Generator entity · Inverter (portable)

Champion 201531 Dual Fuel Inverter

Name: Champion 201531 Dual Fuel Inverter
Brand: Champion

Dual-fuel RV-ready inverter: 3,250 W rated / 4,500 W starting on gasoline (2,925/4,500 W on propane), a TT-30R RV receptacle, CO Shield automatic shutdown, <3% THD, and 10 h (gas) / 25 h (20-lb propane) runtimes at 25% load — 23.5 kg.

brand: Champion family: Dual Fuel Inverter (4500W class) fuel: Gasoline + Propane (LPG) confidence: high updated: Jul 8, 2026

Outdoor use only. Fuel-burning generators produce carbon monoxide and must never run indoors, in garages, or near openings — regardless of CO-shutdown features. This unit: automatic co shutdown present (CO Shield). Home-circuit connection requires a proper transfer switch installed by an electrician; never backfeed an outlet. Follow the manufacturer's manual.

Machine summary · generator · champion-201531

brand: Champion
model_name: 201531 (4500W Dual Fuel Inverter with CO Shield)
generator_type: inverter_portable
fuel: gasoline+propane
running_watts: 3250
starting_watts: 4500
voltage: 120V
co_shutdown: present
rv_outlet_present: true
weight_kg: 23.5
confidence_level: high
source_last_checked: 2026-07-08
json_export: /generators/champion-201531.json

Overview

Champion's 201531 is the current recoil-start 4,500 W-class dual-fuel inverter: a 149 cc engine producing 3,250 W rated / 4,500 W starting on gasoline and 2,925 W rated / 4,500 W starting on propane — per-fuel figures from the manual's spec table, stored separately. The panel carries a TT-30R RV receptacle (receptacle evidence, not marketing), a 5-20R duplex, and a regulated 12 V DC outlet. Runtime is quoted at 25% load: up to 10 hours on the 1.54 gal gasoline tank or 25 hours on a 20-lb propane tank. CO Shield monitors carbon monoxide and automatically shuts off the engine, and Champion states PGMA G300-2023 conformance. THD is bounded officially at under 3%. Champion's 64 dBA figure is measured from 23 feet without a stated load basis, so it is stored as basis-unknown and excluded from comparative noise ranking.

Variant note: Related current variants (separate entities, not conflated): 201278/201319 (electric-start dual-fuel inverter), 200978/201321 (open-frame dual-fuel inverter), 201228. Legacy 200986/200988 superseded.

Data note: Selected as the current best-documented 4,500 W-class dual-fuel inverter (successor class to the older 200986, whose manual dates to 2020; the 201531 manual is dated 2025-01). THD stated as an upper bound ('<3% THD') and normalized to 3. Weight is Champion's standard spec-table figure; not explicitly labeled dry, unit ships without oil. pgmaCompliant=true per the manual's PGMA G300-2023 conformance statement. Grounding: neutral floating.

Specifications

Running and starting watts are never collapsed; every runtime figure carries its fuel and load basis; THD is shown only when officially stated numerically. Core values' original claims and sources are in the provenance table. The final group is computed from the fields above and marked as derived.

Output
Attribute	Value
Running (rated) watts	3,250 W
Starting (peak) watts	4,500 W
Running watts by fuel	Gasoline: 3,250 W · Propane (LPG): 2,925 W
Starting watts by fuel	Gasoline: 4,500 W · Propane (LPG): 4,500 W
Voltage	120V
Frequency	60Hz
Total harmonic distortion	≤3%
240V support	No

Fuel & runtime
Attribute	Value
Fuel	Gasoline + Propane (LPG)
Fuel tank (gasoline)	1.54 gal
Runtime — Gasoline, 25% load	10 h
Runtime — Propane (LPG), 25% load	25 h
Fuel notes	Propane runtime (25 h at 25% load) is on a 20-lb tank. Economy Mode included. 2.3 ft LPG hose with regulator included. Noise: 64 dBA measured from 23 ft, load basis not stated by Champion.

Engine & operation
Attribute	Value
Engine displacement	149 cc
Noise	64 dBA (load basis not stated)
Start method	recoil
Parallel capable	Yes
Inverter technology	Yes

Receptacles
Attribute	Value
Receptacles	2 × 5-20R (one duplex (two outlets), 120V 20A), 1 × TT-30R (120V 27.1A RV receptacle), 1 × 12V DC (8A regulated automotive; dual USB-A/USB-C adapter included as accessory)
RV outlet (30A RV receptacle)	Yes
TT-30R present	Yes
L14-30R present	No
GFCI outlets	No
Covered outlets	Yes

Safety & compliance
Attribute	Value
CO shutdown	Automatic CO shutdown present (CO Shield)
Low-oil shutdown	Yes
Overload protection	Yes
EPA certified	Yes
PGMA compliant	Yes

Physical
Attribute	Value
Weight (dry)	23.5 kg (51.8 lb)
Dimensions (L × W × H)	455 × 296 × 500 mm
Wheel kit included	No
Handle	fixed
Type	Inverter (portable) · Enclosed / suitcase

Derived (computed, not sourced)
Attribute	Value
Watts per kg	138.3 W/kg
Portability band	compact

Use cases

RV power via the TT-30R with 3,250 W rated on gasoline
Long weekends off-grid: 25 h at 25% load on a 20-lb propane tank
Sensitive electronics (<3% THD officially bounded)
Parallel operation with another Champion unit (ParaLINK kit sold separately)

Cross-category fit flags (stored for future battery-vs-generator pages, not yet used for ranking): RV suitable · camping suitable · home backup not suitable · apartment use: no · sensitive electronics: high · noise class: unknown.

