Woot offers Heat Storm HS-6000-GC Garage Heater, Gray for $151.99 (orig. $299.99). Free shipping for Prime Members.

Product Description:
​The Heat Storm 3000 to 6000 watt Ceiling or Mounted garage heater is the perfect addition to your garage or work station.
You can control all of the thermostat features from your phone. All you need is a wifi connection and a smart phone and you can download the app and connect your heater.
It's perfect for those cold days where you would like to pre-heat your area prior to going out to your garage or work place. It does require hard wire installation.
Electrician installation recommended. Cords not included due to the customized install of case by case scenario.

• INSTANT HEAT - 3000 to 6000 watts of quiet and comfortable heat. It warms your room with adjustable 10,000 - 20,000 BTU Output.
• CEILING OR WALL MOUNTED - Hardwired installation required. Ideal for garages, workshops, office spaces, etc.
• WIFI ENABLED - Connect this heater to your wifi and then control this heater from your phone anywhere!
• BUILT IN THERMOSTAT - Set your heater to the perfect temperature and it will automatically turn on and off to keep it that way.
• SET SCHEDULES - This is perfect for the home office, garage, or workshop. You can set a schedule for heat to turn on before you even get there! You can also repeat the schedule for specific days. Wiring not included, Electrician install recommended