Heatmiser neoStat v3 Programmable Smart Thermostat Black 230V
The Heatmiser neoStat v3 in Black is a slimline 230 V programmable smart thermostat with a proximity-activated backlit display and illuminated soft-touch keys. At just 13 mm deep and 85 × 85 mm, it sits flush in a standard 35 mm back box and presents a clean, contemporary face on any wall. The matte-black finish is particularly well suited to modern dark interiors, feature walls, matt-black bathrooms and kitchen schemes where all-black fittings are the design language.
Mains-powered via a standard three-wire connection, it wires directly to a boiler, zone valve or heating appliance through a volt-free 3 A switch output — a drop-in replacement for any existing three-wire programmable thermostat. Because it is always on mains, each neoStat v3 automatically acts as a wireless Mesh repeater, extending the neo network signal around the home. For app and voice control, pair with a neoHub (2nd Generation or later) to unlock the free neoApp and integrations with Alexa, Google Home and Apple HomeKit.
Screen wakes automatically as you approach and switches off after 30 seconds — keeping the fascia clean. 0.1°C display resolution lets you confirm exactly how quickly the room is warming.
Backlit capacitive keys remain easy to read in the dark and respond cleanly — no fumbling with dials or membrane buttons during a cold morning.
Automatically calculates how early to fire the boiler so the room is at the set temperature when you need it, and refines this preheat window across the seasons.
Four operating modes — Non-Programmable, Weekday/Weekend, All Days Different, All Days Same — with 5-minute intervals and up to 4 comfort levels per day (6 with neoHub).
Reconfigure as a dedicated timer to switch towel rails, lighting or other 230 V appliances — one device manages both heating and non-heating loads.
Accepts a 10K, 12K or 15K NTC floor probe (sold separately) for floor temperature sensing mode with an adjustable high-temperature limit to protect delicate floor finishes.
| Colour / finish | Black |
| Manufacturer | IMI Heatmiser (Heatmiser UK Ltd) |
| Model | neoStat v3 |
| Supply voltage | 85 – 230 V AC, 50/60 Hz |
| Output | Volt-free switch, 230 V AC, 3 A max |
| Temperature range | 5 °C – 35 °C |
| Setpoint resolution | 0.5 °C increments |
| Display resolution | 0.1 °C |
| Sensing modes | Built-in air; remote air sensor; floor temperature (NTC probe) |
| Floor probe compatibility | 10K / 12K / 15K NTC |
| Operating modes | Non-Programmable; Weekday/Weekend; All Days Different; All Days Same |
| Programming intervals | 5 minutes |
| Comfort levels per day | 4 (expandable to 6 with neoHub) |
| Special modes | Temperature Hold, Holiday, Frost Protection |
| ErP class | Class I (1%); Class VIII (5%) with multi-room control & boiler interlock |
| Mesh networking | Yes — acts as signal repeater when mains-powered |
| neoHub compatibility | 2nd Generation neoHub or later (not compatible with 1st Gen neoHub) |
| App | Free neoApp — iOS 13+ / Android 8+ |
| Voice control | Amazon Alexa, Google Home, Apple HomeKit |
| Mounting | Flush — 35 mm minimum-depth back box required |
| IP rating | IP20 |
| Dimensions (H × W × D) | 85 × 85 × 13 mm |
| Weight | 137 g |
| Warranty | 2 years manufacturer |
Can I use it without a neoHub?
Yes — the neoStat v3 is a fully functional standalone programmable thermostat without a neoHub. You get all on-device modes, self-learning start, temperature hold and holiday mode from the touch keys. The neoHub (2nd Gen or later, sold separately) adds app control, voice control and Alexa / Google Home / Apple HomeKit integrations.
Will it pair with my existing neoHub?
Only if you have a 2nd Generation neoHub or later. The neoStat v3 is not compatible with the original 1st Generation neoHub — the connectivity platform changed to support improved reliability and long-term software updates. Check the label on the underside of your hub to confirm the generation.
What wiring does it need?
A standard three-wire Live / Neutral / Switched Live connection — the same as virtually all existing mains-powered programmable thermostats. It requires a 35 mm minimum-depth flush back box in the wall. Most existing thermostat back boxes meet this depth, but check if yours is unusually shallow.
Can it control underfloor heating?
Yes. In its default air-sensing mode it controls any wet UFH zone via the volt-free output. Adding a compatible NTC floor probe (10K, 12K or 15K — sold separately) enables floor-sensing mode with an adjustable high-temperature limit to protect delicate floor finishes such as engineered wood or luxury vinyl.
What does the Mesh repeater function do?
Because the neoStat v3 runs on mains power, it automatically relays wireless signals between the neoHub and other neo devices — no setup needed. The more neoStat units installed, the stronger the whole-home neo network. Battery-powered devices like the neoAir v3 benefit from the coverage neoStats provide.
