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Champion · Inverter generator

201321

4,500 starting watts and 3,650 running watts with gasoline, propane operation · 22 h. · 64 dB(A).

3,650W running4,500W starting64 dB(A)Gasoline + Propane
Check retailer prices Listed in Champion U.S. catalog

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Affiliate-ready field · no official direct price published

Champion 4500W Dual Fuel Open Frame Inverter
Official product image: Champion

Product decision summary

Researched by · reviewed under the FMG editorial standard · Sep 15, 2026

Trace the evidence · not a hands-on review

Bottom line

Best for specific needs for home essentials & rv power.

Best for: Home essentials & RV power

Running output

3,650W

Fuel / power

Gasoline + Propane

Weight

92.6 lb

Strongest reasons

  • 4,500 starting watts and 3,650 running watts with gasoline, propane operation · 22 h. · 64 dB(A).
  • Multiple fuel choices add outage flexibility.
  • 3,650W of rated running output.

Know before buying

A reliable public price is not currently published. Confirm the delivered total and return terms with the seller.

Best current buying route

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Never run a fuel-burning generator in a home, garage, shed, or other enclosed or partly enclosed space.

Price intelligence Evidence ledger Accessories & manuals

Key specifications

The numbers that drive the decision.

Published values stay labeled, and every usable metric includes class context. Missing data is shown instead of estimated.

Open complete specifications
SpecificationThis model
Running output3,650WHigher than 56% of its class
Peak / starting output4,500WHigher than 52% of its class
Product weight92.6 lbLighter than 45% of its class
Published sound level64 dBAQuieter than 27% of its class
Fuel / power sourceGasoline + PropaneInverter generator
Best current priceCheck current priceSee current offers at Champion

Class comparisons use 177 mid output inverter generators. Runtime figures can use different loads, fuels, or test conditions; confirm the model manual before planning fuel or battery duration.

Product gallery & complete specifications Official imagery, full spec tables, use cases, and source linksView details

Visual spec gallery

The important numbers, at a glance.

01 · Output by fuel

Up to 4,500 starting watts

Gasoline3,650W running

4,500W starting

Propane3,285W running

4,500W starting

02 · Runtime & operation

Manufacturer runtime

22 h.

Operating volume

64 dB(A)

Energy source

Gasoline, Propane (LPG)

4.02 gal. fuel capacity

03 · Size & ownership

92.6 lb.

Unit weight

20.9 in. × 18.3 in. × 19.4 in.

Length × width × height

Warranty
3 Year Warranty
Starting
Electric
Status
Listed in Champion U.S. catalog
04 · Controls & safety

Starting system

Electric

Power system

Inverter output

Protection

CO Shield® · Low-oil shutdown

Electrical

120 · 60Hz

Connection details are included in the full specification table below.

Official product gallery

Product views and Champion infographics.

These manufacturer images may include output comparisons, controls, dimensions, included equipment, and common use cases. Scroll sideways to view the complete official set available for this model.

Champion 201321 product view
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Champion 201321 official gallery image 7
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Complete specifications

Every official field, organized.

The technical fields below come from Champion’s current U.S. model page. Product photos and infographics come from its official gallery. Confirm current documentation and retailer details before purchase.

Outdoor use only. Never operate a fuel-burning generator inside a home, garage, shed, or other enclosed space. CO Shield® is a backup safety feature, not a substitute for correct outdoor placement.

Manufacturer overview

Features Dual Fuel Operate on either gasoline or propane. 4500 starting watts and runs up to 22 hr. on gas or 21 hr. on propane, with 64 dB(A) operation ideal for camping, RVs, or backup power. Electric Start Trust the reliable 224cc Champion engine with battery-included, push-button electric start, It’s up to 50% quieter and 20% lighter than other equally rated traditional generators. Easy Monitoring and Operation Intelligauge with Power Meter tracks voltage, frequency, and run time, plus includes CO Shield® carbon monoxide auto-shutoff system. Clean Power for Sensitive Electronics Safely power devices and appliances in your home or RV with multiple covered outlets, including a regulated 12V automotive-style outlet for on-the-go use. Champion Support Comes with a 3-year limited warranty, FREE lifetime technical support from dedicated experts, and access to a network of service centers across the country. Description The Champion Power Equipment 4500-Watt Dual Fuel Open Frame Inverter Generator with CO Shield® is perfect for camping, tailgating, RV use, or as a reliable backup for home essentials. · Our Quiet Technology reduces noise, while the efficient design minimizes size and w

