Smart digital underfloor heating thermostat | temperature controller with sensor | 16A | 230VAC | +5...+35°C | IP21 | white | Wi-Fi | Glamox Heating | GFWT 3 WHITE
Code: GFWT-3-WPrice 109.72 € VAT incl.( 90.68 € VAT excl. )Buy more, pay less10+ pcs. – 102.69 € for pcs. -6%Want another price? Suggest yours!GLAMOX GFWT3 – a smart flush-mounted thermostat for electric underfloor heating, designed for a 230 V AC supply and loads up to 16 A. It can control heating based on room or floor temperature, includes a floor sensor, offers Wi-Fi control via the “Glamox Heating WiFi” app, weekly programming, open-window detection, and a power regulation function. The thermostat can also operate without an internet connection and has an IP21 protection rating.
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Underfloor heating thermostat | Wi-Fi | 230 V AC | 16 A | 5–35 °C | room + floor sensor | white | GLAMOX GFWT3
GLAMOX GFWT3 is a white smart flush-mounted thermostat designed for controlling electric underfloor heating and other compatible electric heating systems. The thermostat can regulate heating according to room or floor temperature, control loads up to 16 A and be operated remotely through the Glamox Heating WiFi app. The integrated weekly program also operates independently, so a permanent internet connection is not required for basic programmed heating control.
Key pointGFWT3 combines room and floor temperature control, Wi-Fi control, weekly programming, open-window detection and power regulation in one device. The thermostat operates from a 230 V AC supply, has a normally open NO contact, supports a maximum contact load of 16 A and is supplied with a floor sensor. Compatibility with most floor temperature sensors allows it to be used both in new installations and when replacing an older thermostat.
Maximum load
16 ASupply
230 V ACTemperature range
5–35 °CProtection
IP21Operating principle
GLAMOX GFWT3 is installed flush-mounted and controls the connected electric heating system through a normally open (NO) contact. Maximum contact voltage is 230 V, while maximum contact load is 16 A.
The thermostat can use room temperature measurement and an external resistive floor sensor. The temperature adjustment range is 5–35 °C, while the current and set temperatures are shown on the integrated display.
Room and floor temperature control
Room temperature
The thermostat can monitor and regulate room temperature, so it can also be used as a conventional electronic room thermostat.Floor temperature
The included external resistive floor sensor allows the floor temperature to be monitored and enables GFWT3 to be used in electric underfloor heating systems.Floor sensor compatibility
GFWT3 uses a resistive temperature sensor and is compatible with most floor sensors. This is practical when replacing an older thermostat where a sensor is already installed in the floor and additional floor work is to be avoided. Before connecting an existing sensor, its electrical parameters and compatibility with GFWT3 must be checked.
Wi-Fi control via Glamox Heating WiFi
Once the thermostat is connected to the network, temperature and heating settings can be controlled remotely through the Glamox Heating WiFi app. This allows heating to be adjusted from a phone or tablet regardless of location, provided the thermostat and mobile device have the required network connection.
Weekly program and standalone operation
GFWT3 has an integrated weekly program. Once a heating schedule has been configured, the thermostat can continue running the programmed temperature modes without active control from the app. Therefore, loss of internet access does not cancel the weekly heating schedule stored in the thermostat itself.
Open-window detection
The integrated open-window detection function is designed to reduce unnecessary heating when room temperature drops quickly due to ventilation. This helps avoid the heating system operating intensively while the room is being actively ventilated.
Power regulation
GFWT3 has a power regulation function that allows the thermostat to be adapted to different electric heating control scenarios. The specific power regulation parameters and setting method should be selected according to the manufacturer's instructions and the characteristics of the heating system used.
Smart Home integration
Google Assistant
CompatibleAmazon Alexa
CompatibleApple HomeKit
Not supportedIFTTT
Not supportedStandby power consumption
The specified standby power consumption of the thermostat is 0.5 W. This is the power consumption of the controller itself in standby mode and should not be confused with the power of the connected heating system.
Technical specifications
Product type Smart underfloor heating thermostat Manufacturer / brand GLAMOX Model GFWT3 Colour White RAL colour RAL 9016 Control principle ON/OFF Supply type 230 V AC Connection 3–4 wire Contact type Normally open (NO) Maximum contact voltage 230 V Maximum contact load 16 A Temperature / measuring range 5–35 °C Sensor type Resistance sensor External sensor Yes Floor sensor included Yes Room temperature control Yes Temperature display Yes Display Yes Local operation Buttons Acoustic indicator No Wi-Fi control Yes, Glamox Heating WiFi app Weekly program Yes, can operate without network connection Open-window detection Yes Power regulation Yes Temperature controller class II Standby power consumption 0.5 W Suitable for heating Yes Number of heating outputs 1 Suitable for cooling No Number of cooling outputs 0 Adjustable differential Yes Specified differential value 5–35 K Installation method Flush-mounted Number of modules 1 Ingress protection IP21 NEMA protection rating 2 Explosion-proof No Height 84 mm Width 84 mm Depth 40 mm Dimensions 84 × 84 × 40 mm Package dimensions 44 × 86 × 86 mm Volume 0.325 l Weight 0.16 kg Google Assistant Yes Amazon Alexa Yes Apple HomeKit No IFTTT No Where is it used?
- Electric underfloor heating systems.
- Electric heating cables.
- Electric floor heating mats.
- New underfloor heating installations.
- Replacement and upgrade of existing thermostats.
