Dr. Infrared Heater 3000W / 10,400 BTU/hr Greenhouse Heater

Dr. Infrared Heater DR-218-3000W Greenhouse Heater | 240V Freeze Protection for Larger Growing Spaces

When winter temperatures drop below freezing, a 3000-watt greenhouse heater can keep tender plants from frost damage in a larger kit, garage, or workshop. The Dr. Infrared Heater DR-218-3000W is a fan-forced electric heater built for damp greenhouse conditions. It requires a 240V, 20A circuit and delivers roughly twice the output of the 1500W model.

What the 3000W DR-218 does
This heater uses fan-forced air to move heat across plants, benches, and soil so they stay above freezing instead of turning into frozen, soggy mush. High and Low power settings, a precision temperature sensor, an adjustable thermostat, and built-in overheat protection help you hold a stable climate through cold nights.

Key features

• 3000W fan-forced electric heat with High and Low settings
• 240V, 20A required (NEMA 6-20 style circuit; not a standard 120V outlet)
• About 10,400 BTU/hr output
• Manufacturer-rated coverage up to about 300 sq ft
• Adjustable thermostat with precision temperature sensor (typical range 32°F–104°F / 0°C–40°C)
• Built-in overheat protection
• Totally enclosed, thermally protected, heavy-duty ball-bearing motor; permanently lubricated for life
• Low-maintenance design
• Heavy-duty steel housing
• IPX4 splash-resistant structure for greenhouse humidity and water splash
• Lightweight and portable (about 10" × 10" × 15", ~13–14 lb)

Why IPX4 matters in a greenhouse
Greenhouses collect condensation and splash from watering. IPX4 protection means the housing is rated against water splashing from any direction—better suited to a damp growing space than a typical indoor space heater.

Best uses

• Medium greenhouses up to about 300 sq ft
• Overwintering tender plants, starts, and cuttings in larger kits
• Freeze protection when nights drop below 32°F
• Supplemental heat in a garage or workshop that already has 240V service

Setup and safety

• Requires a grounded 240V, 20A circuit. Do not plug this model into a standard 120V outlet.
• Manufacturer guidance: do not use an extension cord, surge protector, or power strip.
• Keep at least 3 feet of clearance in front of the heater and away from the sides and rear.
• Aim airflow across the growing area, not into a corner or against plastic.
• Coverage depends on insulation, drafts, outdoor temperature, and plant layout. A leaky or poorly insulated house may need extra capacity on the coldest nights.

FAQs

Will a 3000W greenhouse heater keep plants from freezing?
Yes, in a medium, reasonably sealed greenhouse. The DR-218-3000W is sized for about 300 sq ft of manufacturer-rated coverage. Very large or drafty houses may still need more heat.

Is the DR-218-3000W waterproof?
No. It is IPX4 splash-rated, which protects against water splash—not standing water or a direct hose spray.

Does this model have High and Low settings?
Yes. The 3000W unit includes High and Low power settings plus thermostat control. The 1500W / 120V version has a single heat setting.

What outlet does the 3000W heater need?
A dedicated 240V, 20A circuit. Many shops use a dryer-style receptacle. Confirm plug type and circuit capacity before you order.

How much power does it use?
About 3 kWh per hour at full output. Actual use is lower when you run Low or when the thermostat cycles the heater off.

Can I use this in a garage or workshop?
Yes. The same unit is sold for greenhouse, garage, and workshop use. The enclosed motor and IPX4 housing help in damp work spaces as well as plant houses.