DuroMax XP5500EH Dual Fuel is a portable generator from DuroMax, rated 4,500 running watts with 5,500 starting watts on gasoline (4,275 W on propane), with 120/240V output.
General
Type
portable
Fuel
gasoline, propane
Power output
Running watts (gas / LP for standby)
4500 W
Starting watts (gas)
5500 W
Running watts (propane)
4275 W
Starting watts (propane)
5225 W
Performance
Runtime at 50% load (gas)
9 h
Fuel tank
4 gal
Electrical
Output voltage
120/240V
Features
Start type
electric
Engine
Engine displacement
224 cc
Physical
Weight
124 lb
What the numbers mean
At 4,500 running watts
on its best fuel, this unit covers outage essentials — a refrigerator, lights, electronics, and a furnace fan or sump pump via extension cords — but not large 240 V appliances.
Runs on gasoline, propane — expect lower output on propane (roughly
10%) and natural gas (roughly 20%) than on gasoline; the spec table shows the
published per-fuel ratings.
Runtime: 9 h at 50% load on the 4-gallon tank
— roughly 14.4 h at 25% load (estimated)
.
Estimated fuel cost for 24 h at ~50% load: about $34 on gasoline at
national average prices (assumptions).
House hookup: pairs with a 30 A generator inlet (
L14-30) and a transfer switch or interlock
installed by an electrician.
What can the DuroMax XP5500EH Dual Fuel run during an outage?
With 4,500 running watts on its best fuel, the DuroMax XP5500EH Dual Fuel covers outage essentials — a refrigerator, lights, electronics, and a furnace fan or sump pump via extension cords — but not large 240 V appliances. Add up your actual loads with a sizing worksheet — the bands here are rough guidance, not a load calculation.
How long does the DuroMax XP5500EH Dual Fuel run on a tank of gas?
About 9 hours at 50% load on its 4-gallon tank, per the manufacturer's rating. At a lighter 25% load, figure roughly 14.4 hours (estimated — fuel burn does not scale linearly with load).
What does the DuroMax XP5500EH Dual Fuel cost to run for a day?
Roughly $34 for 24 hours of continuous operation at about 50% load on gasoline, at national average fuel prices. The assumptions behind this estimate are documented on the methodology page; your fuel price and load change the figure.
What inlet does the DuroMax XP5500EH Dual Fuel need to power a house?
A 30 A generator inlet (an L14-30 connection) wired to a transfer switch or interlock kit — an electrician's job that normally requires a permit. Never backfeed through a dryer or wall outlet.
