ENGO E901-WIFI-UK Smart WiFi Wireless Thermostat – App, Alexa & Google Control, No Hub | Gas, Oil & Heat Pump
ENGO E901-WIFI-UK Smart WiFi Wireless Thermostat – App, Alexa & Google Control, No Hub | Gas, Oil & Heat Pump
The ENGO E901-WIFI-UK is a smart wireless thermostat that puts full heating control in your pocket — no gateway hub required. The 2.4 GHz Wi-Fi module is built directly into the mains receiver, so you get app control, Alexa and Google voice commands, and 7-day scheduling right out of the box. The battery-powered thermostat communicates over 868 MHz RF to the receiver, which connects to your existing boiler. Boiler Plus compliant with a 5-year warranty.
Why Choose the ENGO E901-WIFI-UK?
No gateway, bridge, or extra hub needed — the receiver connects directly to your home Wi-Fi for instant smart control.
Control temperature, set schedules, and monitor heating remotely from anywhere via iOS or Android.
Voice-activate your heating: "Alexa, set the heating to 20 degrees" — works with all Echo and Google devices.
Up to 6 setpoints per day, every day — programme your heating to match your lifestyle perfectly.
No thermostat wiring needed — 2×AA batteries power the thermostat head for over a year of typical use.
TPI control provides smart modulating control that reduces temperature overshoot and saves energy.
TPI algorithm satisfies UK Boiler Plus requirements (Part L) for new boiler installations.
The thermostat maintains its schedule and last setpoint if the internet connection is lost — heating keeps running.
Lock the thermostat with a PIN to prevent unwanted changes — great for rentals and family homes.
Stylish large-display thermostat with a hidden sliding panel — clean and unobtrusive on the wall.
One-touch boost for extra warmth, and holiday mode keeps pipes safe while you're away.
Full 5-year manufacturer's warranty for long-term reliability.
Suitable For
About the E901-WIFI-UK
The E901-WIFI-UK is the smart upgrade to the E901-RF. It is a two-part system: the battery-powered thermostat head mounts on the wall or desk stand anywhere in the room, while the mains receiver wires to the boiler. The receiver contains both the 868 MHz RF link (to talk with the thermostat) and a 2.4 GHz Wi-Fi module (to connect to the internet and the ENGO Smart app). There is no need for a separate gateway or bridge device.
📱 ENGO Smart App — Control Your Heating from Anywhere
- Remote temperature adjustment from anywhere in the world
- 7-day schedule programming directly in the app
- Share access with family members or tenants
- Monitor your heating history and usage
- Voice control via Amazon Alexa and Google Assistant
- Compatible with SmartLife and Tuya Smart platforms
Available free on iOS (App Store) and Android (Google Play).
If your broadband goes down, the E901-WIFI-UK doesn't stop working. The thermostat maintains its last schedule and setpoint without an internet connection, ensuring your home stays warm even during an outage. Full remote control resumes automatically when connectivity is restored.
The E901-WIFI-UK replaces any existing wired room thermostat. Wire the receiver into the boiler's thermostat input (volt-free 2-wire connection) — the same terminals as the old dial thermostat. No additional wiring runs are needed as the thermostat itself is battery-powered.
The receiver requires a 2.4 GHz Wi-Fi network. If your router broadcasts a combined 2.4/5 GHz SSID, temporarily connect your phone to the 2.4 GHz band during initial setup, or split the bands in your router settings. After setup, normal router operation resumes.
