HVAC Load Calculator for
Washington Homes
Local Climate Analysis for Washington
Washington typically experiences summer highs reaching design temperatures of 92°F. Due to high humidity levels in this region, your HVAC system must be sized to handle significant latent load (moisture removal).
📊 Energy Usage Profile
Days you need AC
Days you need Heat
⚙️ Technical Factors
High humidity load. Dedicated dehumidifier recommended.
No derating needed.
Manual J Tip for DC
Because the design temperature difference (Delta T) in Washington is approximately 17°F (Summer) and 53°F (Winter), your system may need to be sized primarily for one extreme season over the other.
Installation Cost in Washington
Local labor rates and equipment standards in DC influence the final quote. For a standard 3-ton system changeout in Washington, calculate roughly $1,800 - $2,200 per toninstalled, depending on whether you choose a single-stage or variable-speed inverter unit.