Stelpro KI STZW402+ Smart Thermostat for Electric Baseboard Heaters

  • $99.99

The Stelpro KI STZW402+ Smart Thermostat for Electric Baseboard Heaters works with 120V and 240V baseboard heaters and convectors and lets you seamlessly control and monitor the temperature in your home, allowing you to create the ideal atmosphere at all times. You will also be able to set schedules that allow you to warm up your home before you get home.


  • Control Your Baseboard Heaters from Anywhere
    A smart solution for your electric baseboard heaters that lets you remote control and monitor your home's heating from anywhere from your mobile device. 
  • Save Energy and Money
    You can set schedules for your thermostat which allows you to control the heating in your home and save up to 10-15% on your energy bill. The device also has an ECO mode that runs the device as energy-efficient as possible. 
  • Elevated Climate Control
    You can create advanced automation by pairing the Stelpro KI STZW402+ Smart Thermostat with other Z-Wave devices. For example, you can set up triggers to turn the heating down when windows or doors are opened. 
  • Set Schedules
    Never come home to a cold house again. Set schedules that will turn the thermostat on at a certain time to warm up your house before you get home. Alternatively, you can set it to schedule the time it turns the thermostat off.
  • Choose from three functions: Comfort, Economy and Off
    Choose from three pre-programmed functions of Comfort: 21 °C (70 °F), Economy: 17 °C (63 °F), or Off depending on your comfort needs. 
  • Outdoor Temperature Display
    Displays outdoor temperature provided by an external sensor, so you're always prepared for the outside elements. 



 Z-Wave Plus

Works with

Compatible with all major home automation systems including Vera, Leviton HAI, Smartthings, Homeseer and more

Heating System

  • Works with baseboard heaters and convectors
  • Does NOT support heaters with fans Not compatible with Inductive load or Central heating system (How to tell what type of heating system I have?)
  • 120V 150W-2000W
  • 240V 300W to 4000W
  • 2 wire connection compatible with both 2 wire and 4 wire installations


Technical Specifications

  • Wattage and Voltage:
    • 150 W to 2000 W @ 120 V
    • 300 W to 4000 W @ 240 V
  • Amperage (amp): 16.7
  • Frequency (Hz): 50/60
  • Temperature Range: 5 to 30 °C (41 to 86 °F)
  • Temperature Display: Celsius or Fahrenheit
  • Warranty: 3 years
  • Includes:
    • 1x thermostat
    • 1x wall mounting plate located at the back of the thermostat
    • 2x mounting screws
    • 2x solderless connectors suitable for copper wires


Installation Guide

User Guide

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