KING redefines comfort with the modern architectural design of the PX series ComfortCraft wall heater. The PX series heater delivers nearly 100% efficient electric heat, perfect for large living areas yet whisper quiet enough for bedrooms. The premium combination of an efficient high-mass steel element and whisper quiet squirrel cage blower, offers top of the class performance and years of trouble-free operation. For best results use with an electronic line voltage wall thermostat. Also available with a built-in thermostat. KINGs exclusive Pic-A-Watt heating element allows customers to select from a range of wattage options, tailoring the heater to a rooms specific heating requirements. For smaller areas, chose a lower wattage to efficiently heat the room. For larger rooms, choose a higher wattage and maximize comfort. It’s as easy as unplugging a wire to select the wattage during installation. Now That’s Smart.