2 STAGE FURNACE THERMOSTAT WIRING HEAT
Two-stage furnace, One-stage thermostat - hvac-talk
Nov 11, 2007Two-stage furnace, One-stage thermostat However, the existing thermostat is a one-stage type. I understand this means when the thermostat calls for heat the furnace kicks on at low heat output, and then if it runs for over 10 minutes it will bump up to high heat output, whereas a two-stage thermostat could be smarter about when to call for high heat output.Heat Pump and 2 stage furnace wiringMay 19, 2017How many thermostat wires needed for 2-stage stat?Jul 19, 20162 Stage Thermostat?Oct 04, 2012Best Thermostat to Pair with Variable Two-Stage Furnace?Dec 27, 2005See more results
How to Connect the Thermostat to a Two Stage Forced Air
A two stage furnace works like this: your thermostat calls for heat and the furnace kicks on low. After a predetermined amount of time, if it has not satisfied the temperature, it kicks up to high until the temperature is satisfied. For this extra stage, you need to connect one additional wire to your furnace and your thermostat.