Planner / Common setups
A CPAP uses about 60 W, or 120 W with a heated humidifier. An 8-hour night is 480–960 Wh before losses, so plan on a station of at least 1,150 Wh per night with the humidifier on. These are estimates: check your device’s power label.
Pick the closest match, then fine-tune the list below.
A CPAP with heated humidifier for an 8-hour night, plus one light. Change anything below.
2 items · adjust quantities or edit watts
CPAP machine (heated humidifier)
120 W running · 120 W starting
LED bulb (each)
15 W running · 15 W starting
86 household appliances, tools and RV loads
Refrigerator (full-size)
400 W running · 1,200 W starting
Freezer (chest or upright)
500 W running · 1,000 W starting
Mini fridge or cooler
100 W running · 600 W starting
Sump pump 1/3 HP
800 W running · 1,600 W starting
Sump pump 1/2 HP
1,050 W running · 2,150 W starting
Well pump 1/2 HP
1,000 W running · 2,000 W starting
Well pump 1 HP
2,000 W running · 4,000 W starting
Electric water heater
4,500 W running · 4,500 W starting
Furnace fan 1/8 HP (gas or oil)
300 W running · 500 W starting
Furnace fan 1/6 HP (gas or oil)
500 W running · 750 W starting
Furnace fan 1/4 HP (gas or oil)
600 W running · 1,000 W starting
Furnace fan 1/3 HP (gas or oil)
700 W running · 1,400 W starting
Furnace fan 1/2 HP (gas or oil)
875 W running · 2,350 W starting
Window air conditioner 5000 BTU
600 W running · 1,200 W starting
Window air conditioner 10000 BTU
1,500 W running · 2,400 W starting
Central air conditioner 2 ton
2,500 W running · 4,500 W starting
Central air conditioner 3 ton
3,500 W running · 6,000 W starting
Central air conditioner 4 ton
5,000 W running · 8,000 W starting
Electric space heater
1,500 W running · 1,500 W starting
Radiant heater
1,300 W running · 1,300 W starting
Ceiling fan
75 W running · 75 W starting
Box or window fan
200 W running · 200 W starting
Microwave oven
1,500 W running · 1,500 W starting
Coffee maker
1,200 W running · 1,200 W starting
Toaster
1,200 W running · 1,200 W starting
Electric range (one burner)
2,400 W running · 2,400 W starting
Electric fry pan
1,500 W running · 1,500 W starting
Electric grill (tabletop)
1,650 W running · 1,650 W starting
Slow cooker
270 W running · 270 W starting
Blender
600 W running · 1,200 W starting
Air fryer
1,500 W running · 1,500 W starting
Portable induction cooktop
1,800 W running · 1,800 W starting
Electric smoker
1,200 W running · 1,200 W starting
Dishwasher (cool dry cycle)
216 W running · 540 W starting
Dishwasher (heated dry)
2,400 W running · 2,400 W starting
Washing machine
1,200 W running · 2,300 W starting
Electric clothes dryer
6,000 W running · 6,750 W starting
Gas clothes dryer
700 W running · 2,200 W starting
TV (flat screen 20 to 55 inch)
400 W running · 400 W starting
Desktop computer
800 W running · 800 W starting
Laptop or phone charger
250 W running · 250 W starting
LCD monitor
30 W running · 30 W starting
Printer
600 W running · 600 W starting
Wi-Fi router or modem
20 W running · 20 W starting
Satellite receiver
250 W running · 250 W starting
Radio
200 W running · 200 W starting
Home security system
40 W running · 40 W starting
LED bulb (each)
15 W running · 15 W starting
CPAP machine (no heated humidifier)
60 W running · 60 W starting
CPAP machine (heated humidifier)
120 W running · 120 W starting
RV air conditioner 11000 BTU
1,010 W running · 1,600 W starting
RV air conditioner 13500 BTU
2,000 W running · 3,500 W starting
RV air conditioner 15000 BTU
2,500 W running · 4,500 W starting
RV refrigerator
600 W running · 1,000 W starting
RV microwave
1,200 W running · 1,200 W starting
RV water heater (electric)
1,500 W running · 1,500 W starting
String or LED camp lights
200 W running · 200 W starting
Portable projector
300 W running · 300 W starting
Garage door opener
720 W running · 1,420 W starting
Circular saw (7-1/4 in)
1,800 W running · 3,600 W starting
Table saw (10 in)
3,000 W running · 6,000 W starting
Miter saw (10 in)
1,800 W running · 3,600 W starting
Reciprocating saw
1,200 W running · 2,400 W starting
Angle grinder (4-1/2 in)
1,800 W running · 3,600 W starting
Electric drill (1/2 in)
600 W running · 1,200 W starting
Hammer drill
1,200 W running · 2,400 W starting
Belt sander
1,200 W running · 2,400 W starting
Air compressor 1/2 HP
975 W running · 1,600 W starting
Air compressor 1 HP
1,600 W running · 4,500 W starting
Air compressor 2 HP
2,500 W running · 7,500 W starting
Air compressor 3 HP
3,500 W running · 10,500 W starting
Pressure washer 1500 PSI
1,500 W running · 3,000 W starting
Pressure washer 2500 PSI
2,500 W running · 5,000 W starting
Welder (120V)
2,500 W running · 5,000 W starting
Welder (240V)
8,000 W running · 16,000 W starting
Work light (LED)
25 W running · 25 W starting
Work light (halogen 500 W)
500 W running · 500 W starting
Job-site heater
3,000 W running · 3,000 W starting
Battery charger (heavy duty)
2,000 W running · 2,000 W starting
Motor 1/4 HP (capacitor-start capacitor-run)
400 W running · 850 W starting
Motor 1/3 HP (capacitor-start capacitor-run)
450 W running · 975 W starting
Motor 1/2 HP (capacitor-start capacitor-run)
600 W running · 1,300 W starting
Motor 3/4 HP (capacitor-start capacitor-run)
850 W running · 1,900 W starting
Motor 1 HP (capacitor-start capacitor-run)
1,000 W running · 2,300 W starting
Motor 1.5 HP (capacitor-start capacitor-run)
1,600 W running · 3,200 W starting
Motor 2 HP (capacitor-start capacitor-run)
2,000 W running · 3,900 W starting
500W class
Your 135 W peak + 20% margin = 162 W, rounded up to the next 500 W.
