Verified Climate Data • Zip 78205

HVAC Load Calculator for
San Antonio Homes

Summer Design98°F
Winter Design33°F
Humidity Loadhigh

Step 1: Location Analysis

We verify climate data for your specific Zip Code.

Local Climate Analysis for San Antonio

San Antonio typically experiences summer highs reaching design temperatures of 98°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

Cooling Demand (CDD)3882

Days you need AC

Heating Demand (HDD)1211

Days you need Heat

⚙️ Technical Factors

Wet Bulb75°F

High humidity load. Dedicated dehumidifier recommended.

Elevation650 ft

No derating needed.

Manual J Tip for TX

Because the design temperature difference (Delta T) in San Antonio is approximately 23°F (Summer) and 37°F (Winter), you have a balanced heating and cooling load requirement.

Installation Cost in San Antonio

Local labor rates and equipment standards in TX influence the final quote. For a standard 3-ton system changeout in San Antonio, calculate roughly $1,800 - $2,200 per toninstalled, depending on whether you choose a single-stage or variable-speed inverter unit.