Specifications

Portable Generator Technology
Dual Fuel, CO Shield®, ParaLINK®
Gasoline Starting Watts
4500W
Gasoline Running Watts
3650W
Propane Starting Watts
4500W
Propane Running Watts
3285W
Gasoline Starting Amps at 120V
37.5A
Gasoline Running Amps at 120V
30.4A
Propane Starting Amps at 120V
37.5A
Propane Running Amps at 120V
27.4A
Volts
120
Frequency
60Hz
AC Receptacles
(1) 120V 30A RV (TT-30R), (1) 120V 20A Duplex (5-20R), Parallel Ports
DC Operation
Yes
DC Receptacles
(1) 12V 8A (Regulated Automotive)
GFCI Receptacles
No
Covered Receptacles
Yes
Gasoline Run Time at 1/4 Load
22 h.
Propane Run Time at 1/4 Load
21 h.
Noise Level
64 dB(A)
Inverter
Open Frame
Parallel Capability
Yes
Voltmeter
Intelligauge with Power Meter
Battery
Yes
Start Type
Electric
Engine Brand
Champion
Engine Size
224cc
Engine Type
4-stroke
Engine Speed
Variable
Fuel Type
Gasoline, Propane (LPG)
Fuel Gauge
Mechanical
Gasoline Capacity
4.02 gal.
Gasoline Tank Material
Steel
Engine Oil Type
10W-30
Engine Oil Capacity
0.6 qt.
Engine Oil Included
Yes
Low Oil Shut-Off
Yes
Wheels
No
PGMA Compliant
G300-2023
EPA Certified
Yes

Measurements

Length
20.9 in.
Width
18.3 in.
Height
19.4 in.
Weight
92.6 lb.

Best-fit uses

  • Home essentials
  • RV power
  • Tools and outdoor projects

Standout features

  • Dual-fuel flexibility
  • Clean inverter power
  • Dual Fuel, CO Shield®, ParaLINK®
  • Electric start
  • Parallel capable
  • 3 Year Warranty

Compare it with your actual load.

Run your essentials through our independent wattage calculator before buying.

Check my power plan
Official sources:Champion product pageEnglish manualAll Champion generatorsVerified September 15, 2026

Price & Availability

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Price and delivered cost

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Stock and freshness

Current, low-stock, preorder, and stale records are scored differently.

Purchase protections

Published return and warranty terms improve evidence confidence.

Affiliate-neutral ranking

Commission status is recorded but never adds ranking points.

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Save it to your shortlist to retain the current price snapshot and turn price and safety watches on or off.

Best current buying route

Champion 201321

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Seller options

1

0 with price

Offer rank

22/100

Relative to listed sellers

Data confidence

30%

5 open fields

Delivered totals

0/1

Shipping included

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Seller data checked Sep 15, 2026.

Shipping not yet verified.

Open fields: current price, confirmed stock, delivered cost, return window, warranty term.

Prices, local stock, shipping, taxes, installation, and seller terms can change. Confirm the exact model and final checkout total before buying. Affiliate disclosure.

Seller comparison

Every verified exact-model destination.

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Returns
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Warranty
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30% data confidence · checked Sep 15, 2026

Price history

A durable record, starting with verified snapshots.

We preserve each dated seller observation instead of replacing the old number. Trends use the lowest verified listed price on each observation date—not an estimated market price.

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Ownership

What living with it looks like.

Ownership requires a safe fuel plan, hour-based engine service, correct storage, and confidence that parts and support are accessible.

Ownership rule

Use the exact Champion 201321 manual for maintenance intervals, fluids, storage limits, and warranty requirements. Similar models are not interchangeable.

Open owner’s manual Manufacturer support

Published warranty

3 Year Warranty

Coverage can vary by use, seller, and region. Confirm eligibility and exclusions before purchase.

Service information

2 official resources

An owner or operator manual is linked below for exact service intervals.

Routine upkeep

Engine service required

Oil, filters, spark plug, fuel system, and starting battery needs vary by model and hours used.

Handling & storage

92.6 lb · Gasoline + Propane

Store dry, fully cooled, and away from ignition sources; follow the manual’s fuel-storage procedure.

Practical care plan

From delivery to long-term readiness

  1. 1

    Day one

    Register and record the exact unit

    Save the receipt, serial number, seller, warranty terms, and model-specific manual before packaging is discarded.

