Smart ZigBee Thermostat for Heating Systems & Gas Water Heaters
The thermostat is intended to be used for controlling underfloor heating or other solutions and can handle up to 3A, i.e. approximately 650 Watts.
This product uses ZigBee and requires a compatible hub/gateway to be controlled via Stonehouse Smart App.
The advantage of ZigBee compared to WiFi is that it provides a more stable smart home network, reduces the load on the regular WiFi network and is especially good when many smart devices are used simultaneously.
We recommend our Multihub GW60-Matter, a wired ZigBee gateway with support for Matter, ZigBee and Thread.
Customized heating control for your everyday life
The ZWT198 ZigBee smart thermostat makes it easy to control the temperature in your home, office or holiday home. You can choose between several operating modes and create your own weekly schedules that adapt the heating to your routines.
The product uses ZigBee and is controlled via the Stonehouse Smart App. It is also compatible with Tuya Smart and Smart Life.
Weekly schedule that fits your routines
Adjust the heating according to the week. The thermostat can be programmed with different temperature settings for different days and times.
For example, you can raise the temperature in the morning, lower it when no one is home, and then automatically raise the heat again for the evening. This provides both better comfort and more energy-efficient operation.
Full control in the Stonehouse Smart App
Via the Stonehouse Smart App you can control the thermostat directly from your mobile phone, no matter where you are. Adjust temperature, change operating mode, create schedules and share access with other users in the home or property.
The product is also compatible with Tuya Smart and Smart Life for flexible use in smart home systems.
Safety and convenience
The ZWT198 has several smart safety features that make it safe to use in everyday life. Frost protection helps protect the heating system at low temperatures, while a child lock prevents accidental changes to the settings.
This makes the thermostat particularly practical in homes, holiday homes, offices and properties where stable and safe heating control is important.
Easy installation and precise temperature control
The thermostat provides accurate temperature control for a consistent and comfortable indoor climate. The temperature calibration function allows you to fine-tune the measurement to the installation conditions.
Since the product is battery-powered, no separate mains power supply is required, making placement flexible and installation easier.
Smart scenarios and automations
In addition to direct temperature control, the thermostat can be used in smart scenarios together with other products in the Stonehouse Smart App. This allows the heating system to interact with relays, sensors and other smart devices for more flexible and energy-efficient control.
Example scenarios:
Automatically lower the temperature when no one is home
Turn up the heat for morning or homecoming
Activate a smart relay at low temperature
Start additional heat source if there is a risk of freezing
Send notification if the temperature goes below the selected limit value
Combine with door and window sensors to reduce unnecessary heating
Create weekly schedules for weekdays, weekends and vacation homes
This makes the thermostat part of a larger smart home system, not just a standalone heating controller.
Specifications
Product type: Smart thermostat
Model: ZWT198
SKU: SM-ZWT198
Communication: ZigBee
App control: Stonehouse Smart App
Gateway required: Yes
Recommended hub: Multihub GW60-Matter
Temperature sensor: NTC
Temperature accuracy: ±1°C
Temperature hysteresis: 0.5~10°C
Temperature calibration: 0.1°C
Minimum temperature setting: 0.5°C
Temperature limit: 15°C to 95°C
Operating modes: 3 pcs
Weekly schedule: Yes
Power consumption: <170uW
Power supply: 3 × AAA batteries
Load: 3A
Protection class: IP20
Display: LCD display
Mounting: Wall mounting
Dimensions: 86 × 86 × 28 mm
Color: White
Features: Child lock, frost protection, scheduling, temperature calibration
Features: Child lock, frost protection, scheduling, temperature calibration
Frequently asked questions
What is Smart ZigBee Thermostat for Heating Systems & Gas Water Heaters?
It is a smart ZigBee thermostat used to control heating systems, underfloor heating and gas water heaters. The thermostat helps you automate heating for increased comfort and energy efficiency.
Which heating systems can the thermostat be used with?
The thermostat is intended for controlling underfloor heating, gas water heaters and other compatible heating systems with a load of up to 3A.
How high a load can the thermostat handle?
The thermostat can handle up to 3A load, which corresponds to approximately 650 Watts depending on installation.
Does the thermostat require a hub or gateway?
Yes, the product uses ZigBee and requires a compatible ZigBee hub or gateway to work with the Stonehouse Smart App.
Which hub is recommended?
We recommend the Multihub Avatto GW60-Matter, a wired gateway with support for Matter, ZigBee and Thread.
Why should I choose ZigBee instead of WiFi?
ZigBee provides more stable communication, lower energy consumption and reduces the load on the regular WiFi network. The technology is particularly well suited for smart homes with many connected devices.
