HVAC Sizing Assistant

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❄️ Refrigerant Charge Calculator

System Size (Tons)

Nominal tonnage of your AC/heat pump

Refrigerant Type

Line Set Length (ft)

Distance from outdoor to indoor unit

Factory Line Set Allowance (ft)

Typically 15-25 ft per manufacturer spec

0 lbs

Total Refrigerant Charge

⚠️ Licensed Technicians Only: EPA Section 608 certification is required to purchase and handle refrigerants. Only licensed HVAC technicians should charge refrigerant. These calculations are estimates for planning purposes only.

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