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Heatmiser neoStat v3 Programmable Smart Thermostat Black 230V
The Heatmiser neoStat v3 in Black is a slimline 230 V programmable smart thermostat with a proximity-activated backlit display and illuminated soft-touch keys. At just 13 mm deep and 85 × 85 mm, it sits flush in a standard 35 mm back box and presents a clean, contemporary face on any wall. The matte-black finish is particularly well suited to modern dark interiors, feature walls, matt-black bathrooms and kitchen schemes where all-black fittings are the design language.
Mains-powered via a standard three-wire connection, it wires directly to a boiler, zone valve or heating appliance through a volt-free 3 A switch output — a drop-in replacement for any existing three-wire programmable thermostat. Because it is always on mains, each neoStat v3 automatically acts as a wireless Mesh repeater, extending the neo network signal around the home. For app and voice control, pair with a neoHub (2nd Generation or later) to unlock the free neoApp and integrations with Alexa, Google Home and Apple HomeKit.
Screen wakes automatically as you approach and switches off after 30 seconds — keeping the fascia clean. 0.1°C display resolution lets you confirm exactly how quickly the room is warming.
Backlit capacitive keys remain easy to read in the dark and respond cleanly — no fumbling with dials or membrane buttons during a cold morning.
Automatically calculates how early to fire the boiler so the room is at the set temperature when you need it, and refines this preheat window across the seasons.
Four operating modes — Non-Programmable, Weekday/Weekend, All Days Different, All Days Same — with 5-minute intervals and up to 4 comfort levels per day (6 with neoHub).
Reconfigure as a dedicated timer to switch towel rails, lighting or other 230 V appliances — one device manages both heating and non-heating loads.
Accepts a 10K, 12K or 15K NTC floor probe (sold separately) for floor temperature sensing mode with an adjustable high-temperature limit to protect delicate floor finishes.
| Colour / finish | Black |
| Manufacturer | IMI Heatmiser (Heatmiser UK Ltd) |
| Model | neoStat v3 |
| Supply voltage | 85 – 230 V AC, 50/60 Hz |
| Output | Volt-free switch, 230 V AC, 3 A max |
| Temperature range | 5 °C – 35 °C |
| Setpoint resolution | 0.5 °C increments |
| Display resolution | 0.1 °C |
| Sensing modes | Built-in air; remote air sensor; floor temperature (NTC probe) |
| Floor probe compatibility | 10K / 12K / 15K NTC |
| Operating modes | Non-Programmable; Weekday/Weekend; All Days Different; All Days Same |
| Programming intervals | 5 minutes |
| Comfort levels per day | 4 (expandable to 6 with neoHub) |
| Special modes | Temperature Hold, Holiday, Frost Protection |
| ErP class | Class I (1%); Class VIII (5%) with multi-room control & boiler interlock |
| Mesh networking | Yes — acts as signal repeater when mains-powered |
| neoHub compatibility | 2nd Generation neoHub or later (not compatible with 1st Gen neoHub) |
| App | Free neoApp — iOS 13+ / Android 8+ |
| Voice control | Amazon Alexa, Google Home, Apple HomeKit |
| Mounting | Flush — 35 mm minimum-depth back box required |
| IP rating | IP20 |
| Dimensions (H × W × D) | 85 × 85 × 13 mm |
| Weight | 137 g |
| Warranty | 2 years manufacturer |
Can I use it without a neoHub?
Yes — the neoStat v3 is a fully functional standalone programmable thermostat without a neoHub. You get all on-device modes, self-learning start, temperature hold and holiday mode from the touch keys. The neoHub (2nd Gen or later, sold separately) adds app control, voice control and Alexa / Google Home / Apple HomeKit integrations.
Will it pair with my existing neoHub?
Only if you have a 2nd Generation neoHub or later. The neoStat v3 is not compatible with the original 1st Generation neoHub — the connectivity platform changed to support improved reliability and long-term software updates. Check the label on the underside of your hub to confirm the generation.
What wiring does it need?
A standard three-wire Live / Neutral / Switched Live connection — the same as virtually all existing mains-powered programmable thermostats. It requires a 35 mm minimum-depth flush back box in the wall. Most existing thermostat back boxes meet this depth, but check if yours is unusually shallow.
Can it control underfloor heating?
Yes. In its default air-sensing mode it controls any wet UFH zone via the volt-free output. Adding a compatible NTC floor probe (10K, 12K or 15K — sold separately) enables floor-sensing mode with an adjustable high-temperature limit to protect delicate floor finishes such as engineered wood or luxury vinyl.
What does the Mesh repeater function do?
Because the neoStat v3 runs on mains power, it automatically relays wireless signals between the neoHub and other neo devices — no setup needed. The more neoStat units installed, the stronger the whole-home neo network. Battery-powered devices like the neoAir v3 benefit from the coverage neoStats provide.
