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Westinghouse 4500 Peak Watt Electric Start Dual Fuel Portable Inverter Generator with RV Outlet vs Generac iQ3800 Dual Fuel Inverter Generator

Buy the Westinghouse iGen4500DF if you need more running watts, a 30A RV outlet, or remote start. Buy the Generac iQ3800 if carbon monoxide safety and lighter weight matter more than output. The Westinghouse has the higher owner rating and more reviews; the Generac adds COsense shutoff and a smaller, lighter case. Both deliver clean inverter power under 3% THD, so sensitive electronics are safe on either.

  • Choose the Westinghouse iGen4500DF if you want the most running watts for the size, a built-in TT-30R RV outlet, and remote start from inside your RV or tent.
  • Choose the Generac iQ3800 if you want a lighter unit with a carbon monoxide shutoff sensor and a clear LED readout of output and fuel use.

Prices

  • Westinghouse 4500 Peak Watt Electric Start Dual Fuel Portable Inverter Generator with RV Outlet: $649.30 at Crenvu (last seen Nov 9)
  • Generac iQ3800 Dual Fuel Inverter Generator: $849.00 at Lowe's (checked today)
  • Difference: the Westinghouse 4500 Peak Watt Electric Start Dual Fuel Portable Inverter Generator with RV Outlet is $199.70 cheaper than the Generac iQ3800 Dual Fuel Inverter Generator at the latest prices (Nov 9 and Nov 10)
Westinghouse
Westinghouse 4500 Peak Watt Electric Start Dual Fuel Portable Inverter Generator with RV Outlet

Westinghouse 4500 Peak Watt Electric Start Dual Fuel Portable Inverter Generator with RV Outlet

4.7(8,745 ratings)
$649.30at CrenvuChecked 23 h ago
See all prices and details
Visit Crenvu
Pros
  • More running and peak watts than the Generac
  • RV-ready 30A outlet plus two household outlets and USB
  • Remote start, electric start, and recoil backup
  • High owner rating from a large review base
  • Wheels and suitcase handle make it movable despite the weight
Cons
  • No carbon monoxide shutoff sensor
  • Heavier at roughly 126 lb
  • No fuel gauge reading on propane
Generac
Generac iQ3800 Duel Fuel Inverter Generator

Generac iQ3800 Dual Fuel Inverter Generator

Generac iQ3800 Duel Fuel Inverter Generator

4.3(396 ratings)
$849.00at Lowe'sChecked 9 h ago
See all prices and details
Visit Lowe's

Store links may earn us a commission. Price via Klarna.

Pros
  • COsense carbon monoxide shutoff is a real safety edge
  • Lighter at 107 lb with never-flat wheels
  • Auto-choke electric start with battery included
  • LED display shows power output and gas consumption
  • Runs on a standard 20 lb propane tank for longer run time
Cons
  • Lower output: 3000 running watts on gas
  • No 30A RV outlet
  • Fewer owner reviews and a lower average rating

What separates them

Westinghouse 4500 Peak Watt Electric Start Dual Fuel Portable Inverter Generator with RV OutletGenerac iQ3800 Dual Fuel Inverter Generator
Running watts3900 W on gas, 4500 peak3000 W on gas, 3800 peak
RV outletBuilt-in TT-30R 30A outletNo 30A RV outlet; 120V household outlets only
Carbon monoxide safetyNo CO sensorCOsense shuts the engine down at unsafe CO levels
StartingElectric, recoil, and wireless remote startElectric with auto-choke and recoil; no remote
WeightAbout 126 lb shipping weight107 lb
Noise52 dBAFully enclosed case for quiet running; no figure given
Run timeUp to 18 hours on gas at light load13 hours on gas, 16 on a 20 lb propane tank at 50% load
DisplayRotating LED data centerLED display shows output and gas fuel use

Price history

$849.00$649.30
Nov 3Nov 10
  • Westinghouse 4500 Peak Watt Electric Start Dual Fuel Portable Inverter Generator with RV Outlet: lowest $649.30 on Nov 9 at Crenvu.
  • Generac iQ3800 Dual Fuel Inverter Generator: lowest $849.00 on Nov 3 at Walmart; $849.00 on Nov 10.

Prices at every store

Westinghouse 4500 Peak Watt Electric Start Dual Fuel Portable Inverter Generator with RV Outlet

  • CrenvuNew

    In stock

    $649.30Free shippingChecked 23 h ago
    Visit Crenvu
  • Sam's ClubNew

    In stock

    $849.00Free shippingChecked 23 h ago
    Visit Sam's Club
  • WalmartNew

    In stockSold by Westinghouse Outdoor PowerReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $949.00Free shippingChecked 21 h ago
    Visit Walmart
  • Norwall PowerSystemsNew

    In stock

    $959.65Free shippingChecked 23 h ago
    Visit Norwall PowerSystems

Store links may earn us a commission. Some prices via Klarna.

All 8 stores and price history →

Generac iQ3800 Dual Fuel Inverter Generator

  • Blain's Farm & FleetNew

    In stock

    $849.00Checked 9 h ago
    Visit Blain's Farm & Fleet
  • Lowe'sNew

    In stock

    $849.00Free shippingChecked 9 h ago
    Visit Lowe's
  • FactoryPureNew

    In stock

    $928.00Free shippingChecked 23 h ago
    Visit FactoryPure
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $849.00Checked 23 h ago
    Visit Amazon

Also available at

  • WalmartCheck price at Walmart

Store links may earn us a commission. Some prices via Klarna.