Of the 11 generators we track:11 fit well
Rated 1,200 W covers your 135 W peak plus 20%.
Published runtime: 10 h (load level not stated on listing).
Rated 1,600 W covers your 135 W peak plus 20%.
Published runtime: 11 h (load level not stated on listing).
Rated 1,700 W covers your 135 W peak plus 20%.
Published runtime: 11.5 h (load level not stated on listing).
Rated 1,800 W covers your 135 W peak plus 20%.
Published runtime: 3.2 h at full rated load · 8.1 h at 1/4 load · 0.95 gal tank. At your load (8%): about 8.1 h per tank (published 1/4-load figure).
Rated 1,800 W covers your 135 W peak plus 20%.
Published runtime: 11 h (load level not stated on listing).
Rated 1,850 W covers your 135 W peak plus 20%.
Published runtime: 11.5 h (load level not stated on listing).
Rated 1,850 W covers your 135 W peak plus 20%.
Published runtime: 11.5 h (load level not stated on listing).
Rated 2,800 W covers your 135 W peak plus 20%.
Published runtime: 6.9 h at full rated load · 19.6 h at 1/4 load · 3.4 gal tank. At your load (5%): about 19.6 h per tank (published 1/4-load figure).
Rated 3,000 W covers your 135 W peak plus 20%.
Published runtime: 8.0 h at 50% load · 2.37 gal tank.
Rated 3,700 W covers your 135 W peak plus 20%.
Rated 5,500 W covers your 135 W peak plus 20%.
Published runtime: 6.4 h at full rated load · 16 h at 1/4 load · 5.1 gal tank. At your load (2%): about 16 h per tank (published 1/4-load figure).
Your list uses about 1.0 kWh a day.
Hours per day: CPAP machine 8 h, LED bulb 3 h. These are example estimates; change them under “Edit watts and hours”.Of the 11 power stations we track:11 fit well
600 W continuous covers your 135 W load plus 20%.
1,800 W continuous covers your 135 W load plus 20%.
1,800 W continuous covers your 135 W load plus 20%.
2,000 W continuous covers your 135 W load plus 20%.
1,500 W continuous covers your 135 W load plus 20%.
1,800 W continuous covers your 135 W load plus 20%.
2,200 W continuous covers your 135 W load plus 20%.
2,400 W continuous covers your 135 W load plus 20%.
3,600 W continuous covers your 135 W load plus 20%.
6,000 W continuous covers your 135 W load plus 20%.
4,000 W continuous covers your 135 W load plus 20%.
Generac GP3500iO with your list
ComfortableRated 3,000 W covers your 135 W peak plus 20%.
Tap Add to put it on your list.
The unit can start it, but not on top of your current list.
Sources suggest 20–25% headroom over peak demand TTH · medium.
Inverter and battery losses. 85% is a common rule OUP · medium; EcoFlow’s own runtime examples imply 80%.
| Power station | Capacity | Nights (8 h) |
|---|---|---|
| EcoFlow RIVER 3 Plus | 286 Wh | 0.2 |
| EcoFlow DELTA 3 Classic | 1,024 Wh | 0.9 |
| EcoFlow DELTA 3 Plus | 1,024 Wh | 0.9 |
| Anker SOLIX C1000 Gen 2 | 1,024 Wh | 0.9 |
| Jackery Explorer 1000 v2 | 1,070 Wh | 0.9 |
| Bluetti AC180 | 1,152 Wh | 1.0 |
| Jackery Explorer 2000 v2 | 2,042 Wh | 1.8 |
| Anker SOLIX C2000 Gen 2 | 2,048 Wh | 1.8 |
| Jackery HomePower 3000 | 3,072 Wh | 2.7 |
| Anker SOLIX F3800 | 3,840 Wh | 3.4 |
| EcoFlow DELTA Pro 3 | 4,096 Wh | 3.6 |
Without the humidifier (60 W) every figure roughly doubles. Some CPAP makers sell a DC power cord; running from a station’s DC port avoids inverter losses. Use only the cord your device maker specifies.