Key Features
- 868 MHz RF thermostat-to-receiver link (868.0–868.6 MHz)
- Wi-Fi 2.4 GHz built into receiver — no hub or gateway required
- ENGO Smart app control (iOS & Android) via Tuya Cloud
- Amazon Alexa and Google Assistant voice control
- SmartLife and Tuya Smart compatible
- 7-day programmable schedule — up to 6 events per day
- Offline operation — maintains schedule without internet
- Battery-powered thermostat (2×AA alkaline, not included)
- Mains receiver: 230V AC 50Hz
- Volt-free NO/COM relay output — max load 16(5)A
- TPI control algorithm (Boiler Plus compliant)
- Hysteresis mode: ±0.2°C or ±2°C selectable
- Temperature range: 5°C – 35°C
- Configurable min/max setpoint limits
- Heating / Cooling switchable mode
- PIN lock / child lock
- Holiday mode and temporary boost
- Sliding panel design with large LCD display
- Factory pre-paired thermostat and receiver
- Desk stand and wall fixings included
- Unique 868 MHz transmission codes — no cross-interference
- 5-year manufacturer's warranty
Technical Specifications
| Specification | Value |
|---|---|
| Model | E901-WIFI-UK |
| RF Communication | 868 MHz (868.0–868.6 MHz, <13 dBm) |
| Wi-Fi | 2.4 GHz (receiver only) — no hub required |
| App | ENGO Smart (Tuya Cloud) — iOS & Android |
| Voice Control | Amazon Alexa, Google Assistant |
| Thermostat Power | 2×AA 1.5V alkaline batteries (not included) |
| Receiver Power | 230V AC / 50Hz |
| Max Receiver Load | 16(5)A |
| Receiver Output | Volt-free NO/COM relay |
| Temperature Range | 5°C – 35°C |
| Display Accuracy | 0.5°C |
| Control Algorithm | TPI or Hysteresis (±0.2°C / ±2°C) |
| Schedule | 7-day, up to 6 events/day |
| Heating/Cooling | Yes (switchable) |
| Offline Operation | Yes — maintains schedule without internet |
| Boiler Plus | Compliant (TPI load compensator) |
| OpenTherm | Not supported — on/off volt-free control only |
| PIN Lock | Yes |
| Thermostat Dimensions | 150 × 84 × 22 mm |
| Warranty | 5 years |
Installation Notes
Wiring must be carried out by a qualified person per BS 7671. The receiver replaces any standard 2-wire wired room thermostat at the boiler's thermostat terminals.
- Receiver: L, N to 230V supply; COM/NO to boiler thermostat input
- OpenTherm: NOT supported — on/off volt-free control only
- Wi-Fi setup: 2.4 GHz only — ensure your phone is on 2.4 GHz band during setup
- Thermostat: mount at ~1.5 m above floor, away from heat sources and direct sunlight
- App setup: download ENGO Smart, create account, and follow the in-app pairing guide
Frequently Asked Questions
What's the difference between the E901-RF-UK and the E901-WIFI-UK?
The E901-RF-UK has 868 MHz RF only — no Wi-Fi, no app control. The E901-WIFI-UK adds a 2.4 GHz Wi-Fi module to the receiver for remote control via the ENGO Smart app, Alexa, and Google Assistant — all without needing an extra hub or gateway device.
Do I need a hub or gateway?
No — the Wi-Fi module is built into the receiver. Just connect it to your router like any other smart device.
Does it work with my combi boiler?
Yes — compatible with any gas, oil, or LPG combi or system boiler with a standard volt-free thermostat input. Also works with heat pumps in on/off mode.
Will it work if the internet goes down?
Yes — the thermostat maintains its programmed schedule and last setpoint without an internet connection. Remote app control and voice commands resume when connectivity returns.
Does it support OpenTherm?
No — the E901-WIFI-UK uses volt-free on/off control. It will control OpenTherm-capable boilers but only in simple on/off mode, not modulating mode. For OpenTherm modulation, a dedicated OpenTherm thermostat is required.
My router is 2.4/5 GHz combined — will it work?
Yes, but during setup you may need to temporarily connect your phone to the 2.4 GHz band, or briefly separate the bands in your router settings. Once configured, the receiver connects reliably and you can return to normal router settings.
What's in the Box
- 1× E901-WIFI thermostat head (battery-powered)
- 1× Mains receiver with Wi-Fi (230V)
- Desk stand for thermostat
- Wall fixings for thermostat and receiver
- Full instruction manual
Note: 2×AA batteries not included.
