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Lighthouse 3kw Greenhouse Heater

Lighthouse 3kw Greenhouse Heater

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  • High performing and powerful heater
  • Precise temperature control with the sensitive thermostat
  • 3 Power Control Settings
  • Quiet Running
  • Easy to use, install and maintain
  • simplistic and robust design
  • Dual use – can be used as both a heater and a fan
  • Overheating safety protection
  • IP24 rated


The LightHouse 3kW Greenhouse Heater is a great tool to use when trying to maintain temperatures during the cooler months.

The 3kW powerful output means it can quickly and effectively heat up large grow spaces. It also allows growers to reach and preserve the desired temperature allowing their plants to thrive as well as getting more consistent results between cycles thanks to more reliable temperatures.

As well as helping plants maintain their metabolic processes at the correct grow room temperatures, activating heaters when your lights go out can really help reduce losses to botrytis (Rot). In a cool environment without a heater, when the lights go out the heat in the grow room drops significantly - due to the link between humidity and temperature, when temperatures drop, humidity rises. This increase causes the water in the air to condense on the cooler areas and plant parts, This moisture can become trapped and provides the perfect breeding ground for diseases that can cost the entire crop. Using a heater when lights go out stops this condensing process from happening.

The simple but robust design allows growers to easily use and place in a busy grow room environment with the tilt function allowing the warm stream of air to be directed wherever it’s needed.

3 power levels to control different heat settings means the heater is multipurpose, versatile and suitable for a range of grow room sizes. We recommend avoiding pointing the fan directly at plants, instead face the hot air stream towards a wall or near your intake for extraction for more uniform heat dispersion.

How does the lighthouse fan heater work?

This is a fan heater that works by pushing hot air out via an element and fan, being 3 kw, it is more powerful than the majority of hobbyist heaters in the market and enters the ‘professional’ arena of shop space heaters.

A function without heater setting means the product can also be used as a simple fan to provide cool and circulating air.

The tubular design is considered ‘professional’ as it emulates gas heaters and is considered more efficient in both its output and the space that it takes up – leaving more room for plants.

Lighthouse heater 3kw Tech specs:

Technical specifications:

Settings: Fan only; 1500 W; 3000 W

Mains input: AC 220 – 240 V | 50 Hz

Net Weight: 3.6 KG

Power: 3050 W

Dimensions: 245 x 240 x 310

Plug: UK 3-pin, 13 A Fuse

Thermal Protection (internal): 55 °C

Rating: IP24 (protection from fingers; protection from splashed water)

How to use Lighthouse 3kw Greenhouse Heater

Plants are able to carry out their metabolic processes best in the range of 20 - 26°C – try to maintain your grow room’s temperature at 25°C during the ‘lights on’ phase to maximise your crops potential.

Try to maintain ‘lights off’ temperatures around 5°C cooler than ‘lights on’ temps and never let the room drop more than 10°C as this is when humidity swings occur that can negatively affect the health of your crop.

The heater will warm the surface you put it on – do not place it on flammable surfaces (like carpets or rugs)

Can be used in conjunction with the Wireless Thermostat (on 1500W setting) for absolute control over your garden’s temperature.


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