Generator entity · Inverter (portable)

Honda EU2200i Companion

The RV/parallel-oriented EU2200i variant: identical 1,800 W rated / 2,200 W max quiet inverter with CO-MINDER, but with a 30 A L5-30R locking receptacle (adaptor required for RV shore cords) plus a single 5-20R.

brand: Honda family: EU fuel: Gasoline 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-MINDER). Home-circuit connection requires a proper transfer switch installed by an electrician; never backfeed an outlet. Follow the manufacturer's manual.

Machine summary · generator · honda-eu2200i-companion

brand
Honda
model_name
EU2200i Companion
generator_type
inverter_portable
fuel
gasoline
running_watts
1800
starting_watts
2200
voltage
120V
co_shutdown
present
rv_outlet_present
true
weight_kg
21.5
confidence_level
high
source_last_checked
2026-07-08
json_export
/generators/honda-eu2200i-companion.json

Overview

The EU2200i Companion (SKU EU2200ITAN1) shares every powertrain spec with the standard EU2200i — 121 cc GXR120 engine, 1,800 W rated / 2,200 W max, 48–57 dBA with published load bases, 8.1 h at 1/4 load, CO-MINDER automatic CO shutdown — and differs only in its receptacle panel: one 30 A 125 V locking L5-30R (marketed by Honda for RV applications, optional adaptor required) plus one single 5-20R. Important honesty note from Honda's own manual: a single unit still delivers only 1,800 W rated through the 30 A receptacle; drawing more requires a second EU2200i in parallel, which the Companion enables through a simple parallel cord rather than an external kit.

Variant note: Differs from the standard EU2200i ONLY in receptacles (L5-30R + single 5-20R vs 20A duplex). All power/engine/tank/runtime/noise/weight specs identical; both parallel with each other and older EU2000i K1/T1 units.

Revision note: Current revision includes CO-MINDER and Bluetooth monitoring/wireless stop. Pre-CO-MINDER serial ranges exist under an older manual.

Data note: rvOutletPresent=true on receptacle evidence plus Honda's explicit RV marketing of the 30 A outlet — but tt30Present=false (it is an L5-30R twist-lock; adaptor required), exactly the distinction the data policy requires. THD null (qualitative claims only) — sensitive-electronics suitability capped at medium. Honda's Companion page contains leftover 'EU2000i Companion' copy in two feature blurbs; the spec table unambiguously covers EU2200ITAN1. Not for sale in California (current SKU). Earliest serial ranges predate CO-MINDER under an older manual.

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
AttributeValue
Running (rated) watts 1,800 W
Starting (peak) watts 2,200 W
Voltage 120V
Frequency 60Hz
Total harmonic distortion Not numerically stated
240V support No
Fuel & runtime
AttributeValue
Fuel Gasoline
Fuel tank (gasoline) 0.95 gal
Runtime — Gasoline, 25% load 8.1 h
Runtime — Gasoline, rated 3.2 h
Fuel notes Honda: 'Runs 3.2 to 8.1 hours on a single tank, depending on the load.' Eco Throttle System. No 50% load runtime published.
Engine & operation
AttributeValue
Engine displacement 121 cc
Noise 57 dBA (at rated load), 48 dBA (at 1/4 load)
Start method recoil
Parallel capable Yes
Inverter technology Yes
Receptacles
AttributeValue
Receptacles 1 × L5-30R (30A 125V locking; Honda-marketed for RV applications (optional adaptor required). Single unit limited to 1,800 W rated through this outlet; full 30 A capability requires parallel operation per the manual.), 1 × 5-20R (single 20A 125V receptacle. No DC/USB output.)
RV outlet (30A RV receptacle) Yes
TT-30R present No
L14-30R present No
Safety & compliance
AttributeValue
CO shutdown Automatic CO shutdown present (CO-MINDER)
Low-oil shutdown Yes
Overload protection Yes
EPA certified Yes
CARB compliant No
Physical
AttributeValue
Weight (dry) 21.5 kg (47.4 lb)
Dimensions (L × W × H) 509 × 290 × 425 mm
Type Inverter (portable) · Enclosed / suitcase
Derived (computed, not sourced)
AttributeValue
Watts per kg 83.7 W/kg
Portability band compact

