Black Widow 800 Propane Bed Bug Heater – Complete Package

Black Widow 800 Propane Heater Complete Package – Powerful Heater to Kill Bed Bugs with 4 High-Temp Air Movers

The Black Widow 800 Complete Propane Heater Package is a professional-grade solution designed for fast and effective heat treatments to kill bed bugs. This complete setup includes the Black Widow 800 propane heater and four high-temperature AM3700 axial air movers, giving pest control pros everything needed to tackle larger infestations with confidence and efficiency.

This direct-fired propane heater delivers a high output of 85,000 BTUs—equal to 25.4 kW of electric heat—and is capable of treating 850 to 1,000 square feet when used with the included four fans. Its built-in 450 CFM fan, digital thermostat, and remote temperature monitoring system ensure precise heat control throughout the treatment area. Most infestations can be resolved in as little as 4 hours for smaller spaces and up to 8 hours for larger units.

Compact yet powerful, the Black Widow 800 weighs only 122 pounds and measures 31” x 22” x 27”, making it ideal for use in apartments, high-rise buildings, and tight-access areas. The straight axle and rugged wheels make transport between job sites simple and secure. It operates on two standard 20-pound propane tanks (not included) and requires just one grounded 120-volt circuit for the fan and controls.

Safety is built into every feature of the Black Widow 800. The unit includes integrated flame detection, airflow monitoring, and temperature sensors, and it is certified to ANSI Z223.1 NFPA 54 standards for safe use in both the U.S. and Canada. The airflow system draws in ambient air and pushes hot air out the opposite side for even heat distribution, which can be extended further using optional ducting. Minimal training is required, and one technician can operate the system.

High-Temp Air Movers Included

The included AM3700 air movers are designed specifically for high-heat pest control applications. Built to withstand temperatures up to 158°F, each axial fan pushes 3700 CFM of airflow and features a 2-speed motor, GFCI outlet, hour meter, and a 25-foot cord. These fans can be daisy-chained—up to 6 on a 15-amp circuit or 9 on a 20-amp circuit. Their secure stacking design allows for up to 8 units stacked high, offering a space-saving solution for storage and transport.

Whether you’re a pest professional or property maintenance team, this complete package offers a reliable, efficient, and portable heater to kill bed bugs—perfect for both large and small-scale infestations.

Flagro Model #THC-85P, Prevsol part #BBHD-800

Ideal uses for Black Widow 800 Propane Heater to kill bed bugs: Hotels, Apartments, Housing Authority, Dorms, Cabins, Small Homes, and more

• Lightweight
• Small footprint
• Wheels for easy maneuverability
• Remote thermostat for temperature monitoring
• Proven combustion technology
• Multiple integrated safety sensors
• Simple setup to start producing heat in just 5 minutes
• Achieve target temperatures in under an hour for typical treatment areas
• No cumbersome fresh air module – simply open a window 6″ in the room where the Black Widow 800 is located
• No circuit splitters are required
• Operates directly in the treatment space
• No cumbersome ducting is needed
• Treat furniture and belongings in place
• Made in America

• BTU per Hour: 85,000 BTUs/hour in this powerful propane heater to kill bed bugs
• Power Requirement: one 120-volt grounded circuit
• Fuel Type: Vapor Propane
• CFM: 450
• Fuel Consumption: .89 GPH
• AMPS: 15
• Propane Use: 10 hours of continuous operation on two 20-pound propane tanks
• Weight: 122 pounds
• Dimensions: 31” x 22” x 27”
• Clearance: Top – 5.8 feet, Front – 2 feet, Sides – 1 foot, Rear – 2 feet
• Certification: ANSI Z223.1 NFPA54

(1) Black Widow 800 Propane Bed Bug Heater

(4) AM3700 Axial Air Movers

(1) Remote Thermostat

(2) TR42A Bluetooth Thermo Recorder

(1) 15’ Propane Hose

(1) Dual Manifold Propane Splitter

(1) 3′ 110-Volt Extension Cord

(1) 25’ 110-Volt Extension Cord

(1) Infrared Temperature Gun

(4) Sprinkler Covers

1 Year Warranty

Black Widow 800 Operations Manual (Flagro Model #THC-85P)

Black Widow 800 User Guide