  2. 2

    Before first load

    Complete setup and break-in correctly

    Add the specified oil, inspect the fuel system, position the generator outdoors, and follow the exact break-in and first-service instructions in the manual.

  3. 3

    Before every use

    Check the safety-critical basics

    Check oil level, leaks, cords, outlets, grounding instructions, CO-safe placement, and the transfer equipment needed for any building connection.

  4. 4

    By hours and season

    Log service and keep it outage-ready

    Track running hours and perform oil, filter, spark-plug, fuel-system, and starting-battery service at the intervals published for this exact model.

Before you buy

Five ownership questions to settle first

  • Confirm that 3 Year Warranty applies to your seller, region, and intended use.
  • Open the official manual for 201321 and review setup, service intervals, warnings, and storage requirements.
  • Verify access to Champion parts, authorized service, and a practical return path in your area.
  • Plan approved fuel storage, outdoor operating clearance, weather protection, and safe refueling.
  • Confirm the unit, fuel or charging gear, and essential cords fit the intended storage and transport space.
Manuals and compatible accessories Compare seller protections

Evidence

See the proof behind the conclusion.

We separate sourced facts, reproducible calculations, editorial judgments, and missing evidence. That makes every important claim easier to inspect—and harder to overstate.

Published-data coverage

88%documented

7 of 8 relevant evidence fields are documented for this model.

Source-backed editorial analysis—not a hands-on or laboratory test.

Read our evidence standard Explore original market research

Source record

3 traceable sources

Last reviewed Sep 15, 2026

Hands-on testing

Checking ledger…

No manufacturer data is presented as an independent test

Verified owners

Checking reports…

Percentages stay hidden until the sample qualifies

CPSC screening

No model-text match

39 generator recall records screened

88%

Documented fields

3

Traceable sources

3

Reproducible calculations

1

Open evidence gaps

Original calculation

Published surge reserve

850W

4,500W peak − 3,650W running

23.29% above rated running output. This is arithmetic headroom, not a promise that every motor load will start.

Original calculation

Rated power density

39.42 running W/lb

3,650W ÷ 92.6 lb

A catalog-derived portability ratio. It does not account for handles, wheels, shape, or how the weight feels in use.

Original calculation

Strongest class-relative spec

56th percentile

Running output: 3,650W ranked within 177 mid output inverter generators

Higher than 56% of its class

Claim-by-claim evidence ledger

Evidence typeClaimBasisTrace
Published factSource-backed3,650W running and 4,500W peak output are recorded for this model.Model-specific output fields in the catalog.Official model source
Published factSource-backedGasoline + Propane power and 92.6 lb product weight are recorded.Published configuration and dimensional data.Official model source
Original calculationReproduciblePublished surge reserve: 850W.4,500W peak − 3,650W runningCalculation standard
Original calculationReproducibleRated power density: 39.42 running W/lb.3,650W ÷ 92.6 lbCalculation standard
Original calculationReproducibleStrongest class-relative spec: 56th percentile.Running output: 3,650W ranked within 177 mid output inverter generatorsCalculation standard
Editorial judgmentEditorialBest for specific needs for home essentials & rv power.Class score 53/100, declared best use, comparative specifications, and explicit buying cautions.Inspect the score
Editorial judgmentEditorialA reliable public price is not currently published. Confirm the delivered total and return terms with the seller.Editorial risk check based on product category, weight, output, price availability, and missing fields.Judgment standard
Open evidence gapCautionPublished price is not sufficiently documented in the current record.The field remains unknown rather than being inferred from a related model or marketing language.Not available

What this evidence cannot prove

  • No Find My Generator hands-on test, instrumented load test, teardown, or long-term ownership trial is claimed for this page.
  • Manufacturer specifications may use different fuels, loads, test distances, temperatures, or operating modes. Cross-brand comparisons inherit those differences.
  • A reliable public price was not available, so price-efficiency analysis is excluded.
  • Published price is missing and receives no invented or estimated value.

Editorial analysis for Champion 201321. Source record last verified Sep 15, 2026. Corrections can be submitted through the contact page with a model-specific source.

Ownership resources

Accessories, manuals, and documents.

Start with the exact Champion 201321 model or item number. Accessory families can look alike while using different connectors, electrical limits, engines, or mounting points.

Compatible accessories

Match by model and connection.

Verify exact fit

Generator power cord or inlet connection

Use a correctly rated cord or professionally selected inlet connection for the intended load.

