The Premier® 80 DF 2.0 portable heater offers the ultimate combination of efficiency and convenience. With an enclosed flame design this direct-fired portable heater combines 99% fuel efficiency with the convenience of heat that can be ducted up to 12 feet. Generates less than 70 dB of sound so you can comfortably have a conversation while operating. Operates from propane gas or natural gas. A lockable fuel selector value allows for safe switching between fuel sources – no conversion kit required. It produces 80,000 BTU per hour with 450 CFM of heated air output. Easily start from a reliable electronic ignition and manage temperature with remote thermostat. Manufactured in Wisconsin from durable components to provide years of dependable performance. Backed by a 2-year warranty and lifetime of technical support. Heat Estimator Features Enclosed flame promotes safer work environments and provides option to duct 99% direct-fired fuel efficiency boosted by remote thermostat, and option to move air only like a fan Quiet with less than 70 dB operation Dual Fuel (DF) models can quickly switch from NG to LP Fits through standard 36” door frame, while handles provide easy maneuverability Hose, regulator, and thermostat included Owners Manual