HVAC Load Calculators
Professional-grade HVAC load calculation tools designed for contractors, engineers, and building professionals. All calculators follow industry standards including Manual J, ASHRAE guidelines, and local building codes.
Residential Load Calculator
Calculate accurate heating and cooling loads for single-family homes, condos, and townhouses using Manual J methodology.
Key Features:
- Manual J compliant
- Single-family homes
- Condos & townhouses
- Instant results
Commercial Load Calculator
Professional load calculations for office buildings, retail spaces, and commercial facilities following ASHRAE standards.
Room-by-Room Calculator
Detailed room-level analysis for precise load distribution and zoning requirements in any building type.
Equipment Sizing Calculator
Size HVAC equipment based on calculated loads including furnaces, air conditioners, and heat pumps.
Geothermal HVAC Load Calculator
Specialized load calculations for geothermal HVAC systems including ground source heat pump sizing and loop requirements.
Key Features:
- Ground source heat pumps
- Loop field calculations
- Soil conditions
- High efficiency systems
Geothermal HVAC Cost Calculator
Estimate complete installation costs for geothermal HVAC systems including equipment, ground loops, and federal tax credits.
Key Features:
- Installation costs
- Federal tax credits
- Payback analysis
- Loop type comparison
Geothermal HVAC Sizing Calculator
Professional geothermal system sizing for ground source heat pumps based on building loads and site conditions.
Key Features:
- System sizing
- Ground loop design
- Performance optimization
- Site-specific analysis
Why Choose Our HVAC Calculators?
Industry Standards
All calculations follow Manual J, ASHRAE, and local building code requirements for accurate results.
Instant Results
Get immediate load calculations and equipment recommendations without waiting for software processing.
Location-Specific
Calculations include design temperatures and climate data for all 50 states and major cities.
Not Sure Which Calculator to Use?
Start with our Load Calculation Basics guide to understand the fundamentals, or contact us for personalized recommendations based on your project requirements.