Bring powerful, customizable warmth to larger spaces with the GH10K Smart and GH15K Smart electric heaters. The GH10K Smart delivers 10,000 W / 34,129 BTU of heating for areas from 1,200–2,000 sq. ft., while the GH15K Smart provides 15,000 W / 51,194 BTU for spaces from 1,600–2,500 sq. ft. An integrated fan quickly distributes warm air throughout the space for comfortable, even heating. WiFi control joins the control panel and remote for convenient operation, with a 45–95°F temperature range and 1–12-hour timer options for personalized comfort. Adjustable louvers and flexible mounting angles let you direct heated air where you need it most. ETL-listed for safe use, each heater features an integrated thermostat to help maintain your preferred temperature and energy efficiency, plus an automatic shut-off function to help prevent overheating during extended operation. Professional installation is required: the power cord is not included, and a licensed electrician must hardwire the unit to a single-phase 240 V AC connection in accordance with all applicable U.S. national and local electrical codes.