HVAC Dew Point & Condensation

HVAC Dew Point & Condensation works out the dew point from the air temperature and humidity you enter and sets it against the temperature of a window, wall or pipe. See the margin, the humidity at which condensation can start, and which of your spots has the least room left. Switch between °F and °C and save your checks on the phone. What's inside • Dew point from air temperature and relative humidity, with the working shown • Up to 8 spots (rooms, windows, pipes, ducts) side by side, the tightest one first • Margin between the surface and the dew point, marked as possible, close or clear • The humidity at which condensation can start at a given surface temperature • A simple temperature line for every spot, with dew point, air and surface marked • °F or °C, light and dark themes, up to 20 saved checks you can copy or share Worked out from the numbers you enter. It measures nothing, cannot say that condensation will or will not happen, and does not diagnose mold or building problems. Below freezing, moisture can turn to frost instead of dew.