What apps does the thermostat work with?
The thermostat is compatible with Stonehouse Smart App, Tuya Smart and Smart Life.
Can I control the temperature from my mobile phone?
Yes, via the Stonehouse Smart App you can adjust temperature, change operating mode, create schedules and monitor the system directly from your mobile phone.
Can I create weekly schedules?
Yes, the thermostat supports programmable weekly schedules so that the temperature can automatically adjust to your daily routines.
How many operating modes are there?
The thermostat has three different operating modes for flexible control of the heating system.
Can the temperature be automatically lowered when no one is home?
Yes, using schedules and automations, the temperature can be automatically adjusted to save energy when the home is empty.
Does the thermostat have a child lock?
Yes, the thermostat has a built-in child lock that prevents settings from being changed accidentally.
Does the thermostat have freeze protection?
Yes, the frost protection function helps protect the heating system at low temperatures.
How accurate is the temperature measurement?
The thermostat has a temperature accuracy of ±1°C and supports temperature calibration with 0.1°C adjustment.
Can the temperature be calibrated?
Yes, the thermostat has a temperature calibration function so that the measurement can be fine-tuned according to the installation conditions.
Which temperature sensor is used?
The thermostat uses an NTC temperature sensor for accurate temperature monitoring.
How is the thermostat powered?
The thermostat is powered by three AAA batteries and does not require a separate mains supply.
Can the thermostat be used in smart automation?
Yes, it can be integrated with relays, sensors, and other smart products to create advanced scenarios and automations.
What smart scenarios can be created?
For example, the temperature can be lowered when no one is home, the heat can be raised before returning home, a relay can be activated at low temperatures or notifications can be sent if the temperature deviates from desired levels.
What is Stonehouse Smart?
Stonehouse Smart is an app developed and updated by Swedish Stonehouse Security together with its partner Tuya Inc. The app is used to control and automate smart home products such as thermostats, sensors, relays, lighting, cameras and alarms from a common platform. Through the app you can create automations, receive push notifications and control your devices no matter where you are.
WiFi or Zigbee? Which technology is best for your smart home?
❓ What is the difference between WiFi and Zigbee?
Answer: WiFi devices connect directly to your wireless network and do not require an additional gateway. Zigbee instead uses its own Mesh network and requires a Zigbee Gateway to communicate with the Stonehouse Smart app. WiFi is great for cameras and relays, while Zigbee is ideal for sensors and larger smart homes.
❓ Do I need a Zigbee Gateway?
Answer: Yes. To use Zigbee products, you need a Stonehouse Smart Zigbee Gateway. The gateway connects to your router and acts as the hub that allows all Zigbee devices to communicate with each other and with the Stonehouse Smart app.
❓ Do WiFi products need a gateway?
Answer: No. WiFi products connect directly to your existing WiFi network and do not require a separate gateway or hub.
❓ Can I use WiFi and Zigbee at the same time?
Answer: Yes. Stonehouse Smart is designed to support both WiFi and Zigbee products in the same app. Many people choose to combine the technologies to create a flexible and future-proof smart home.
❓ Why does Zigbee have such a long battery life?
Answer: Zigbee sensors are in sleep mode most of the time and only activate when they need to send information, such as movement, temperature changes or when a door is opened. This provides very low power consumption and long battery life.
❓ How does Zigbee Mesh work?
Answer: Many Zigbee devices powered by 230V act as repeaters and send the signal to the next device. In this way, a Mesh network is built that provides better coverage and higher stability the more fixed Zigbee devices are installed.
❓ Which Zigbee devices work as repeaters?
Answer: Most Zigbee devices that are powered by 230V, such as relay modules, dimmers, smart plugs and wall switches, normally work as repeaters. Battery-powered sensors usually do not work as repeaters.
❓ How long is the range of Zigbee?
Answer: The range is affected by walls, building materials and other obstacles. Typically, the range is about 10 to 25 meters indoors between two Zigbee devices. Thanks to Mesh technology, the total coverage can be significantly greater when more devices are installed.
❓ Is WiFi or Zigbee best?
Answer: It depends on the application. WiFi is an excellent choice for cameras, relays, energy metering and products that need direct internet connection. Zigbee is best suited for sensors, automation and larger installations where long battery life and stable communication are important.
❓ What is Stonehouse Smart?
Answer: Stonehouse Smart is a growing ecosystem for smart homes where WiFi and Zigbee products work together in the same app. The range is continuously developing and includes smart lighting, electrical control, cameras, security, climate, irrigation and other smart solutions for homes and businesses.
Safety and convenience
Safety and convenience