How Much Fuel Does A 4500 Watt Generator Use?

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4500 watt generators use around 0.16 to 0.6 gallons of fuel an hour and around 0.15 gallons to 0.33 gallons to generate one kWh at 25% to 50% load.

4500 watt dual fuel generators use around 0.9 lb to 2.22 lb of propane an hour and around 1.01 lb to 1.76 lb of propane to produce 1 kWh at 25% to 50% load.

However, 4500 watt generators vary a lot in this area from brand model to brand model.

Knowing exactly how much fuel a 4500 watt generator uses can be helpful when preparing for your camping trip or other activities.

How much gas does a 4500 watt generator use?

4500 watt generators use around 0.16 to 0.6 gallons of fuel an hour and around 0.15 gallons to 0.33 gallons to generate one kWh at 25% to 50% load.

That being said, 4500 watt generators vary in terms of how much gas they use. Even though they basically all have 4500 starting watts capacity.

Knowing how much gas your 4500 watt generator uses allows you to prepare enough fuel and allows you to plan your refueling sessions.

In turn, you want to check these details for each of the generators in this category in the table below.

Together with how long 4500 watt generators run at certain loads, you can calculate their gas usage per hour and how much gas each model needs to generate one kWh.

One kWh comes down to providing 1000 watts for one hour at a time.

4500 Watt
Generator Name
Gas
Tank Size
Gas Usage
Per Hour
Gas To Generate
1 kWh
Continuous
Watts
Dewalt DXGN45007 Gallons0.47 Gallons
At 50% Load
0.22 Gallons
At 50% Load
4200 Watts
Firman H036515 Gallons0.36 Gallons
At 50% Load
0.20 Gallons
At 50% Load
3650 Watts
WEN GN45004 Gallons0.31 Gallons
At 50% Load
0.17 Gallons
At 50% Load
3600 Watts
WEN DG4500iX4 Gallons0.33 Gallons
At 50% Load
0.18 Gallons
At 50% Load
3650 Watts
Pulsar PG4500iSR3.2 Gallons0.29 Gallons
At 50% Load
0.16 Gallons
At 50% Load
3700 Watts
A-iPower SUA45004 Gallons0.36 Gallons
At 50% Load
0.21 Gallons
At 50% Load
3500 Watts
Powerhorse 45003.9 Gallons0.37 Gallons
At 50% Load
0.2 Gallons
At 50% Load
3600 Watts
DuroMax XP4500DX4 Gallons0.16 Gallons
At 25% Load
0.18 Gallons
At 25% Load
3500 Watts
Ryobi RY9036226 Gallons0.6 Gallons
At 50% Load
0.33 Gallons
At 50% Load
3600 Watts
Firman W03661OF6 Gallons0.27 Gallons
At 25% Load
0.3 Gallons
At 25% Load
3650 Watts
Powermate PM45005 Gallons0.26 Gallons
At 25% Load
0.29 Gallons
At 25% Load
3600 Watts
Generac 7677 GP36003.7 Gallons0.4 Gallons
At 50% Load
0.22 Gallons
At 50% Load
3600 Watts
Westinghouse iGen45003.4 Gallons0.19 Gallons
At 25% Load
0.2 Gallons
At 25% Load
3700 Watts
Cummins Onan P4500i3.4 Gallons0.19 Gallons
At 25% Load
0.2 Gallons
At 25% Load
3700 Watts
Champion 201054 45002.9 Gallons0.17 Gallons
At 25% Load
0.19 Gallons
At 25% Load
3650 Watts
WEN 56455i2.2 Gallons0.26 Gallons
At 50% Load
0.15 Gallons
At 50% Load
3500 Watts
DuroMax XP4500iH2.64 Gallons0.17 Gallons
At 25% Load
0.18 Gallons
At 25% Load
3600 Watts
Briggs & Stratton P45003.5 Gallons0.22 Gallons
At 25% Load
0.24 Gallons
At 25% Load
3700 Watts
Yamaha EF4500iSE4.5 Gallons0.3 Gallons
At 25% Load
0.3 Gallons
At 25% Load
4000 Watts
Champion 200986 45002.3 Gallons0.16 Gallons
At 25% Load
0.19 Gallons
At 25% Load
3500 Watts
Powerhorse LC4500i2.6 Gallons0.26 Gallons
At 25% Load
0.3 Gallons
At 25% Load
3500 Watts
How much gas 4500 watt generators use

How much propane does a 4500 watt generator use?

4500 watt generators use around 0.9 lb to 2.22 lb of propane an hour and around 1.01 lb to 1.76 lb of propane to produce 1 kWh at 25% to 50% load.

The propane run times for 4500 watt generators are typically for a 20-lb tank. So even when this was not mentioned, I assumed the brand still used the 20-lb propane tank for the calculations.

Besides this and the amounts of fuel mentioned in pounds, the principles behind the table below are the same as the gasoline 4500 watt generator table.

4500 Watt
Generator Name
Fuel
Tank Size
Propane Usage
Per Hour
Propane
To Generate
1 kWh
Continuous
Watts
WEN DG4500iXYour Own 20-lb
Propane Tank
1.67 Pounds
At 50% Load
1.01 Pounds
At 50% Load
3285 Watts
Champion 200988 4500 DFYour Own 20-lb
Propane Tank
0.90 Pounds
At 25% Load
1.15 Pounds
At 25% Load
3150 Watts
Westinghouse iGen4500DFAssuming
The Same
0.91 Pounds
At 25% Load
1.09 Pounds
At 25% Load
3330 Watts
Champion 200978 4500 DFYour Own 20-lb
Propane Tank
0.95 Pounds
At 25% Load
1.04 Pounds
At 25% Load
3650 Watts
PULSAR PG4500BISRCOYour Own 20-lb
Propane Tank
1.82 Pounds
At 50% Load
1.09 Pounds
At 50% Load
3330 Watts
DuroMax XP4500DXYour Own 20-lb
Propane Tank
1 Pound
At 50% Load
1.2 Pounds
At 50% Load
3325 Watts
WEN DF452iXYour Own 20-lb
Propane Tank
2.22 Pounds
At 50% Load
1.41 Pounds
At 50% Load
3150 Watts
DuroMax XP4500iHYour Own 20-lb
Propane Tank
1.05 Pounds
At 50% Load
1.23 Pounds
At 50% Load
3420 Watts
Firman WH03661OFAssuming
The Same
1.11 Pounds
At 25% Load
1.22 Pounds
At 25% Load
3650 Watts
Powermate PM4500DFAssuming
The Same
1.43 Pounds
At 25% Load
1.76 Pounds
At 25% Load
3240 Watts
How much propane 4500 watt generators use
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Author:

Mats is the founder and head editor of Generator Decision. With a combination of critical thinking, tireless research, and a healthy interest in electronics he helps people find the right generators and how to use these. At this point in the journey, Mats has done research on hundreds of portable generators.