Wiring by qualified person per BS 7671. 2.4 GHz Wi-Fi only. OpenTherm not supported. For the non-Wi-Fi version see E901-RF-UK.
Original: $113.37
-65%$113.37
$39.68More Images
ENGO E901-WIFI-UK Smart WiFi Wireless Thermostat – App, Alexa & Google Control, No Hub | Gas, Oil & Heat Pump
The ENGO E901-WIFI-UK is a smart wireless thermostat that puts full heating control in your pocket — no gateway hub required. The 2.4 GHz Wi-Fi module is built directly into the mains receiver, so you get app control, Alexa and Google voice commands, and 7-day scheduling right out of the box. The battery-powered thermostat communicates over 868 MHz RF to the receiver, which connects to your existing boiler. Boiler Plus compliant with a 5-year warranty.
Why Choose the ENGO E901-WIFI-UK?
No gateway, bridge, or extra hub needed — the receiver connects directly to your home Wi-Fi for instant smart control.
Control temperature, set schedules, and monitor heating remotely from anywhere via iOS or Android.
Voice-activate your heating: "Alexa, set the heating to 20 degrees" — works with all Echo and Google devices.
Up to 6 setpoints per day, every day — programme your heating to match your lifestyle perfectly.
No thermostat wiring needed — 2×AA batteries power the thermostat head for over a year of typical use.
TPI control provides smart modulating control that reduces temperature overshoot and saves energy.
TPI algorithm satisfies UK Boiler Plus requirements (Part L) for new boiler installations.
The thermostat maintains its schedule and last setpoint if the internet connection is lost — heating keeps running.
Lock the thermostat with a PIN to prevent unwanted changes — great for rentals and family homes.
Stylish large-display thermostat with a hidden sliding panel — clean and unobtrusive on the wall.
One-touch boost for extra warmth, and holiday mode keeps pipes safe while you're away.
Full 5-year manufacturer's warranty for long-term reliability.
Suitable For
About the E901-WIFI-UK
The E901-WIFI-UK is the smart upgrade to the E901-RF. It is a two-part system: the battery-powered thermostat head mounts on the wall or desk stand anywhere in the room, while the mains receiver wires to the boiler. The receiver contains both the 868 MHz RF link (to talk with the thermostat) and a 2.4 GHz Wi-Fi module (to connect to the internet and the ENGO Smart app). There is no need for a separate gateway or bridge device.
📱 ENGO Smart App — Control Your Heating from Anywhere
- Remote temperature adjustment from anywhere in the world
- 7-day schedule programming directly in the app
- Share access with family members or tenants
- Monitor your heating history and usage
- Voice control via Amazon Alexa and Google Assistant
- Compatible with SmartLife and Tuya Smart platforms
Available free on iOS (App Store) and Android (Google Play).
If your broadband goes down, the E901-WIFI-UK doesn't stop working. The thermostat maintains its last schedule and setpoint without an internet connection, ensuring your home stays warm even during an outage. Full remote control resumes automatically when connectivity is restored.
The E901-WIFI-UK replaces any existing wired room thermostat. Wire the receiver into the boiler's thermostat input (volt-free 2-wire connection) — the same terminals as the old dial thermostat. No additional wiring runs are needed as the thermostat itself is battery-powered.
The receiver requires a 2.4 GHz Wi-Fi network. If your router broadcasts a combined 2.4/5 GHz SSID, temporarily connect your phone to the 2.4 GHz band during initial setup, or split the bands in your router settings. After setup, normal router operation resumes.
