Heat Only - OIL, GAS, PROPANE, ELECTRIC, HOT WATER - Information on this type of  
                     HVAC system type is available in the  Professional Reference Guide 

Heat / Cool - OIL, GAS, PROPANE, ELECTRIC, HOT WATER, COMPRESSOR COOLING
                     Information on this type of  HVAC system type is available in the Professional Reference Guide 

Heat pump - with or without auxilliary heat

Zoned - Hot Water

Zoned - Hot  Air

RVs - Recreational Vehicle systems

Swamp Coolers - Information on this type of  HVAC system type is available in the Professional Reference Guide 

Mobile Home - Information on this type of  HVAC system type is available in the Professional Reference Guide 

*GemTech thermostats are not compatible with 2 stage compressor heating or cooling.

Further information on identifying your HVAC system type is available in the Professional Reference Guide