All 21 stores and price history →

Specs compared

SpecWestinghouse 4500 Peak Watt Electric Start Dual Fuel Portable Inverter Generator with RV OutletGenerac iQ3800 Dual Fuel Inverter Generator
colorBlueOrange
sizeiGen4500DF3800W
CO SensorNoYes (COsense® Technology)
Low Oil ShutdownYesYes
Overload ProtectionYesHelps you to avoid overloading (via LED display)
Automatic Shut OffAutomatic low oil shutdownSTOPS (COsense® Technology)
Fuel TypePropaneDual Fuel, Gasoline
Fuel Capacity3.4 gallon (gas tank)3.2 gal
Fuel GaugeYesYes (for the gasoline tank), No (for propane)
Continuous Output3900 W (Gas)3000 W
Power Output4500 Watt3800 W (Starting Watts)
Voltage120V120-volt
Show all 40 specsShow fewer specs
SpecWestinghouse 4500 Peak Watt Electric Start Dual Fuel Portable Inverter Generator with RV OutletGenerac iQ3800 Dual Fuel Inverter Generator
Peak Output5000 W (Gas)3800 W
Starting MethodRecoil, Electric, RemoteElectric Start / Recoil Pull Start
Frequency60 Hz60Hz (target)
Weight126.5 lb (57.4 kg) (Shipping Weight)107
Depth29.6 in (Packaging Dimensions)24.6 in
Height24.3 in (Packaging Dimensions)22.4 in
Width21.5 in (Packaging Dimensions)20.3 in
Connectivity PortsUSB, AC, Parallel, RV outletUSB Ports
Number Of Outlets

What reviewers say

Westinghouse 4500 Peak Watt Electric Start Dual Fuel Portable Inverter Generator with RV Outlet

  • 4.7 / 58,745 ratings

Owners rate it highly, praising quiet operation, easy remote starts and clean power for RVs and electronics. Common complaints are weight, lower output on propane and small fuel-related annoyances.

What people mention
  • NoisePraisedOwners say it is quiet enough for campgrounds and neighbors.
  • WeightCriticisedMany call it very heavy and hard to load solo despite the wheels.
  • Remote startPraisedThe wireless remote starts it reliably from inside an RV or house.
  • Propane outputMixedPropane works well but delivers less power than gasoline.

Generac iQ3800 Dual Fuel Inverter Generator

  • 4.3 / 5396 ratings

Owners of Generac inverter generators generally praise the quiet inverter output and the dual-fuel flexibility, and the CO shutdown is seen as a real safety plus. Complaints tend to center on weight and on the lower output when running on propane.

What people mention
  • WeightCriticisedOwners say 107 lb makes it a two-person lift and awkward to move without wheels.
  • Dual fuelPraisedBuyers like having propane as a fallback when gasoline runs out or is hard to store.
  • Power qualityPraisedUnder 3% THD is cited as safe for laptops, TVs and other sensitive electronics.
  • CO safetyPraised

Questions and answers

Which one runs a 30A RV?
The Westinghouse. It has a built-in TT-30R outlet and enough running watts for most travel-trailer air conditioners and appliances. The Generac has no 30A outlet, so you would need an adapter and it has less headroom.
Is the Generac safer indoors or in a garage?
Neither is safe to run indoors. The Generac's COsense shuts the engine down when carbon monoxide builds up, which adds a layer of protection, but it is still an outdoor-only generator.
Which is quieter?
Westinghouse rates the iGen4500DF at 52 dBA. Generac does not publish a dBA figure for the iQ3800, only that the case is fully enclosed for quiet operation, so the Westinghouse number is the only one you can compare.
Is the Generac worth stepping down in power for?
Yes if you value the CO shutoff, lighter weight, and easier handling more than peak watts. If you need to start a large RV air conditioner or run more loads at once, the Westinghouse is the better fit.
Which lasts longer on a tank?
The Westinghouse claims up to 18 hours on its 3.4-gallon gas tank at light load. The Generac runs 13 hours on gas at 50% load and 16 hours on a 20 lb propane tank, so the Westinghouse lasts longer at low draw.
Do both handle sensitive electronics?
Yes. Both are inverter generators rated under 3% total harmonic distortion, which is clean enough for laptops, TVs, and phones.

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4
5 (120-volt outlets)
Receptacle TypeTT-30R, 5-20RTwist lock (120V, 30-amp)
Wireless ConnectivityWireless (remote start)WiFi, Mobile Link
Inverter TechnologyYesYes
ProtectionOverload protection, Grounding System: Floating…—
Noise Level52 dBA—
Noise Level (dB)52—
Electric StartYes—
Tank Volume (gal)12.8—
Power SourceGasoline—
Output Power (W)4500—
No. of Power Outlets3—
Voltage Outlet2x120 V—
Length (")24.5—
Weight (lb)104.7—
Running Watts—3000 (Gas) / 2700 (LP)
Starting Watts—3800 (Gas) / 3400 (LP)
Rated AC Voltage—120 VAC
Rated AC Frequency—60 Hz
Run Time at 50% Load—13 (Gas) / 16 (LP - 20lb Tank)
The COsense auto shutoff is mentioned as a reassuring feature for indoor-adjacent use.