Key Features
- 868 MHz RF thermostat-to-receiver link (868.0–868.6 MHz)
- Wi-Fi 2.4 GHz built into receiver — no hub or gateway required
- ENGO Smart app control (iOS & Android) via Tuya Cloud
- Amazon Alexa and Google Assistant voice control
- SmartLife and Tuya Smart compatible
- 7-day programmable schedule — up to 6 events per day
- Offline operation — maintains schedule without internet
- Battery-powered thermostat (2×AA alkaline, not included)
- Mains receiver: 230V AC 50Hz
- Volt-free NO/COM relay output — max load 16(5)A
- TPI control algorithm (Boiler Plus compliant)
- Hysteresis mode: ±0.2°C or ±2°C selectable
- Temperature range: 5°C – 35°C
- Configurable min/max setpoint limits
- Heating / Cooling switchable mode
- PIN lock / child lock
- Holiday mode and temporary boost
- Sliding panel design with large LCD display
- Factory pre-paired thermostat and receiver
- Desk stand and wall fixings included
- Unique 868 MHz transmission codes — no cross-interference
- 5-year manufacturer's warranty
Technical Specifications
| Specification | Value |
|---|---|
| Model | E901-WIFI-UK |
| RF Communication | 868 MHz (868.0–868.6 MHz, <13 dBm) |
| Wi-Fi | 2.4 GHz (receiver only) — no hub required |
| App | ENGO Smart (Tuya Cloud) — iOS & Android |
| Voice Control | Amazon Alexa, Google Assistant |
| Thermostat Power | 2×AA 1.5V alkaline batteries (not included) |
| Receiver Power | 230V AC / 50Hz |
| Max Receiver Load | 16(5)A |
| Receiver Output | Volt-free NO/COM relay |
| Temperature Range | 5°C – 35°C |
| Display Accuracy | 0.5°C |
| Control Algorithm | TPI or Hysteresis (±0.2°C / ±2°C) |
| Schedule | 7-day, up to 6 events/day |
| Heating/Cooling | Yes (switchable) |
| Offline Operation | Yes — maintains schedule without internet |
| Boiler Plus | Compliant (TPI load compensator) |
| OpenTherm | Not supported — on/off volt-free control only |
| PIN Lock | Yes |
| Thermostat Dimensions | 150 × 84 × 22 mm |
| Warranty | 5 years |
Installation Notes
Wiring must be carried out by a qualified person per BS 7671. The receiver replaces any standard 2-wire wired room thermostat at the boiler's thermostat terminals.
- Receiver: L, N to 230V supply; COM/NO to boiler thermostat input
- OpenTherm: NOT supported — on/off volt-free control only
- Wi-Fi setup: 2.4 GHz only — ensure your phone is on 2.4 GHz band during setup
- Thermostat: mount at ~1.5 m above floor, away from heat sources and direct sunlight
- App setup: download ENGO Smart, create account, and follow the in-app pairing guide
Frequently Asked Questions
What's the difference between the E901-RF-UK and the E901-WIFI-UK?
The E901-RF-UK has 868 MHz RF only — no Wi-Fi, no app control. The E901-WIFI-UK adds a 2.4 GHz Wi-Fi module to the receiver for remote control via the ENGO Smart app, Alexa, and Google Assistant — all without needing an extra hub or gateway device.
Do I need a hub or gateway?
No — the Wi-Fi module is built into the receiver. Just connect it to your router like any other smart device.
Does it work with my combi boiler?
Yes — compatible with any gas, oil, or LPG combi or system boiler with a standard volt-free thermostat input. Also works with heat pumps in on/off mode.
Will it work if the internet goes down?
Yes — the thermostat maintains its programmed schedule and last setpoint without an internet connection. Remote app control and voice commands resume when connectivity returns.
Does it support OpenTherm?
No — the E901-WIFI-UK uses volt-free on/off control. It will control OpenTherm-capable boilers but only in simple on/off mode, not modulating mode. For OpenTherm modulation, a dedicated OpenTherm thermostat is required.
My router is 2.4/5 GHz combined — will it work?
Yes, but during setup you may need to temporarily connect your phone to the 2.4 GHz band, or briefly separate the bands in your router settings. Once configured, the receiver connects reliably and you can return to normal router settings.
What's in the Box
- 1× E901-WIFI thermostat head (battery-powered)
- 1× Mains receiver with Wi-Fi (230V)
- Desk stand for thermostat
- Wall fixings for thermostat and receiver
- Full instruction manual
Note: 2×AA batteries not included.
