Psychrometric Chart Calculator: Air States and HVAC Processes
Wired White v1 Solve moist-air states from two independent properties and plot HVAC processes. Calculate coil duty, air mixing, humidification and condensate at your site pressure.
Thermal
Wired White v1 
Duct Size Calculator and HVAC Fan Curve
Wired White v1 Size a five-segment duct tree by equal friction, calculate fitting and balancing losses, and match the system to a blower curve. Supports round and rectangular ducts.
