Rheem 200 Series Thermostats

The Best-Selling Digital Thermostat Keeps Getting Better

Rheem has enhanced their newest 200-Series programmable digital thermostat with a larger, lighted 4-inch blue display. It now offers more control, more convenience and more value than the competition. And it’s backed with the reputation of Rheem – pioneers in home comfort.


  • Fast and easy to program
  • Electronic accuracy
  • Permanent program retention
  • Lighted display
  • Easy-to-wire terminal block


  • Patented pre-programmed software simplifies time and temperature programming
  • Choice of 7 day, 5/1/1or 5/2 programmable or non-programmable operation
  • 4 time and 4 temperature settings per program (heat & cool)
  • Energy savings up to 33%


  • 40% larger LCD with improved contrast for easier reading
  • Lighted display for easier low-light viewing
Model Performance Application Power Source
RHC-TST211GESS Single-Stage Heat/ 
Single-Stage Cooling
Gas/Oil/Electric Battery/Hardwired
RHC-TST213UMMS 2-Stage Heat/
2-Stage Cooling
Heat Pump

5 Years from date of purchase.