Match voltage, amperage, blade pattern, and wire rating to TT-30R. Home connections require approved transfer equipment and qualified installation.
View official accessory options
Verify exact fit

Parallel kit

This model’s published information references parallel operation. Use the manufacturer’s matching kit and pairing rules.

Confirm that the kit explicitly names 201321 or its exact generator family before connecting another unit.
View official accessory options
Verify exact fit

Maintenance kit and service parts

Model-matched filters, spark plugs, batteries, oil supplies, and service parts support scheduled maintenance.

Match the complete 201321 model or item number and follow the maintenance table in its manual.
View official accessory options
Verify exact fit

Storage cover or approved running shelter

A fitted storage cover protects a cooled, stored generator. A running shelter must be designed for generator operation.

Never run a fuel-burning generator indoors or inside a storage cover. Follow the manual’s clearance and ventilation requirements.
View official accessory options

Manuals & PDFs

Official product materials.

Owner’s or operator’s manualPDFOperating, safety, maintenance, and troubleshooting instructions for 201321.Official product pageProduct pageCurrent manufacturer overview, notices, specifications, downloads, and support links.

Compatibility note: Links lead to manufacturer or official retailer resources. Confirm the full model or item number, connector type, voltage, amperage, and published compatibility list before buying. Installation involving a home panel, inlet, transfer switch, or fuel plumbing should be handled as required by local code.

Deeper analysis

Open the details you need

The key decision is above. These supporting scorecards, owner signals, and evidence notes stay out of the way until you want to inspect them.

Fit and score detailsSee the class benchmarks and personalize the fit score for your needs.

Find My Generator score

53/ 100

Best for specific needs

Compared with 177 mid output inverter generators in the current catalog.

Power54

Running and peak output versus the class

Portability45

Lower weight scores higher

Quietness27

Lower published dBA scores higher

Fuel flexibility90

Multiple fuel choices

Class comparison

See what each spec really means.

A number is more useful with context. Each row shows this model beside its class median and translates the difference into a percentile.

Running output

Higher than 56% of its class

This model · 3,650W
Median · 3,500W

Peak output

Higher than 52% of its class

This model · 4,500W
Median · 4,500W

Product weight

Lighter than 45% of its class

This model · 92.6 lb
Median · 91 lb

Published sound level

Quieter than 27% of its class

This model · 64 dBA
Median · 62 dBA

How the score works: Scores use published specs and are relative to comparable products in this catalog. Missing specs are excluded and remaining weights are normalized. Runtime is the longest manufacturer-published figure and may use a different load or fuel than another model.

Size a generator for your own appliances

Starter Fit Score

89/ 100

Strong fit

For a 3,000W target and a $1,500 budget.

Clears your critical profile limits

Why it scored this way

A score you can inspect and change.

This personal score is separate from the model’s class score. It measures fit against your priorities and gives neutral partial credit when price or noise data is missing.

Power fit

35/35

Clears your 3,000W running target.

Budget fit

11/20

Price is not published; confirm the current offer.

Fuel fit

15/15

Gasoline + Propane works with your flexible fuel preference.

Portability

10/10

92.6 lb against your medium portability priority.

Noise fit

8/10

64 dBA against your medium quietness priority.

Use-case fit

10/10

Home-backup fit rewards adequate output and fuel flexibility.

Tune my profile
Testing, reviews and evidenceCheck hands-on testing status, owner reliability signals, sources, and data confidence.
Checking the hands-on test ledger…

Testing protocol

The methods behind every result.

This category-specific protocol defines the questions, equipment, conditions, outputs, and safety gates required for this exact model. Published specifications stay visibly separate from hands-on measurements.

Open the hands-on test ledger Read the full test protocol Download measurement worksheet

Manufacturer-published baselines

Rated running output

3,650W

Published

Peak / starting output

4,500W

Published

Product weight

92.6 lb

Published

Published sound level

64 dBA

Published

These numbers organize the test plan. They are not independent confirmations.

Model-specific test matrix

Questions the measurements must answer.

01

Planned measurement

Continuous output & regulation

Pending

Can 201321 hold useful loads without unacceptable voltage or frequency drift?

After manufacturer-specified warm-up, apply a correctly rated resistive load bank at 25%, 50%, 75%, and 100% of rated running output. Hold each step for a defined interval and continuously log watts, volts, frequency, and protective events.

Sustained wattsVoltage rangeFrequency rangeFaults or shutdowns
02

Planned measurement

Starting-load response

Pending

How much voltage and frequency sag occurs during a repeatable stepped starting load?

