Calculators
Sizing Calculators
Free tools to help size the right commercial hydronic equipment for your job.
Boiler BTU Sizing
Estimate required heating output for a replacement boiler.
Circulator Pump Sizing
Calculate GPM and total dynamic head to select the right pump.
Expansion Tank Sizing
Determine the minimum expansion tank size for a closed hydronic system.
Air & Dirt Separator Sizing
Find the right separator connection size based on system flow rate.
Balancing Valve Sizing
Determine the right circuit balancing valve size for a branch flow rate.
Tankless Water Heater Sizing
Estimate required BTU input based on fixture flow demand.