Condensate Drain Line Calculator
AC Condensate Drain
Calculate condensate production and drain line size
Formula
Condensate (gal/hr) = Tonnage x 0.5 x Humidity Factor | Pipe size based on tonnage per code
Frequently Asked Questions
What size condensate drain line do I need?
Most residential AC systems (up to 5 tons) use 3/4 inch PVC drain lines. Larger systems may need 1 inch or larger. Always follow manufacturer specs and local code.
How much condensate does an AC produce?
A typical residential AC produces 5-20 gallons of condensate per day depending on tonnage and humidity levels. In humid climates, production is significantly higher.
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