Contact

Questions, corrections or suggestions about the Hvac Sizing Calculator are welcome. We read every message, especially feedback from HVAC professionals who can help us refine the load factors.

Email: gpcgabriel0@gmail.com

Please include the inputs you used (square footage, climate zone, and so on) if you are writing about a specific result — it helps us reproduce and check the number. We aim to reply within a few business days. We cannot provide individual engineering advice or specify equipment for your home; for that, consult a licensed local contractor who can perform a Manual J calculation.