Tip: Don't just add up the total wattage for everything you wantSee our section on power management to learn how to use a smaller generator to power more. More help on determining Refrigerator or Freezer (Energy Star) as indicated on bulb (i.e. 60W) as indicated on bulb (i.e 60W) Furnace Fan, gas or fuel oil Coffee Maker (4 cup) Electric Range (8-inch element) Window Air Conditioner (10,000 BTU) Tip: Don't just add up the total wattage for everything you want Hair Dryer (1600 watts) Microwave Oven (650 watts) See the chart below to estimate your power needs. Bench Grinder (8 in.) Circular Saw (Heavy Duty, 7 1/4 in.) 3/8 inch, 4 amps 1/2 inch, 5.4 amps Electric Chain Saw (14 inches, 2 hp) Hand Drill (1/2 in.) High-pressure Washer (1 hp) Table Saw (10 in.) Capacitor Start Induction Run Capacitor Start Capacitor Run Electric Fence, 25 miles Milker (vacuum pump, 2hp)