---
product_id: 27651895
title: "Stelpro Z-Wave KI STZW402WB+ Thermostat (White) for Electric Baseboards and Convectors"
brand: "stelpro"
price: "$234.07"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/27651895-stelpro-z-wave-ki-stzw402wb-thermostat-white-for-electric-baseboards
store_origin: US
region: United States of America
---

# 240V line voltage power Remote app control Z-Wave Plus certified Stelpro Z-Wave KI STZW402WB+ Thermostat (White) for Electric Baseboards and Convectors

**Brand:** stelpro
**Price:** $234.07
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay warm, save smart — the future of heating is in your hands! 📲

## Quick Answers

- **What is this?** Stelpro Z-Wave KI STZW402WB+ Thermostat (White) for Electric Baseboards and Convectors by stelpro
- **How much does it cost?** $234.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/27651895-stelpro-z-wave-ki-stzw402wb-thermostat-white-for-electric-baseboards)

## Best For

- stelpro enthusiasts

## Why This Product

- Trusted stelpro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Energy-Saving ECO Mode:** Automate schedules to slash energy bills without lifting a finger.
- • **Smart Remote Climate Control:** Adjust your home’s temperature anytime, anywhere via your smartphone or computer.
- • **Certified Quality & Reliability:** UL certified, Canadian-made with a 5-year warranty for peace of mind.
- • **Seamless Smart Home Integration:** Sync with SmartThings, Vera, Nexia, Wink & more for advanced automations.
- • **First-in-Class Z-Wave Line Voltage:** Revolutionary 2-wire connection for electric baseboards, unmatched in North America.

## Overview

The Stelpro KI STZW402WB+ is North America’s first Z-Wave line voltage thermostat designed for electric baseboards and convectors. It offers remote temperature control via popular smart home platforms, energy-efficient scheduling with ECO mode, and advanced automation capabilities. UL certified and backed by a 5-year warranty, this sleek white thermostat delivers reliable, smart heating solutions for the modern connected home.

## Description

Stelpro Z-Wave KI STZW402WB+ Thermostat (White) for Electric Baseboards and Convectors

## Features

- UNIQUE Z-WAVE: The Stelpro KI is the first Z-Wave thermostat in North America to work with line voltage, with a 2-wire connection to the heater.
- EFFICIENT HEATING: Remotely control your baseboard and convector heaters from your mobile device or computer (when included to a Z-Wave gateway controller - sold separately).
- SAVE SMART: Set your own temperature schedules to reduce energy bills with minimal effort; take advantage of the device's ECO mode, designed to be as energy-efficient as possible.
- ELEVATED CLIMATE CONTROL: Create advanced automations by pairing the Stelpro KI with other Z-Wave devices. Trigger the heating on/off with a door/window sensor, temperature sensor, motion sensor, etc.
- CERTIFIED QUALITY: This thermostat is Z-Wave Plus and UL certified. Made in Canada. Works with SmartThings, Vera, HomeSeer, Nexia and Wink.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Stelpro |
| Model Name | STZW402WB+ |
| Controller Type | Nexia, SmartThings, Vera, Wink |
| Special Feature | UNIQUE Z-WAVE |
| Color | White |
| Included Components | Integrated Mechanical Thermostat |
| Power Source | Electric |
| Item Weight | 0.8 Pounds |
| Voltage | 240 Volts |
| Shape | Rectangular |
| Display Type | LCD |
| Control Type | Button Control |
| Control Method | App |
| Connectivity Protocol | Z-Wave |
| Mounting Type | baseboard |
| Style | Smart |
| Backlight | Yes |
| Specification Met | ul certified |
| Wattage | 4000.00 |
| UPC | 626296388587 |
| Global Trade Identification Number | 00626296388587 |
| Manufacturer | STELPRO |
| Part Number | STZW402WB+ |
| Item Weight | 12.8 ounces |
| Product Dimensions | 5.2 x 5 x 2 inches |
| Item model number | STZW402WB-PLUS |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Special Features | UNIQUE Z-WAVE |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | 5 year limited. |

## Product Details

- **Brand:** Stelpro
- **Model Name:** STZW402WB+
- **Controller Type:** Nexia, SmartThings, Vera, Wink
- **Special Feature:** UNIQUE Z-WAVE
- **Color:** White

## Images

![Stelpro Z-Wave KI STZW402WB+ Thermostat (White) for Electric Baseboards and Convectors - Image 1](https://m.media-amazon.com/images/I/513oQQ0GH6L.jpg)
![Stelpro Z-Wave KI STZW402WB+ Thermostat (White) for Electric Baseboards and Convectors - Image 2](https://m.media-amazon.com/images/I/51pSY+yD18L.jpg)
![Stelpro Z-Wave KI STZW402WB+ Thermostat (White) for Electric Baseboards and Convectors - Image 3](https://m.media-amazon.com/images/I/61IVHNdR1OL.jpg)
![Stelpro Z-Wave KI STZW402WB+ Thermostat (White) for Electric Baseboards and Convectors - Image 4](https://m.media-amazon.com/images/I/71WkrbAhsGL.jpg)
![Stelpro Z-Wave KI STZW402WB+ Thermostat (White) for Electric Baseboards and Convectors - Image 5](https://m.media-amazon.com/images/I/71Orsf9FMEL.jpg)

## Questions & Answers

**Q: I have a forced air wall heating unit. will this work with it? the unit is powered by 240 v line voltage and it takes 1500 watts power**
A: I've been looking for a smart thermostat that will work with a line voltage forced air heater (cadet).  In my searching, I see some indications that model# STZB402+ (the Zigbee version, not this Z-wave version) manufactured after January 2017 are compatible with with forced air heaters.  The zigbee version is available on amazon here: https://www.amazon.com/Stelpro-STZ402-Ready-Thermostat-ZigBee/dp/B01M645P7H/ Source for above info is here:  https://community.smartthings.com/t/release-stelpro-releases-its-ki-zigbee-line-voltage-thermostat-the-stzb402/69232

**Q: Is the thermostat itself supposed to run warm?**
A: I have mine hooked to 2 Radiant ceiling heating units.  It will run warm when it is heating the room, about what a very active smart phone will feel like.

The manual lists normal operating temperatures of  55°C (131°F), so it should be fine unless it is getting too hot to touch.

**Q: Do I have to have an in-wall thermostat for this to work, or can I use it to replace the on-the-baseboard heater dial thermostat?**
A: It's for an in wall, so yea you must have an in wall.

**Q: The reviews aren't really clear as to whether this should work with an overhead radiant quartz heater (no fan) such as asin b00gc2yelg. any ideas?**
A: This thermostat is meant to directly switch 240V AC. If your heater is 240V and under the max amperage, I think 20a but don't remember for sure, then yes this should work.

## Frequently Bought Together

- Stelpro Z-Wave Plus KI STZW402WB+ Thermostat (White) for Electric Baseboards and Convectors
- Aeotec Smart Home Hub, Works as a SmartThings Hub, Z-Wave, Zigbee, Matter Gateway, Compatible with Alexa, Google Assistant, WiFi

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-05*