HVAC Calculators

Furnace Size Calculator | Find the Right Furnace for Your Home Furnace Size Calculator Find the right size furnace for your home based on square footage, climate, and other important factors. Home Square Footage: Climate Zone: Select your climate zoneHot (Southern states like Florida, Arizona)Moderate (Central states like California, Texas)Cold … Read more

Mini-Split Sizing Calculator Determine the right size mini-split system for your space by answering a few simple questions. Step 1: Room Dimensions Room Length (ft): Room Width (ft): Ceiling Height (ft): Next Step 2: Room Characteristics Room Type: Standard Room (Bedroom, Living Room)KitchenSunroom/PatioBasement Insulation Quality: Well InsulatedAverage InsulationPoorly Insulated Sun … Read more

Air Change per Hour (ACH) Calculator CFM (Cubic Feet per Minute): Room Volume (in cubic feet): Calculate ACH Air Changes per Hour (ACH): N/A if (isNaN(cfm) || isNaN(roomVolume) || cfm

CFM Calculator Room Volume (in cubic feet): Desired Air Changes per Hour (ACH): Calculate CFM Required CFM: N/A if (isNaN(roomVolume) || isNaN(airChanges) || roomVolume

Duct Size Calculator Calculate the perfect duct size for your HVAC system. Get accurate results in seconds. Airflow (CFM): Typical range: 100-2000 CFM Air Velocity (FPM): Recommended: 700-900 FPM for supply, 500-700 FPM for return Calculate Duct Size Round Duct Diameter — inches Rectangular Duct Size — inches Cross-Sectional Area … Read more

Air Conditioner BTU Calculator – Find the Right AC Size Air Conditioner BTU Calculator Find the perfect air conditioner size for your room by calculating the required BTU (British Thermal Units). Room Length (feet) Room Width (feet) Ceiling Height (feet) Sunlight Exposure Normal (Little or no shade)Partial (Some shade during … Read more

Refrigerant Charge Calculator Calculate the correct refrigerant amount for your system. Fill in your equipment details below. Get precise results. Line Set Length (ft) Line Set Size Select size3/8″ liquid line1/4″ liquid line1/2″ liquid line Unit Capacity (tons) Refrigerant Type Select typeR-22R-410AR-134aR-404A Factory Charge (oz) Calculate Charge Refrigerant Charge Results … Read more

Subcooling Calculator Measure your refrigerant’s subcooling level. Enter your system measurements below. Get accurate results instantly. Liquid Line Temperature (°F) Saturation Temperature (°F) Refrigerant Type Select refrigerantR-22R-134aR-404AR-410AR-407COther Calculate Subcooling Subcooling Results Subcooling Value: 0 °F System Status: – What This Means 0-5°F: Low subcooling (Possible undercharge) 6-12°F: Ideal range (Proper … Read more

Cooling Load Calculator Estimate the cooling capacity needed for your space. Get results in BTU/hr and tons. Room Information Room Length (ft) Room Width (ft) Ceiling Height (ft) Number of People Environmental Factors Climate Zone Hot/HumidWarmModerateCool Sun Exposure Heavy SunModerate SunShaded Insulation Quality PoorAverageExcellent Appliance Heat (watts) Calculate Cooling Load … Read more

Manual D Duct Sizing Calculator Calculate proper duct sizes for HVAC systems. Based on ACCA Manual D standards. System Information Airflow (CFM) Duct Type Flexible DuctSheet MetalFiberglass Duct Friction Rate (in. wg/100ft) 0.08 (Low Velocity)0.1 (Standard)0.12 (High Velocity) Duct Dimensions Duct Shape RoundRectangular Diameter (inches) Width (inches) Height (inches) Duct … Read more