L.B. White Boss 400DF Forced Air High CFM 400,000 BTU Direct Fired, Dual Fuel LP/NG Heater

Boss 400 DF Direct Fired Portable Heater combines 99% fuel efficiency with the ability to distribute heat into large construction and industrial spaces. 400,000 btu/hr with high 2500 CFM.  99% direct-fired fuel efficiency boosted by onboard thermostat and option to move air only like a fan. Note: Items frequently purchased with this unit: Regulator (LB50025141) and LPG Hose Kit (LB50025965)

HEAT ESTIMATOR

Use the Heat Estimator calculation tool below to calculate the number of BTU's required to warm your space based on the cubic feet and the heat differential required. The tool will also recommend specific LB White products that will meet these requirements.

Features

• Built-in volt meter and thermostat
• Quick switch Dual Fuel
• When space is up to temp, make heated air work harder using only the unit’s fan in vent mode
• No parts or downtime to change fuel, confirm onsite voltage, manage heat output
• Truly portable with cool-end handle and stackable
• Saves storage space with option to stand on end or stack
• Built to last with Tri-shield™ coated steel case, and powder coated hardware that protects against abrasion and corrosion
• Indoor/outdoor rated
• Rust resistant Tri-shield case
• Diagnostic light for quicker troubleshooting
• 10-side case for easy inside-out access

Specifications

• Direct fired heat
• Quickswitch™ Dual Fuel LP or NG
• 400,000 BTU
• 2,500 CFM blower fan output
• Spark ignition
• LP fuel consumption 18.56 L.B.s. gas /hour and NG fuel consumption 400 cu. ft. /hr.
• Inlet LP & NG gas pressure 7 in. min./ 13.5 in. Max (in. W.C.)
• 120 Volts/ 60 Hz/ 1 Phase
• 1/2 HP
• Heavy duty handle on cool end
• On board Volt meter
• Thermostat control
• Diagnostic light
• Vent mode
• Gas pressure regulator, sold separate
• Use standard gas hose, sold separate
• Aluminum & Steel
• Never flat wheels
• For use in construction and agriculture
• 50 in. L x 21-1/4 in. W x 22-1/2 in. H
• ANSI Z83.7-2017 / CSA 2.14-2017
• 2 Year warranty

Downloads

Product Manual (PDF Download)

Catalog (PDF Download)