Every tool runs in your browser, so it keeps working with one bar of signal.
Enter your line temps and saturation temps; get superheat and subcooling instantly.
Target superheat for piston and cap-tube systems from indoor wet bulb and outdoor dry bulb.
CFM and friction rate in; round and rectangular duct size, velocity and friction out.
Estimate furnace CFM from input BTU, efficiency and the supply/return temperature rise.
Measured amps and volts to microfarads, with a pass/fail against the rated value.
Tons, BTU/h and kW; °F and °C; psi, kPa and in. w.c.; CFM and L/s; oz, lb and kg.