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Description
The Heatmiser neoStat v3 in Black is a slimline 230 V programmable smart thermostat with a proximity-activated backlit display and illuminated soft-touch keys. At just 13 mm deep and 85 × 85 mm, it sits flush in a standard 35 mm back box and presents a clean, contemporary face on any wall. The matte-black finish is particularly well suited to modern dark interiors, feature walls, matt-black bathrooms and kitchen schemes where all-black fittings are the design language.
Mains-powered via a standard three-wire connection, it wires directly to a boiler, zone valve or heating appliance through a volt-free 3 A switch output — a drop-in replacement for any existing three-wire programmable thermostat. Because it is always on mains, each neoStat v3 automatically acts as a wireless Mesh repeater, extending the neo network signal around the home. For app and voice control, pair with a neoHub (2nd Generation or later) to unlock the free neoApp and integrations with Alexa, Google Home and Apple HomeKit.
Screen wakes automatically as you approach and switches off after 30 seconds — keeping the fascia clean. 0.1°C display resolution lets you confirm exactly how quickly the room is warming.
Backlit capacitive keys remain easy to read in the dark and respond cleanly — no fumbling with dials or membrane buttons during a cold morning.
Automatically calculates how early to fire the boiler so the room is at the set temperature when you need it, and refines this preheat window across the seasons.
Four operating modes — Non-Programmable, Weekday/Weekend, All Days Different, All Days Same — with 5-minute intervals and up to 4 comfort levels per day (6 with neoHub).
Reconfigure as a dedicated timer to switch towel rails, lighting or other 230 V appliances — one device manages both heating and non-heating loads.
Accepts a 10K, 12K or 15K NTC floor probe (sold separately) for floor temperature sensing mode with an adjustable high-temperature limit to protect delicate floor finishes.
| Colour / finish | Black |
| Manufacturer | IMI Heatmiser (Heatmiser UK Ltd) |
| Model | neoStat v3 |
| Supply voltage | 85 – 230 V AC, 50/60 Hz |
| Output | Volt-free switch, 230 V AC, 3 A max |
| Temperature range | 5 °C – 35 °C |
| Setpoint resolution | 0.5 °C increments |
| Display resolution | 0.1 °C |
| Sensing modes | Built-in air; remote air sensor; floor temperature (NTC probe) |
| Floor probe compatibility | 10K / 12K / 15K NTC |
| Operating modes | Non-Programmable; Weekday/Weekend; All Days Different; All Days Same |
| Programming intervals | 5 minutes |
| Comfort levels per day | 4 (expandable to 6 with neoHub) |
| Special modes | Temperature Hold, Holiday, Frost Protection |
| ErP class | Class I (1%); Class VIII (5%) with multi-room control & boiler interlock |
| Mesh networking | Yes — acts as signal repeater when mains-powered |
| neoHub compatibility | 2nd Generation neoHub or later (not compatible with 1st Gen neoHub) |
| App | Free neoApp — iOS 13+ / Android 8+ |
| Voice control | Amazon Alexa, Google Home, Apple HomeKit |
| Mounting | Flush — 35 mm minimum-depth back box required |
| IP rating | IP20 |
| Dimensions (H × W × D) | 85 × 85 × 13 mm |
| Weight | 137 g |
| Warranty | 2 years manufacturer |
Can I use it without a neoHub?
Yes — the neoStat v3 is a fully functional standalone programmable thermostat without a neoHub. You get all on-device modes, self-learning start, temperature hold and holiday mode from the touch keys. The neoHub (2nd Gen or later, sold separately) adds app control, voice control and Alexa / Google Home / Apple HomeKit integrations.
Will it pair with my existing neoHub?
Only if you have a 2nd Generation neoHub or later. The neoStat v3 is not compatible with the original 1st Generation neoHub — the connectivity platform changed to support improved reliability and long-term software updates. Check the label on the underside of your hub to confirm the generation.
What wiring does it need?
A standard three-wire Live / Neutral / Switched Live connection — the same as virtually all existing mains-powered programmable thermostats. It requires a 35 mm minimum-depth flush back box in the wall. Most existing thermostat back boxes meet this depth, but check if yours is unusually shallow.
Can it control underfloor heating?
Yes. In its default air-sensing mode it controls any wet UFH zone via the volt-free output. Adding a compatible NTC floor probe (10K, 12K or 15K — sold separately) enables floor-sensing mode with an adjustable high-temperature limit to protect delicate floor finishes such as engineered wood or luxury vinyl.
What does the Mesh repeater function do?
Because the neoStat v3 runs on mains power, it automatically relays wireless signals between the neoHub and other neo devices — no setup needed. The more neoStat units installed, the stronger the whole-home neo network. Battery-powered devices like the neoAir v3 benefit from the coverage neoStats provide.
