Nothing matches all of those filters.
Air conditioning and chillers
Sealed rooms, nothing vented outside
OptiClimate Pro 3 Grow Room Air Conditioner – Water-Cooled
- Cooling capacity 2 kW / 6,800 BTU
- Heating 2 x 1,300 W (2.6 kW)
- Dehumidification 35 L/24h
- Cooling water flow 0.6-1.2 L/min
OptiClimate Water Cooler – Closed Loop Grow Room Chiller
- Cooling capacity 4.5 kW
- Fan power 60 W
- Noise 28 dB(A)
- Fans 1 x 350 mm
OptiClimate Revomax II Grow Room Air Conditioner
- Cooling capacity 6 kW / 20,500 BTU
- Max cooling 7 kW
- Heating 3 x 1,300 W (3.9 kW)
- Dehumidification 85 L/24h
Heaters and thermostats
Tube, fan and oil-filled
Out of stock
VIVOSUN AeroFlux Smart Grow Tent Heater – 700W, VPD Control
- Model VIVOSUN AeroFlux W70
- Power 700W PTC heating with PWM control
- Heat levels 5
- Control temperature or VPD target; day/night Recipe modes...
- Connectivity Wi-Fi to the VIVOSUN app, no controller needed; p...
- Sensor Enviro-Probe temperature and humidity sensor, 3m ...
- Grow space tents up to 1.5 x 1.5m (5 x 5ft)
- Size approx. 24 x 24 x 12cm
- Hoses attached hose 12–44cm; extension hose 31–114cm, 6...
- Safety V0 flame-retardant housing, tip-over shut-off, ov...
- In the box heater, Enviro-Probe sensor, extension hose, air ...
Out of stock
Hotbox Superb 2.8kW Fan Heater – For Greenhouses & Sheds
- Heat output 2.8kW, half/full switchable
- Airflow 450 m³/h (250 CFM)
- Voltage 230V, 6A or 12A
- Size 27cm diameter x 50cm length
- Weight 6.1kg
- Construction stainless steel, sealed elements
- Certification CE and RoHS
Gorilla 2kW Fan Heater – Tall Black, Thermostat Control
- Power 2kW max output
- Settings fan-only / low heat / high heat
- Thermostat adjustable mechanical
- Heating area up to 20m²
- Protection rating IP24
- Weight 2.8kg
- Colour black
TrolMaster Hydro-X TS-2 Thermostat Station – HVAC Control
- Output Voltage 24V
- Maximum Current 1A
- Input Voltage 240V AC, 50/60Hz
- Operating Temperature 0-50°C
- Maximum Humidity ≤90%
- Connectivity RJ12 (plug & play)
- Updates MicroSD firmware slot
- Dimensions 160mm x 86mm x 86mm
- Controls HVAC, heat pump and multi-stage systems
- Max per controller up to 4 TS modules per Hydro-X
- Sensor none - uses the Hydro-X room sensor
- Compatibility TrolMaster Hydro-X control systems
- Included cables 16 ft RJ12, 4 ft RJ12, RJ12 T-splitter
- Wiring colour-coded 24V thermostat cable
Out of stock
Root!T Heat Mat Thermostat – Propagator Temperature Control
- Input 230V / 50Hz
- Maximum load 1000W / 4.3A
- Setting range 10–30°C (50–86°F)
- Display digital, °C or °F, with HEATING and POWER indicators
- Sensor remote temperature probe with rubber sucker
- Controls SET, UP and DOWN buttons
- In the box thermostat unit with plug, output socket and temp...
- Use indoor use; keep the thermostat body and socket d...
