Dr. Infrared Heater 1500W / 5,200 BTU/hr Greenhouse Heater

Dr. Infrared Heater DR-218-1500W Greenhouse Heater | 120V Freeze Protection for Tender Plants

When winter temperatures drop below freezing, a 1500-watt greenhouse heater can keep tender plants from frost damage. The Dr. Infrared Heater DR-218-1500W is a compact, fan-forced electric heater made for small greenhouses, garages, and workshops. It plugs into a standard 120V outlet and is built to handle the humidity and splash common in a plant house.

What the 1500W DR-218 does
This heater uses fan-forced air to circulate warmth around plants, benches, and soil so they stay above freezing instead of turning into frozen, soggy mush. A precision temperature sensor, adjustable thermostat, and built-in overheat protection help you hold a stable climate without constant babysitting.

Key features

• 1500W fan-forced electric heat on standard 120V
• About 5,200 BTU/hr output
• Manufacturer-rated coverage up to about 150 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 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

• Small hobby greenhouses up to about 150 sq ft
• Overwintering tender plants, starts, and cuttings
• Freeze protection on cold nights
• Supplemental heat in a garage or workshop on a standard 120V circuit

Setup and safety

• Plug directly into a grounded 120V circuit.
• 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. On the coldest nights, a poorly insulated house may need extra heat.

FAQs

Will a 1500W greenhouse heater keep plants from freezing?
Yes, in a small, reasonably sealed greenhouse. The DR-218-1500W is sized for about 150 sq ft of manufacturer-rated coverage. Larger or leaky houses may need more capacity.

Is the DR-218-1500W waterproof?
No. It is IPX4 splash-rated, which protects against water splash—not standing water or a direct hose spray.

Does the 1500W model have high and low settings?
No. The 1500W unit has a single heat setting plus thermostat control. The 3000W / 240V version is the model with High/Low power settings.

How much power does it use?
About 1.5 kWh per hour at full output. Actual use is lower when the thermostat cycles the heater off.

Can I use this in a garage?
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.