- Applications where a floor sensor compatible with GFWT3 is already installed.
- Homes, apartments, offices and other indoor areas requiring programmable electric heating control.
Use by application
For a new underfloor heating system
The included floor sensor allows the thermostat to be used as a complete temperature controller for a new electric underfloor heating system.For replacing an existing thermostat
Compatibility with most resistive floor sensors may allow the already installed sensor to be reused, but its parameters must be checked before connection.For smart control
Glamox Heating WiFi, Google Assistant and Amazon Alexa provide additional remote and smart control options.Installation recommendations
- Disconnect the electrical supply before installation.
- Install the thermostat flush-mounted in a suitable installation box.
- Connect the 230 V AC supply and heating load according to the manufacturer's wiring diagram.
- Connect the floor temperature sensor.
- If an existing sensor is used, verify its compatibility before connection.
- Make sure the connected heating system current does not exceed 16 A.
- After installation, configure the temperature and weekly program settings.
- For remote control, pair the thermostat with the Glamox Heating WiFi app.
Design and usage notes
- Rated supply voltage – 230 V AC.
- Maximum contact load – 16 A.
- A normally open NO contact is used.
- Before connecting the heating system, check its rated current and total power.
- The thermostat is intended for heating control; cooling control is not provided.
- Compatibility with “most floor sensors” does not mean universal compatibility with every sensor.
- IP21 does not mean the device is suitable for direct water exposure or outdoor installation.
- A suitable network connection is required for remote app functions.
- Electrical installation must be carried out by a qualified professional in accordance with the manufacturer's documentation and applicable electrical installation requirements.
Advantages
- Contact load up to 16 A.
- 230 V AC supply.
- Wi-Fi control via Glamox Heating WiFi.
- Room and floor temperature control.
- Floor sensor included.
- Compatible with most floor sensors.
- Integrated weekly program.
- Weekly program can operate without network access.
- Open-window detection.
- Power regulation function.
- Integrated display.
- Google Assistant support.
- Amazon Alexa support.
- Low standby consumption – 0.5 W.
- Suitable for new installations and upgrades.
Limitations / considerations
- Maximum load is limited to 16 A.
- Designed for heating – no cooling output.
- A fixed 230 V AC electrical connection is required.
- Compatibility of an existing floor sensor must be checked.
- IP21 is not intended for outdoor use or direct water exposure.
- Apple HomeKit is not supported.
- IFTTT is not supported.
Quick selection guide
230 V AC | 16 A | 5–35 °C | Wi-Fi | room + floor sensor | IP21 | 84 × 84 × 40 mm | RAL 9016Suitable when you need: to control electric underfloor heating up to 16 A and have both remote Wi-Fi control and a local weekly program.Especially practical: when replacing an older thermostat and you want to retain an already installed compatible floor sensor.Before purchasing, check: the heating system current and power, existing floor sensor parameters, wiring diagram and suitability of the flush-mounted installation box.FAQ
What is GLAMOX GFWT3 designed for?
For temperature control of electric underfloor heating and other compatible electric heating systems.What is the maximum thermostat load?
Maximum contact load is 16 A.What is the maximum contact voltage?
230 V.What type of contact is used?
Normally open – NO.Is a floor sensor included?
Yes. A floor temperature sensor is supplied with the thermostat.Can an existing floor sensor be used?
GFWT3 is specified as compatible with most floor sensors, but the parameters of the specific sensor must be checked before connection.Does the thermostat work without internet?
Yes. The integrated weekly program can operate locally; internet access is required for remote app control.Does it support Google Assistant?
Yes.Does it support Amazon Alexa?
Yes.Does it support Apple HomeKit?
No.What are the thermostat dimensions?
84 × 84 × 40 mm.What is the ingress protection rating?
IP21.How much power does the thermostat consume in standby?
Specified standby power consumption is 0.5 W.GLAMOX GFWT3 | underfloor heating thermostat | Wi-Fi | 230 V AC | 16 A | room + floor sensor | white
GLAMOX GFWT3 is a smart white RAL 9016 flush-mounted thermostat for electric underfloor heating control. It is designed for a 230 V AC supply, uses a normally open NO contact and can control loads up to 16 A. The thermostat supports room and floor temperature control, the Glamox Heating WiFi app, an integrated weekly program, open-window detection and power regulation. GFWT3 is also compatible with Google Assistant and Amazon Alexa, has IP21 protection, measures 84 × 84 × 40 mm and has a standby power consumption of 0.5 W.
Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.This product is marked with the CE label, which confirms that it complies with all applicable European Union directives and regulations. CE marking is not just a formality – it is an important indicator of quality and safety, ensuring that the product has been properly assessed, tested, and can be safely used throughout the EU market.
CE certification means that the product has been evaluated according to the main criteria:
Safety requirements – ensures that the product does not pose a risk to the user or the environment
Electromagnetic compatibility (EMC) – the device does not interfere with other equipment and is resistant to external disturbances
Environmental standards – complies with current ecological and material usage requirements
Operational reliability – the product is suitable for long-term use according to its intended purposeCE marking allows this product to:
be legally supplied and used in all European Union countries
ensure a high level of quality and safety
be used in residential, commercial, and industrial environmentsThe CE mark is a declaration of the manufacturer’s responsibility, confirming that the product complies with all applicable standards and has been assessed according to EU legislation.
What does this mean for you as a buyer?
Safe use in everyday activities
Reliable performance and reduced risk of failure
Compliance with EU standards and requirements
Suitability for professional solutions
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