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Programmable Temperature Control Can Help Reduce Energy Costs by 25%
Robertshaw RS3110 Economy Digital 5/2 Day Programmable Thermostat 1 Heat / 1 Cool
Robertshaw RS3110 Economy Digital 5/2 Day Programmable Thermostat 1 Heat / 1 Cool
Robertshaw RS3110 Economy Digital 5/2 Day Programmable Thermostat 1 Heat / 1 Cool
Item# 29914
Price: Normally $54.62 
Hot Deal $28.34
Free shipping on orders over $175 - See Details


  • Simple touch button controls to set weekly programs for summer and winter
  • Automated temperature settings for increased heating/cooling comfort
  • Low temperature freeze protection turns heat on to prevent pipes from freezing
  • Fully compatible with all standard 24V AC heating and cooling systems

Essential Info

With the comfort, convenience, and efficiency features that homeowners and contractors want, the RS3110 thermostat provides custom program options in an economical and value-packed thermostat. Installation is fast and easy with its quick-wire terminal block - using sturdy wire clamps instead of wrap-around screws.

The thermostat’s 5-2 day programming allows you to set the weekly program once with four time and temperature settings. The four setpoints are followed for five consecutive days. On the weekend, four different setpoints can be set for all day comfort. A big, bright backlight makes viewing and setting the temperature very easy while the adjustable temperature differential maintains optimal customer comfort. Its built-in filter monitors provide notice when filters are ready to be changed.



  • Weight: 11.2 oz
  • Electrical rating: 24V AC (18-30V AC), 1 Amp maximum load per terminal, 3 Amp total maximum load (all terminals combined)
  • Temperature control range: 45 to 95 degrees F (7 to 35 degrees C)
  • Accuracy: +/= 1 degrees F (+/- 0.5 degrees C)
  • Power: 3.0V DC (2 AA alkaline batteries included)
  • System configurations: Single stage electric, gas, oil, or millivolt heating or heating/cooling systems including single stage heat pump systems
  • Terminations: G, RC, RH, Y/O W/B, Y1
  • Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: Johnstone Supply, Tel: (503) 256-3663


    5 Ratings
    5 star: 40%  (2)
    4 star: 20%  (1)
    3 star: 0%  (0)
    2 star: 0%  (0)
    1 star: 40%  (2)
    Average Customer Rating
    (5 customer ratings)
    Share your thoughts with other customers
    CHARLES E. -- easley, SC   4/5/2012
    Had H/V man install on my new system and it works great. Easy to program, fantastic price.
    Tyler -- pittsburgh, Pennsylvania   3/26/2012
    do not get this thermostat if you are poor when it comes to technology then this is the complete wrong one it is overly complicated to set and to program was very upset with this buy.
    JANE -- mill valley, CA   3/11/2012
    This thermostat never was able to get the basic room temperature right-- the temperature its thermometer element registered didn't ever agree with two other old-style mercury thermometers in the same room. This meant it also could not regulate the heat correctly. In addition, even when I did my best to set it on "hold," and the screen said it was on hold (i.e, set to maintain the temperature manually requested) it continued to follow its preset programs. I returned it. The product was either a bad unit or ridiculously inferior. Smarthome is fine, and credited my refund right away. (They offered an exchange, but I'd already bought and installed a regular manual thermostat from my local hardware store--I was tired of being cold and had no interest in trying another of these.)


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