What type of
heating and cooling system is in
your home? There are three application
types of thermostats that are designed
to control virtually all residential
heating and cooling systems. You
must identify which application
type best matches your heating and
cooling system. The three application
types are:
1. single stage
2. staging heat pump
3. staging fossil fuel
(note: your heating and cooling
technician can evaluate your
system and choose the proper
application type)