Strengths and weaknesses

Strengths

TT-30R receptacle plus dual-fuel flexibility in a 23.5 kg suitcase
CO Shield auto-shutoff documented in the manual, with PGMA G300-2023 conformance
Per-fuel watts and runtimes officially published and stored separately
Identical 4,500 W starting rating on both fuels
3-year warranty with lifetime technical support

Weaknesses

Noise figure (64 dBA from 23 ft) lacks a load basis — excluded from comparative noise ranking here
No 50% load runtime published
CARB compliance and CSA/ETL listing not stated officially (stored as null)
Recoil start only in this SKU (electric-start variants exist separately)
120 V only

Comparisons featuring this generator

RV-Ready Generators: WEN DF360iX vs Champion 201531 vs Westinghouse iGen5000DFc vs Firman WT05571 vs Honda EU2200i Companion

Five generators with genuine RV receptacle evidence — a TT-30R (or, for the Honda, a Honda-marketed L5-30R) on the panel, not just 'RV Ready' marketing. They span 1,800–5,500 W running, single- to tri-fuel, and 21.5–59.6 kg, all with documented CO-shutdown.

Where to buy

Merchant links are scaffolded but not yet active. When live, some will be affiliate links; merchant relationships never affect indexed specifications or verdicts.

Official product page: https://www.championpowerequipment.com/product/201531-4500w-dual-fuel-inverter-with-co-shield/
Amazon: link pending — Affiliate link placeholder — not yet active

Sources and provenance

Core specifications — including all safety fields — come from official manufacturer sources only, with the exact claim text preserved per field. Safety-related fields carry the strictest rules: CO-shutdown status is never inferred from marketing. See the methodology for the full policy.

Field-level provenance (17 entries, checked 2026-07-08)
Field	Normalized value	Raw claim	Source	Confidence
`runningWatts`	3250	Watts (Starting/Running) .............................. 4500/3250	Official manual (PDF) — Gasoline figures; page marketing text matches.	high
`startingWatts`	4500	Watts (Starting/Running) .............................. 4500/3250	Official manual (PDF)	high
`runningWattsByFuel`	{"gasoline":3250,"propane":2925}	Watts (LPG) (Starting/Running)........................ 4500/2925	Official manual (PDF) — Page: 'When using a 20-pound propane tank, it produces 4500 starting watts and 2925 running watts'.	high
`startingWattsByFuel`	{"gasoline":4500,"propane":4500}	Watts (LPG) (Starting/Running)........................ 4500/2925	Official manual (PDF) — Propane starting rating equals the gasoline figure per both official sources.	high
`voltage`	120V	Volts AC.......................................................... 120 ... Volts DC .......................................................... 12 ... Frequency ..................................................... 60 Hz	Official manual (PDF)	high
`receptacleSummary`	{"5-20R":2,"TT-30R":1,"12V DC":1}	120V AC, 27.1A RV (NEMA TT-30R) ... (2x) 120V AC, 20A (NEMA 5-20R) ... 12V DC, 8A (Regulated Automotive)	Official manual (PDF) — TT-30R present → rvOutletPresent=true on receptacle evidence. ParaLINK parallel outlets on panel (kit sold separately).	high
`fuelTankCapacityGal`	1.54	Gasoline Capacity . . . 1.54 gal. (5.8 L)	Official manual (PDF)	high
`runtimeAt25LoadHours`	10	When the 1.54-gallon tank of gasoline is full, the 149cc Champion engine produces 4500 starting watts and 3250 running watts and will run for up to 10 hours at 25% load.	Official product page — Load basis explicit. Propane: 'up to 25 hours at 25% load' on a 20-lb tank — stored per-fuel. No 50% figure published.	high
`noiseDb`	{"unknown_basis":64}	With an ultra-quiet 64 dBA from 23 feet, enjoy 4500 starting watts, 3250 running watts and up to 10 hours run time on gasoline	Official product page — Distance stated (23 ft) but LOAD basis not stated — stored as unknown_basis per policy and excluded from comparative noise ranking; noiseClass set to unknown.	medium
`totalHarmonicDistortion`	3	Confidently connect your sensitive electronics since this inverter produces Clean Power (< 3% THD).	Official product page — Upper bound normalized to 3; THD ≤6% → sensitive-electronics suitability high.	high
`coShutdown`	present	CO Shield® technology monitors the accumulation of carbon monoxide (CO)... If CO Shield® detects unsafe elevated levels of CO gas, it automatically shuts off the engine.	Official manual (PDF) — Manual section: 'CO Shield® - Carbon Monoxide (CO) Detection and Auto-shutoff System'.	high
`pgmaCompliant`	true	PGMA G300-2023	Official manual (PDF) — Standard reference recorded here.	high
`weightKg`	23.5	Weight ............................................ 51.8 lb. (23.5 kg)	Official manual (PDF) — Page matches (51.8 lbs). Not explicitly labeled dry; ships without oil.	high
`dimensionsMm`	{"l":455,"w":296,"h":500}	Length ............ 17.9 in. (45.5 cm) / Width ............ 11.7 in. (29.6 cm) / Height............ 19.7 in. (50 cm)	Official manual (PDF) — Champion's own cm values ×10.	high
`engineSizeCc`	149	Displacement ................................................. 149 cc	Official manual (PDF) — Engine model 165FS-C, 4-stroke OHV.	high
`warrantyYears`	3	CHAMPION POWER EQUIPMENT 3 YEAR LIMITED WARRANTY	Official manual (PDF)	high
`parallelCapable`	true	The Champion model 201531 is parallel ready and can be operated in parallel with another Champion unit to increase the total available electrical power. A Champion parallel kit (optional equipment) is required for parallel operation.	Official manual (PDF)	high

All sources used

entity: generator/champion-201531 source_last_checked: 2026-07-08 confidence_level: high methodology: /methodology/