Wiring by qualified person per BS 7671. 2.4 GHz Wi-Fi only. OpenTherm not supported. For the non-Wi-Fi version see E901-RF-UK.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The ENGO E901-WIFI-UK is a smart wireless thermostat that puts full heating control in your pocket — no gateway hub required. The 2.4 GHz Wi-Fi module is built directly into the mains receiver, so you get app control, Alexa and Google voice commands, and 7-day scheduling right out of the box. The battery-powered thermostat communicates over 868 MHz RF to the receiver, which connects to your existing boiler. Boiler Plus compliant with a 5-year warranty.
Why Choose the ENGO E901-WIFI-UK?
No gateway, bridge, or extra hub needed — the receiver connects directly to your home Wi-Fi for instant smart control.
Control temperature, set schedules, and monitor heating remotely from anywhere via iOS or Android.
Voice-activate your heating: "Alexa, set the heating to 20 degrees" — works with all Echo and Google devices.
Up to 6 setpoints per day, every day — programme your heating to match your lifestyle perfectly.
No thermostat wiring needed — 2×AA batteries power the thermostat head for over a year of typical use.
TPI control provides smart modulating control that reduces temperature overshoot and saves energy.
TPI algorithm satisfies UK Boiler Plus requirements (Part L) for new boiler installations.
The thermostat maintains its schedule and last setpoint if the internet connection is lost — heating keeps running.
Lock the thermostat with a PIN to prevent unwanted changes — great for rentals and family homes.
Stylish large-display thermostat with a hidden sliding panel — clean and unobtrusive on the wall.
One-touch boost for extra warmth, and holiday mode keeps pipes safe while you're away.
Full 5-year manufacturer's warranty for long-term reliability.
Suitable For
About the E901-WIFI-UK
The E901-WIFI-UK is the smart upgrade to the E901-RF. It is a two-part system: the battery-powered thermostat head mounts on the wall or desk stand anywhere in the room, while the mains receiver wires to the boiler. The receiver contains both the 868 MHz RF link (to talk with the thermostat) and a 2.4 GHz Wi-Fi module (to connect to the internet and the ENGO Smart app). There is no need for a separate gateway or bridge device.
📱 ENGO Smart App — Control Your Heating from Anywhere
- Remote temperature adjustment from anywhere in the world
- 7-day schedule programming directly in the app
- Share access with family members or tenants
- Monitor your heating history and usage
- Voice control via Amazon Alexa and Google Assistant
- Compatible with SmartLife and Tuya Smart platforms
Available free on iOS (App Store) and Android (Google Play).
If your broadband goes down, the E901-WIFI-UK doesn't stop working. The thermostat maintains its last schedule and setpoint without an internet connection, ensuring your home stays warm even during an outage. Full remote control resumes automatically when connectivity is restored.
The E901-WIFI-UK replaces any existing wired room thermostat. Wire the receiver into the boiler's thermostat input (volt-free 2-wire connection) — the same terminals as the old dial thermostat. No additional wiring runs are needed as the thermostat itself is battery-powered.
The receiver requires a 2.4 GHz Wi-Fi network. If your router broadcasts a combined 2.4/5 GHz SSID, temporarily connect your phone to the 2.4 GHz band during initial setup, or split the bands in your router settings. After setup, normal router operation resumes.