- Warranty 1 year
- Brand Root!T (HydroGarden)
Grow Gadgets Temperature Controller – Plug Socket For Heater
- Modes heating or cooling
- Temperature range -9°C to 60°C
- Accuracy ±1°C
- Maximum load 3,500W
- Power supply 220 V AC, 50 Hz
- Includes remote temperature probe, memory function
- Display 2-digit LED
- Controls SET, up and down buttons
- Socket UK 3-pin, plug-through
Cli-Mate 16A Temperature Controller – Grow Tent Thermostat
- Maximum load 16A / 3600W (3.6kW)
- Control type on/off temperature switching
- Probe 5m remote temperature probe, included
- Plug UK mains plug
Gorilla 2kW Heater – for Grow Tents & Rooms
- Power 2kW, two heat settings
- Air displacement 120 m³/hr
- Heating area up to 40 m³
- Protection rating IP21
- Safety thermal cutout
- Dimensions 19.7 x 19.7 x 20.5cm
- Weight 2.06kg
- Colour orange
Ora 2kW Fan Heater – Grow Room Thermostat Control
- Brand Ora
- Type Heating
- Price from £35.49
- Availability In stock
Lighthouse Oil Filled Radiator – Adjustable Thermostat
- Max output 1,000 W
- Heat settings 1
- Castor wheels no
Climate controllers and sensors
VIVOSUN GrowHub E25 Controller – Grow Room Environment
- Type plug-in Wi-Fi controller (dongle)
- Connection USB Type-C into the SGS device
- Compatible with AeroLight, AeroZesh, AeroWave E, LumaRay (SGS)
- Control VIVOSUN app over Wi-Fi
- Works with GrowHub E42 / E42A as an expansion port
- Indicator status light, one button for Wi-Fi setup
- Input 12 V DC from the host device
- Sensor option pairs with AeroLab THB1S for auto mode
- Grow recipes preset stage recipes in the VIVOSUN app
- Warranty 2 years (VIVOSUN)
- Dimensions 5.7 x 1.9 x 1.1 cm
TrolMaster BETA-4 Day/Night Temperature Controller
- Input voltage 240V AC
- Output switch Triac
- Maximum device load 10A
- Fuse rating 6A / 250V
- Temperature control range 40-100°F
- Temperature deadband 5°F
- Power cord length 1.8m
- Dimensions 27.5cm (L) x 8.7cm (W) x 9.4cm (H)
- Controls any heating or cooling device up to 10A
- Sensor remote plug-in temperature probe
- Maximum humidity ≤90% RH
- Display digital display with built-in photocell
- Operating temperature 0-40°C (32-104°F)
- Weight 0.56 kg
TrolMaster DST-2 Temperature Device Station – For Hydro-X
- Function switches heating or cooling equipment via Hydro-X
- Socket type UK 3-pin
- Load rating up to 10 A at 240 V
- Connection RJ12 to Hydro-X controller
- Indicator LED power status light
- Included cables 16 ft RJ12, 4 ft RJ12, RJ12 T-splitter
- Sensor none - uses the Hydro-X room sensor
- Output voltage 240V AC, 50/60 Hz
- Display LED status; settings on the controller
- Compatibility TrolMaster Hydro-X control systems
- Power supply 240V AC, 50/60 Hz
- Dimensions 85 x 80 x 90 mm
- Operating temperature 0-50°C (32-122°F)
- Weight 0.34 kg
Dimlux Fan Aux Box 15A – Fan Speed Controller
- Compatibility Dimlux Maxi Controller EVO (Aux/Fan output)
- Outputs 3 UK sockets – Fan, RH, Heater
- Rating 15A per output
- Fan control electronic, silent-running
- Temperature control SmartLogic, holds set point to 0.1°C
- Humidity control separate day and night RH settings
- Weight 0.5kg
- Connection AUX/FAN port on the Maxi Controller
Dimlux Maxi Controller v1.2 – Climate & Light Control
- Version v1.2
- Fixture capacity up to 160 Expert HPS (with Interlink splitter)
- Controls Lighting, CO2, heating, humidity, fans
- Monitors CO2, vapour pressure deficit (VPD), plant tempera...
- Light control Silent built-in timer, variable output, sunrise a...
- Temperature protection Auto dimming, then half or all fixtures switched off
- Cycle options Asynchronous timing, e.g. 10 hours on / 10 hours ...
- CO2 sensing Optional dual beam sensor, controls CO2 generator...
- Expansion modules Aux Box, Fan/Aux Box, CO2 sensor, CO2 Gas Protect...
- Fixture outputs 2 x OUT, up to 60 fixtures each
- Legacy HPS capacity Up to 80 ballasts on the 2-core port
- Power supply 16 V DC power adapter
- Add-on control Smartbox 0/2 (Aux Box) over RJ10
- Climate control Smartbox 6/3 for heat, cool and humidity
- Second controller ABP port, copy or invert modes
- Third-party control Modbus RTU, 9600 8N1, reply under 200 ms
- Display LCD status screen, 5 buttons, power LEDs
- Fixture cabling RJ45 Interlink, daisy chained
- Fixture compatibility Expert HPS, Xplore LED, XtremeII LED
- Max LED fixtures 120 (60 per OUT), 240 with 2nd unit
- Sensor ports Temperature, RH/T2, CO2, plant-temp IR
- Data logging every minute to a USB stick
- Dimming 7 steps or continuous
Installation parts and spares
Grow room temperature control, winter and summer
Most UK grow rooms have two separate temperature problems, and buying for only one of them is the usual mistake. In winter, lights-off drops the room well below where roots stay active, and an unheated tent in a garage or loft can swing ten degrees between periods. In summer, the lights and the incoming air work against you at the same time and extraction alone runs out of headroom.
For heat, tube heaters are the standard tent answer because they are low wattage and spread warmth along a length rather than blasting one spot. The Lighthouse Ecoheat comes with a digital timer, and the thermostatic version holds a set point instead of running flat out. An oil filled radiator suits a larger room that needs real output, and the Ora 2kW fan heater moves warm air about rather than radiating it. Whatever you fit, put it on a thermostat: the Lighthouse Wireless Thermostat stops a heater and an extractor fighting each other all night.
For cooling, the OptiClimate units on this page condition the air rather than exchanging it. If you would rather measure before you spend, the Growlink ClimaLINK sensor and the VIVOSUN GrowHub E25 log temperature and humidity so you can see the real swing instead of guessing at it. See fan controllers for holding a set point with extraction, and our tent cooling guide for the summer end. Free UK delivery over £99.