Size by appliance
Every load's running watts, startup surge, and duty cycle — and the power station size it needs. Pick the one you're trying to back up, or add several together in the sizing tool.
⚡ Informational only — a computed sizing estimate from published appliance-wattage charts and manufacturer station specs. It is not an electrical guarantee. For hardwired or whole-home backup, transfer switches, or any permanent install, consult a licensed electrician. Wattages are representative chart values; your model may differ — check the nameplate.
Outage Essentials
Refrigerator (modern)
150 W running · 1,200 W surge 35% duty high surge
Chest Freezer
100 W running · 1,000 W surge 35% duty high surge
WiFi Router + Modem
20 W running continuous
LED Lights (10 bulbs)
100 W running continuous
Garage Door Opener (1/2 HP)
550 W running · 1,100 W surge 5% duty high surge
Medical & CPAP
CPAP Machine (no humidifier)
40 W running continuous
CPAP with Heated Humidifier
60 W running · 95 W surge 80% duty high surge
Oxygen Concentrator
350 W running · 600 W surge continuous high surge
Heating & Cooling
Space Heater (1500 W)
1,500 W running continuous
Window AC (8,000 BTU)
715 W running · 1,250 W surge 70% duty high surge
Window AC (12,000 BTU)
1,100 W running · 1,800 W surge 70% duty high surge
Gas Furnace Blower (1/2 HP)
800 W running · 2,350 W surge 50% duty high surge
Pellet Stove
300 W running · 800 W surge 60% duty high surge
Portable AC (10,000 BTU)
1,100 W running · 1,800 W surge 70% duty high surge
Box / Pedestal Fan
100 W running · 200 W surge continuous high surge
Kitchen
Microwave (1000 W cooking)
1,200 W running continuous
Coffee Maker
1,000 W running continuous
Electric Kettle
1,500 W running continuous
Toaster
850 W running continuous
Slow Cooker
200 W running 50% duty
Hot Plate (single burner)
1,200 W running 80% duty
Comfort & Electronics
LED TV (55")
120 W running continuous
Laptop
60 W running continuous
Desktop Computer
200 W running · 400 W surge continuous high surge
Phone / Tablet Charging
12 W running continuous
Electric Blanket
100 W running 50% duty
Pumps, Tools & Off-Grid
Sump Pump (1/3 HP)
800 W running · 1,500 W surge 20% duty high surge
Sump Pump (1/2 HP)
1,050 W running · 2,150 W surge 20% duty high surge
Well Pump (1/2 HP)
1,000 W running · 2,100 W surge 15% duty high surge
Dehumidifier
500 W running · 900 W surge 60% duty high surge
Mini Fridge
100 W running · 400 W surge 35% duty high surge
Power Tool Charger
100 W running 50% duty
32 appliances tracked. Don't see yours? The closest one is a good proxy — or add a custom load by matching its nameplate watts in the sizing tool.