Need advice? We are here to help. Call us on 0800 085 7995

free delivery on uk mainland orders over 50

Ora 3KW Greenhouse Heater

Ora 3KW Greenhouse Heater

Quick find: 2000012975

In stock

Be the first to review this product

  • High performance - powerful heater
  • Precise temperature control when used with a thermostat
  • 3 Power Control and cold air Settings
  • Fan post-cooling function to cool down components
  • Easy to transport and operate
  • Ceramic PTC heating drum
  • Fan motor with thermal protection

Free Next Day Delivery


The Ora 3 kW Greenhouse Heater is a worthy investment. Thanks to its high airflow, the Ora 3 kW PTC ceramic space heater can help save your crops as it allows you to maintain growroom temperatures during the cooler months. The heating elements don’t glow, like some other, cheaper heaters, so won’t interrupt light cycles.

Configurable output settings of fan-only, 1 kW, 2 kW and 3 kW means this greenhouse heater can quickly and effectively heat small, medium or larger grow spaces. High airflow allows you to quickly preserve growroom temperatures during light off-cycles, which allows your plants to thrive and avoids issues like temperature related stress. This greenhouse heater will help you improve your results through consistent and repeatable temperatures grow after grow.

A post-heating function works to leave the fan running to cool down components after between on-cycles.

Constant, correct grow room temperatures help plants maintain their metabolic processes. Activating heaters when your lights go out can really help reduce losses to botrytis (Rot). Cool environments without a heater in the grow room will see wide temperature swings when the lights go out as the heat 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 you an entire crop. Using a heater when lights go out really helps to avoid the condensing process from happening.

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

Three heat settings and a separate cold air setting allows fine control for different heat settings and makes this heater versatile and suitable for a range of grow room sizes up to 35 meters square.

Garden Tip:

  • 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.
  • The heater will emit heat to the surface it is placed on. It is advised to avoid using the heater on flammable surfaces like cardboard or carpet.

How does the Ora Fan Heater Work?

This 3 kW fan heater works by pushing hot air out via a heating element and fan. It is more powerful than the majority of hobbyist heaters on the market and easily brings you up to the ‘professional’ arena of shop space heaters. The Fan Heater has built-in thermal protection, giving you peace of mind while you're away from your grow room. To facilitate rapid, healthy plant growth, ideally, you’ll run your grow room heaters using thermostats to maintain optimal growroom conditions. Using thermostats allow you to only power the heaters when the temperature drops below a set temperature. Thermostats also help keep your heating as energy efficient as possible, saving you money.

Ora 3 kW Greenhouse Heater Technical Specifications

Title Specification
Settings Fan only, 1000 W, 2000 W 3000 W
Mains Input AC 220 – 240 V | 50 Hz
Net Weight 2.7 kg
Dimensions 245 W x 305 H x 200 D
Plug UK 3-pin, 13 A Fuse
Thermal Protection (internal) Yes
Thermal Protection (internal) Yes

How to use the Ora 3 kW 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.

For absolute growroom temperature control, use this heater in conjunction with a wireless thermostat for heaters.


Reviews from feefo

There are no reviews yet

Your shopping basket has no items.

Write Your Own Review

You're reviewing: Ora 3KW Greenhouse Heater

*How do you rate this product?