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Machine and power (Watts) required to run

Flourescent Lamp 60 5” Angle Grinder 750
Light Bulb 100 Hair Dryer 1000
Video 100 Lawnmower 10” Hover 1000
Palm Sander 175 5" Circular Saw 1000
Fridge* 200 Router 1000
Slow Cooker 200 Belt Sander 1020
Radio / Hi-Fi 200 Vacuum Cleaner 1100
Colour TV 250 Coffee Maker 1200
Central Heating Pump 300 Steam Iron 1250
VDU 300 Cement Mixer* 1320
Strimmer 10” 350 Chain Saw 10”-16” 1500
Printer 350 600W Microwave 1500
Jigsaw 400 Portable Heater 1500
Bench Grinder 400 Hot air gun 1500
Computer 400 Photocopier 1600
13mm Drill 450 8" Floor sander 2000
Orbital Sander 450 Compressor* 2200
Hedge trimmer 500 12” Angle grinder 2500
Flood lamp 500 Hammer drill 2500
4” Angle grinder 550 Kettle 2500
1/3 HP Airless Sprayer 600 Fan heater 3000
Telefax 600 Pressure washer 3500
Deep freeze 700 Arc welder 130A 3500
Planer 700 Washing machine 4000
       
* see motor starting (below)
Motor Starting
Motor Starting is an important consideration when buying a generator.
Keep in mind that induction type motors, like those that run sump pumps, refrigerators and compressors , typically
require 2 to 3 times their listed running watts to start.
Below is a chart you can use to determine how many Watts you will need to start up motors of various sizes and types.
NB Power tools use a universal commutator that do not require any additional start up power.
       
Motor Size H/P Running Watts Watts Req. to Start Motor
1/8 275 850
1/6 275 850
1/4 400 1050
1/3 450 1350
1/2 600 1800
3/4 850 2600
1 1100 3300
2 2200 6600