Main trade-off
Generac iQ3500 Portable Inverter Generator
The selected 7723-2 package is the 49-state version. Confirm local availability and emissions requirements.
Head-to-head
Westinghouse fits larger RV and outage loads with dual fuel and 3,900 gasoline running watts. Generac is the simpler premium gasoline inverter when its display and established platform matter more.
Before you choose
Generac iQ3500 Portable Inverter Generator has the stronger fit for “Run through the night without refueling”. Westinghouse iGen5000DFc EFI Dual Fuel Inverter has the stronger fit for “Run a sump pump during an outage” and “Run a window air conditioner”.
What this is based on
This compares the current strong and useful fit assignments for the exact products. It does not turn them into one overall score.
Main trade-off
The selected 7723-2 package is the 49-state version. Confirm local availability and emissions requirements.
Main trade-off
It is not a 240V transfer-switch generator.


Generac 7723 and Westinghouse iGen5000DFc EFI compared by running and starting output, fuel and voltage, power quality and handling.
The practical choice turns on running and starting output and fuel and voltage, then on the constraints in your own setup.
Winner by situation
Provide enough surge output for a typical motor-driven sump pump after checking its nameplate.
Cover compressor startup plus the other selected loads.
Provide an RV-ready 30A path or documented adapter and sufficient compressor headroom.
Run on LPG with its lower published wattage accounted for.
For fuel and voltage, Generac iQ3500 Portable Inverter Generator records “gasoline. 120V output” and Westinghouse iGen5000DFc EFI Dual Fuel Inverter records “gasoline, propane. 120V output”. This can be a hard compatibility check for the available supply, connection and intended load.
Use a documented wireless remote start while still operating the generator outdoors.
What matters in practice
Generac iQ3500 Portable Inverter Generator has the stronger fit for “Run through the night without refueling”. Westinghouse iGen5000DFc EFI Dual Fuel Inverter has the stronger fit for “Run a sump pump during an outage” and “Run a window air conditioner”.
This compares the current strong and useful fit assignments for the exact products. It does not turn them into one overall score.
Both products cover the same 3 of 3 buyer requirements attached to this comparison. The choice moves to “running and starting output” and “fuel and voltage”.
This checks the two products against the same selected needs, then names the first verified differences that remain.
8 of 24 checked generator sets cover both “Keep a refrigerator and essential lights on” and “Run laptops and sensitive electronics”. Both products are in that group.
The count is reproduced by filtering the current category dataset for products with a strong or useful fit for both needs.
Try your real numbers
The result checks hard limits only. Preferences stay out of the calculation.
3,000 running watts and 3,500 starting watts on gasoline. This load plan calls for 1,200 running and 2,900 starting watts with reserve.
3,900 running watts and 5,000 starting watts on gasoline. This load plan calls for 1,200 running and 2,900 starting watts with reserve.
The estimate adds simultaneous running watts, the largest single startup surge and 15% headroom. Confirm every appliance label before relying on it. Never run a fuel-burning generator indoors, in a garage or near doors, windows or vents.

Generac, 7723-2
It supplies 3,000 running watts and 3,500 starting watts on gasoline. It can run on gasoline.

Westinghouse, iGen5000DFc EFI
It supplies 3,900 running watts and 5,000 starting watts on gasoline. It can run on gasoline and propane.
Meaningful differences
| What changes | Generac iQ3500 Portable Inverter Generator | Westinghouse iGen5000DFc EFI Dual Fuel Inverter | Why it matters |
|---|---|---|---|
| Running and starting output | 3,000 running W. 3,500 starting W on gasoline | 3,900 running W. 5,000 starting W on gasoline | The published output matters only when the room, surface or workload needs the extra headroom. It does not prove better results by itself. |
| Fuel and voltage | gasoline. 120V output | gasoline, propane. 120V output | This can be a hard compatibility check for the available supply, connection and intended load. |
| Power quality and handling | Inverter generator. Clean-power requirement met | Inverter generator. Clean-power requirement met | Both records show the same result for “Power quality and handling”, so this row does not separate them. |
What you give up
What matters in practice
Westinghouse provides 900 more running watts.
Only Westinghouse supports propane and remote start.
Both are enclosed 120V inverters with electric start.
What the facts say
Useful conclusions from the current generator sets comparison, followed by the checked facts used to reach them.
Only 6 of 24 models checked match every need here: “Keep a refrigerator and essential lights on”, “Run laptops and sensitive electronics”, and “Run a sump pump during an outage”.
6 matching models from 24 checkedWestinghouse iGen5000DFc EFI Dual Fuel Inverter lists 3,900 W for rated running output, 30% above Generac iQ3500 Portable Inverter Generator at 3,000 W.
Match countThe count uses the current product-to-need assignments for “Keep a refrigerator and essential lights on”, “Run laptops and sensitive electronics”, and “Run a sump pump during an outage”. A need with no documented match does not count.
Calculation noteThis uses the named configuration on its primary listed fuel. Output can fall on propane or natural gas. 20 of 24 models have comparable published figures for context.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Generac iQ3500 Portable Inverter Generator |
|
| |
| Westinghouse iGen5000DFc EFI Dual Fuel Inverter |
|
|
Ready to choose?
Open either model on Amazon to check the current price, customer reviews and delivery options.

Run through the night without refueling
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Run a window air conditioner
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