Pros, Join Our TradeMaster Program!
The Robertshaw Climate™ RS1100 HEAT ONLY thermostat is an impressive new low cost thermostat. With a beautiful vibrant blue backlight, the RS1000 series is Simply The Right Choice™ for an economical programmable heat only thermostat for new and replacement residential applications. The thermostat can be configured for Fahrenheit or Celsius, and can be used as manual or 5-1-1 day programmable operation.

  • Heating Only
  • Selectable Fahrenheit or Celsius Display
  • 5-1-1 Day Programmable & Manual (non-programmable) Operation
  • 4 Events / Day
  • Temporary Override with Override Icon on Display
  • Adjustable Temperature Differential
  • Worry Free Memory Retention – Maintains programmed parameters even during power outages
  • HVAC equipment control using dry contact relays
  • Quick Wire Terminal Block – Uses sturdy wire clamps

  • Thermostat Family: RS1000 Series
  • Type: Electronic
  • HVAC Equipment: Gas, Electric, Oil
  • Control: Heat, Off
  • Humidity: No
  • Programmability: Non-Programmable/5-1-1 Day
  • Events/Day: 4
  • Voltage Type: Low
  • Voltage: 24V, Battery Required
  • Battery: Yes
  • Remote Sensors: No
  • Color: White
  • Orientation: Horizontal
  • Product Weight : 10 oz.
  • Electrical Contact Rating : 24V AC (18-30V AC) 1 amp maximum load per terminal
  • Temp. Control Range : 40°F to 90°F (5°C to 32°C)
  • Accuracy : ± 1°F (± 0.5°C)
  • Power : 2 AAA alkaline batteries included
  • System Configurations : Gas, electric, oil, and millivolt systems
  • Terminations : R, W
Read more
Manuals (1)
Heat Only
5-1-1 Day
1 Heat
Temperature Control Range:
40°F to 90°F (Heating)
Height (Inches):
Width (Inches):
Speak with a real person who will go out of their way to help!
Closed Now: Phone Hours
Monday – Thursday
8am–7:45pm ET
9am–7:45pm ET

4 Product Reviews

Product Q&A

Add-on Item

This item is cost-prohibitive to ship on its own but is available to ship with orders over $200.

Why don't we show the price of this item?

We try to always offer you the lowest prices possible, but some manufacturers require that we only show these low prices once you take further action.

To see the price, simply add the item to your cart or sign in.