Lighthouse 3kW Greenhouse Heater UK | Thermostatic Grow Room & Greenhouse Heater
The Lighthouse 3kW Greenhouse Heater is a powerful thermostatically controlled electric heater designed for greenhouses, grow rooms, grow tents, garages, and propagation areas. Featuring adjustable heat settings, fan-only mode, stainless steel heating elements, and IPX4 splash resistance, this durable greenhouse heater provides reliable environmental temperature control for indoor growing environments.
- ✔ Powerful 3kW greenhouse and grow room heater
- ✔ Adjustable thermostat temperature control
- ✔ Fan-only mode for summer air circulation
- ✔ Stainless steel heating elements
- ✔ IPX4 splash-resistant greenhouse-safe design
£59.50 incl. Vat
10 in stock
🔥 Lighthouse 3kW Greenhouse Heater Guide & Product Information
🌱 Reliable Temperature Control for Greenhouses & Grow Rooms
The Lighthouse 3kW Greenhouse Heater is a powerful thermostatically controlled electric heater designed for maintaining stable temperatures within greenhouses, grow rooms, grow tents, propagation areas, sheds, and garages.
Maintaining stable environmental temperatures is essential for healthy plant growth, successful propagation, root development, and protecting plants during colder conditions. The Lighthouse 3kW Heater delivers fast and reliable heat output while allowing growers to accurately regulate environmental temperatures using the integrated thermostat control.
Its compact and durable design makes it ideal for hobby growers, hydroponic setups, commercial propagation rooms, and greenhouse heating applications.
If you are improving your grow room climate control, read our guide to maintaining optimal temperature and humidity in your grow tent.
- ✔ Powerful 3kW heating capacity
- ✔ Adjustable thermostatic temperature control
- ✔ Suitable for greenhouses, grow rooms & propagation
- ✔ Durable splash-resistant construction
🌡 Adjustable Thermostatic Temperature Control
The Lighthouse 3kW Heater features an integrated adjustable thermostat allowing growers to maintain stable environmental temperatures automatically.
Once the desired temperature is selected, the heater automatically cycles on and off to maintain consistent conditions within the growing environment.
Stable grow room temperatures help:
- ✔ Improve plant growth rates
- ✔ Support healthy root development
- ✔ Improve seedling and propagation success
- ✔ Reduce cold stress and environmental fluctuations
Accurate temperature management is particularly important during lights-off periods and colder seasonal conditions.
⚡ Dual Heat Settings & Fan-Only Mode
The Lighthouse 3kW Greenhouse Heater includes multiple operating modes for year-round environmental management.
Heat settings include:
- ✔ 1500W heating mode
- ✔ 3000W full heating mode
- ✔ Fan-only circulation mode
The fan-only setting allows growers to improve air circulation during warmer months without generating heat, helping reduce stagnant air and improve grow room airflow.
This makes the heater suitable for both winter heating and summer ventilation assistance.
💨 Powerful Air Circulation
The integrated high-powered fan helps distribute heat evenly throughout the growing environment, reducing cold spots and improving environmental consistency.
Proper warm air circulation helps:
- ✔ Maintain even grow room temperatures
- ✔ Reduce condensation issues
- ✔ Improve plant transpiration
- ✔ Support healthier environmental conditions
The powerful airflow makes the heater suitable for larger grow rooms and greenhouse environments.
🛡 Durable Greenhouse-Safe Design
The Lighthouse 3kW Heater is specifically designed for demanding greenhouse and grow room environments.
Features include:
- ✔ Stainless steel heating elements
- ✔ Powder-coated steel housing
- ✔ IPX4 splash-resistant protection
- ✔ Overheat protection system
The splash-resistant design makes it suitable for humid grow rooms and greenhouse environments where moisture levels may fluctuate.
🌿 Ideal Applications
The Lighthouse 3kW Heater is suitable for:
- ✔ Greenhouses
- ✔ Grow tents and grow rooms
- ✔ Propagation areas
- ✔ Hydroponic growing systems
- ✔ Garages, workshops & sheds
Its compact portable design allows flexible positioning within different indoor environments.
📏 Technical Specifications
- ✔ Maximum Heat Output: 3000W (3kW)
- ✔ Heat Settings: 1500W / 3000W
- ✔ Fan-Only Air Circulation Mode
- ✔ Adjustable Thermostat Control
- ✔ IPX4 Splash-Resistant Protection
- ✔ Stainless Steel Heating Elements
- ✔ Integrated Overheat Protection
- ✔ Portable Carry Handle
🌬 Benefits for Indoor Growing
The Lighthouse 3kW Heater helps growers maintain stable environmental conditions for healthier and more productive plant growth.
Benefits include:
- ✔ Improved environmental stability
- ✔ Better propagation success rates
- ✔ Reduced cold stress on plants
- ✔ Improved root zone temperatures
- ✔ Reliable year-round climate control
❓ FAQ
What size area can the Lighthouse 3kW Heater heat?
The heater is suitable for grow rooms, greenhouses, grow tents, propagation rooms, garages, and similar indoor spaces depending on insulation and environmental conditions.
Does the heater include a thermostat?
Yes, it features adjustable thermostatic temperature control for automatic environmental management.
Can it be used without heat?
Yes, the heater includes a fan-only mode for summer air circulation.
Is the heater suitable for greenhouse use?
Yes, the IPX4 splash-resistant design makes it suitable for greenhouse and humid grow room environments.
Does the heater include overheat protection?
Yes, the unit includes integrated overheat safety protection for safe operation.

