Lighthouse 1000w Oil Filled Radiator
£32.94
Grow room heaters are used to maintain stable temperatures in indoor growing environments. Consistent warmth supports healthy plant metabolism, prevents slowed growth, and helps avoid temperature-related stress — especially during lights-off periods or colder months.
Keeping your grow space within an optimal temperature range is essential for steady growth, nutrient uptake, and overall plant health.
New to indoor growing?
Our Indoor Growing & Hydroponics Explained guide covers how temperature, airflow, humidity, and lighting work together — helping you choose the right heater and climate equipment for your grow space.
Grow room heaters provide supplemental heat when ambient temperatures drop below ideal growing conditions. Different heater types emit heat in different ways, which can affect airflow, humidity, and temperature stability.
Heaters are commonly used to:
Maintain night-time temperatures
Prevent cold stress during winter
Stabilise environments in garages, lofts, sheds, or basements
Choosing the correct heater type depends on room size, insulation, ventilation, and how sensitive your plants are to temperature fluctuations.
Oil-Filled Radiators
Provide slow, even heat with minimal impact on humidity. Ideal for maintaining background warmth over longer periods.
Tube Heaters
Compact heaters designed for grow tents, cupboards, and tight spaces. They offer gentle, consistent heat near floor level.
Greenhouse Heaters
Higher-output heaters suited for larger spaces or poorly insulated grow rooms.
Heat Mats
Low-wattage heating solutions used to gently warm root zones, propagation trays, and seedlings rather than the air itself.
Grow room heaters are most useful when:
Night-time temperatures drop below optimal levels
Lights-off periods cause rapid temperature loss
Growing environments are poorly insulated
Early-stage plants or roots require additional warmth
Proper temperature control helps avoid stress-related issues such as slowed growth, nutrient lockout, and reduced yields.
Doctor Blooms stocks a wide range of grow room heaters including oil-filled radiators, tube heaters, greenhouse heaters, and heat mats from trusted brands such as Lighthouse, Gorilla, and Ultra-Therm.
If you’re unsure which heater is best for your grow space, our team can advise on sizing, placement, and safe operation.
📞 Call 01279 501857 or visit our Bishop’s Stortford showroom for expert guidance.