Use a controlled, instrumented starting-load fixture within published limits. Repeat the same step three times and record the lowest voltage, lowest frequency, recovery time, and whether protection trips.

Peak delivered wattsVoltage sagFrequency sagRecovery time
03

Planned measurement

Fuel use & runtime

Pending

How much usable energy is produced from a measured fuel quantity?

Outdoors at a controlled load, record the starting and ending fuel mass or volume using a safe approved method. Log elapsed time and delivered watt-hours without refueling during the valid measurement window.

Runtime at stated loadFuel per hourkWh per unit of fuelTest fuel and mode
04

Planned measurement

Sound profile

Pending

How loud is the unit under repeatable operating loads?

At an open outdoor site, measure A-weighted sound with a calibrated meter at 7 m / 23 ft on four sides at idle or eco, 25%, 50%, and 75% load. Publish distance, meter response, wind, surface, and ambient level.

dBA by side and loadAmbient dBADistanceOperating mode
05

Planned measurement

Cold & hot starting

Pending

How consistently does the unit start under documented conditions?

Follow the manual exactly and record three ambient-temperature starts plus three heat-soaked restarts. Report attempts, elapsed time, start method, battery state, and any intervention.

Attempts per startStart timeAmbient temperatureStart method

Controlled conditions

  • Record the exact model, serial number, firmware, sample source, and test date before any measurement.
  • Log ambient temperature, humidity, elevation, wind, surface, and background sound for every test block.
  • Record instrument model, range, accuracy, and most recent calibration or verification date.
  • Repeat timing, starting, and sound measurements three times when conditions allow; publish every valid run.
  • Keep original notes, load logs, meter exports, photos, and any excluded-run explanation with the result.

Required equipment class

  • Rated resistive or programmable load bank
  • True-RMS power, voltage, and frequency logger
  • Calibrated Class 1 or Class 2 sound-level meter
  • Approved fuel-measurement equipment and fire protection
  • Weather meter, timer, tachometer, and non-contact thermometer

Safety gate

Operate fuel-burning equipment outdoors only, far from occupied structures, openings, and ignition hazards, with working carbon-monoxide monitoring for personnel.

Testing is for qualified personnel using correctly rated load equipment and the manufacturer’s required grounding, bonding, clearance, and protective-device instructions.

Never connect a generator directly to building wiring or bypass overload, temperature, battery, GFCI, or carbon-monoxide shutdown protection.

Stop a run for unstable voltage or frequency, overheating, fuel or electrolyte leakage, abnormal sound, damaged wiring, or any manufacturer fault indication.

Badge rule: this product receives no “FMG Tested” label or score benefit until a real unit, instruments, conditions, valid runs, raw records, and limitations are documented under the public protocol.

Verified owner reliability

What happens after the honeymoon period?

Long-term reports from confirmed owners show starting, maintenance, failure, support, and recommendation outcomes for the Champion 201321.

See how ownership is verified

Verified owners only

Be the first confirmed owner to report back.

Checking reports…

Reliability percentages stay hidden until at least 5 ownership-verified reports are published for this exact model — 5 more needed.

Ownership checked

Purchase or registration evidence is reviewed privately.

Time in service

Reports separate new ownership from 12+ month experience.

Failures documented

Repairs and maintenance are captured, not buried in a star.

Reports stay private while ownership and model details are checked. Contact information is never shown publicly.

Data trust & safety

Fresh specifications. Visible recall checks.

We show when this record was verified, where its specifications came from, and whether its model number appears in the official CPSC generator-recall dataset.

Review soon

Specification freshness

Last verified
Sep 15, 2026
Review target
Oct 15, 2026
Primary source
Manufacturer / official listing

Prices can change faster than technical specifications. Always confirm the current price, exact model number, and manual before purchase.

CPSC model screening

No model-number match found

39 records checked
The Champion 201321 model text did not match the generator recall records in our current CPSC snapshot. This is a screening result, not a guarantee or safety certification. Recalls can be serial-number specific, newly published, or use a different product description.
Search CPSC directly Dataset checked Sep 16, 2026

Research owner

Founder & lead researcher

Editorial sign-off

Find My Generator Editorial Review

Accountable editor: Andrew Petla

Review scope: exact model identity, published specifications, calculation inputs, source quality, safety language, and affiliate independence. This is an internal editorial review, not third-party engineering, electrical, or safety certification. Hands-on testing is claimed only when a complete test record is published.Request a correction.
Read the full data methodology

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