design
  • Manual S equipment selection
  • Code-compliant ventilation (ASHRAE 62.2)
  • Coordinated with builder schedule

Common Symptoms We Diagnose

  • New construction or major addition
  • Major remodel changing room loads
  • Replacing the entire system

HVAC System Design FAQs

What is Manual J and why does it matter?
Manual J is the ACCA standard for residential heat-loss / heat-gain load calculation. Done correctly it sizes your equipment to your actual home — not square footage. Most rule-of-thumb sizes are 30-50% oversized, which causes humidity and short-cycling problems.

Schedule HVAC System Design in Eagan

Talk to a licensed Minnesota HVAC tech about hvac system design for your home or business.