Key Features
- 868 MHz RF thermostat-to-receiver link (868.0–868.6 MHz)
- Wi-Fi 2.4 GHz built into receiver — no hub or gateway required
- ENGO Smart app control (iOS & Android) via Tuya Cloud
- Amazon Alexa and Google Assistant voice control
- SmartLife and Tuya Smart compatible
- 7-day programmable schedule — up to 6 events per day
- Offline operation — maintains schedule without internet
- Battery-powered thermostat (2×AA alkaline, not included)
- Mains receiver: 230V AC 50Hz
- Volt-free NO/COM relay output — max load 16(5)A
- TPI control algorithm (Boiler Plus compliant)
- Hysteresis mode: ±0.2°C or ±2°C selectable
- Temperature range: 5°C – 35°C
- Configurable min/max setpoint limits
- Heating / Cooling switchable mode
- PIN lock / child lock
- Holiday mode and temporary boost
- Sliding panel design with large LCD display
- Factory pre-paired thermostat and receiver
- Desk stand and wall fixings included
- Unique 868 MHz transmission codes — no cross-interference
- 5-year manufacturer's warranty
Technical Specifications
| Specification | Value |
|---|---|
| Model | E901-WIFI-UK |
| RF Communication | 868 MHz (868.0–868.6 MHz, <13 dBm) |
| Wi-Fi | 2.4 GHz (receiver only) — no hub required |
| App | ENGO Smart (Tuya Cloud) — iOS & Android |
| Voice Control | Amazon Alexa, Google Assistant |
| Thermostat Power | 2×AA 1.5V alkaline batteries (not included) |
| Receiver Power | 230V AC / 50Hz |
| Max Receiver Load | 16(5)A |
| Receiver Output | Volt-free NO/COM relay |
| Temperature Range | 5°C – 35°C |
| Display Accuracy | 0.5°C |
| Control Algorithm | TPI or Hysteresis (±0.2°C / ±2°C) |
| Schedule | 7-day, up to 6 events/day |
| Heating/Cooling | Yes (switchable) |
| Offline Operation | Yes — maintains schedule without internet |
| Boiler Plus | Compliant (TPI load compensator) |
| OpenTherm | Not supported — on/off volt-free control only |
| PIN Lock | Yes |
| Thermostat Dimensions | 150 × 84 × 22 mm |
| Warranty | 5 years |
Installation Notes
Wiring must be carried out by a qualified person per BS 7671. The receiver replaces any standard 2-wire wired room thermostat at the boiler's thermostat terminals.
- Receiver: L, N to 230V supply; COM/NO to boiler thermostat input
- OpenTherm: NOT supported — on/off volt-free control only
- Wi-Fi setup: 2.4 GHz only — ensure your phone is on 2.4 GHz band during setup
- Thermostat: mount at ~1.5 m above floor, away from heat sources and direct sunlight
- App setup: download ENGO Smart, create account, and follow the in-app pairing guide
Frequently Asked Questions
What's the difference between the E901-RF-UK and the E901-WIFI-UK?
The E901-RF-UK has 868 MHz RF only — no Wi-Fi, no app control. The E901-WIFI-UK adds a 2.4 GHz Wi-Fi module to the receiver for remote control via the ENGO Smart app, Alexa, and Google Assistant — all without needing an extra hub or gateway device.
Do I need a hub or gateway?
No — the Wi-Fi module is built into the receiver. Just connect it to your router like any other smart device.
Does it work with my combi boiler?
Yes — compatible with any gas, oil, or LPG combi or system boiler with a standard volt-free thermostat input. Also works with heat pumps in on/off mode.
Will it work if the internet goes down?
Yes — the thermostat maintains its programmed schedule and last setpoint without an internet connection. Remote app control and voice commands resume when connectivity returns.
Does it support OpenTherm?
No — the E901-WIFI-UK uses volt-free on/off control. It will control OpenTherm-capable boilers but only in simple on/off mode, not modulating mode. For OpenTherm modulation, a dedicated OpenTherm thermostat is required.
My router is 2.4/5 GHz combined — will it work?
Yes, but during setup you may need to temporarily connect your phone to the 2.4 GHz band, or briefly separate the bands in your router settings. Once configured, the receiver connects reliably and you can return to normal router settings.
What's in the Box
- 1× E901-WIFI thermostat head (battery-powered)
- 1× Mains receiver with Wi-Fi (230V)
- Desk stand for thermostat
- Wall fixings for thermostat and receiver
- Full instruction manual
Note: 2×AA batteries not included.
Wiring by qualified person per BS 7671. 2.4 GHz Wi-Fi only. OpenTherm not supported. For the non-Wi-Fi version see E901-RF-UK.
