Appliance Wattage Guides
Why this matters: backup power sizing lives or dies on two numbers per appliance — running watts and starting surge. These guides give both, plus computed runtime on real power stations.
Well Pump
1,000W running · 3,000W start · 240V
Wattage + runtime math →Sump Pump
800W running · 2,000W start
Wattage + runtime math →Refrigerator
150W running · 1,200W start
Wattage + runtime math →CPAP Machine
60W running
Wattage + runtime math →Space Heater
1,500W running
Wattage + runtime math →Gas Furnace Blower
500W running · 1,500W start
Wattage + runtime math →Window AC
900W running · 1,800W start
Wattage + runtime math →Microwave
1,500W running
Wattage + runtime math →Know your loads? Jump to the sizing calculator.