Use cases

  • RV device power via the Honda-marketed 30 A receptacle (adaptor required; single unit limited to 1,800 W)
  • Paired parallel setups: Companion + standard EU2200i to 4,400 W through one 30 A outlet
  • Quiet camping at 48 dBA (1/4 load)
  • Tailgating and outdoor events

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: medium · noise class: very_quiet.

Strengths and weaknesses

Strengths

  • CO-MINDER automatic CO shutdown, explicitly documented
  • 30 A receptacle enables simple-cord parallel operation instead of an external kit
  • Noise and runtime published with explicit load bases
  • 21.5 kg suitcase form
  • 3-year residential warranty

Weaknesses

  • The 30 A outlet is an L5-30R, not a TT-30R — RV shore cords need an optional adaptor
  • A single unit cannot exceed 1,800 W rated regardless of the 30 A receptacle
  • No numeric THD published
  • Current SKU not for sale in California
  • Costs more than the standard EU2200i for the same power

Comparisons featuring this generator

Compact Quiet Inverter Generators: Honda EU2200i vs EU2200i Companion vs WEN 56235iX vs Generac iQ3500

Four sub-3,500 W 120 V inverter generators built for quiet recreation, camping, and light backup — all with documented CO-shutdown. They separate on output (1,800–3,000 W running), noise basis (Honda and WEN publish load-based dBA; Generac publishes none), documented THD (only WEN gives a number), weight (17.7–49.5 kg), and receptacle panel.

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.

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 (19 entries, checked 2026-07-08)
FieldNormalized valueRaw claimSourceConfidence
runningWatts 1800 AC Output: 120V 2200W max. (18.3A) , 1800W rated (15A) Official spec page — Manual (covers both types): 'Rated output 1.8 kVA'. high
startingWatts 2200 AC Output: 120V 2200W max. (18.3A) , 1800W rated (15A) Official spec page — Manual: 'Maximum output 2.2 kVA'. high
voltage 120V Rated voltage 120 V; Rated frequency 60 Hz; Rated current 15 A Official manual (PDF) — 120 V only; no 240 V support. high
receptacleSummary {"L5-30R":1,"5-20R":1} Receptacles: 30A 125V Locking Plug, 20A 125 V receptacle Official spec page — Manual wiring diagram: 'CIRCUIT PROTECTOR (30A)', 'L5-30R', '5-20R'; manual text: '30 A twist lock receptacle' / 'L5-30P PLUG'. high
rvOutletPresent true The EU2200i Companion offers one 30A receptacle for RV applications (requires optional adaptor) and one 20A receptacle. Official product page — Honda-marketed 30 A RV receptacle; L5-30R form (not TT-30R), so tt30Present=false and an adaptor is required — per the receptacle-evidence rule. high
fuelTankCapacityGal 0.95 Fuel Tank Capacity: .95 gal. Official spec page — Manual: '0.95 US gal (3.6 L)'. high
runtimeAt25LoadHours 8.1 Run Time per Tankful: 3.2hr @ rated load / 8.1 hrs @ 1/4 load Official spec page — No 50% figure published; rated-load figure stored under its own basis. high
noiseDb {"rated":57,"quarter_load":48} Noise Level: 57 dB(A) @ rated load 48 dB(A) @ 1/4 load Official spec page — A feature blurb misnames 'EU2000i Companion' — legacy copy; the spec table is for EU2200ITAN1. high
coShutdown present CO-MINDER continuously monitors carbon monoxide (CO) levels. It automatically shuts down the generator before detected CO levels near the generator become dangerously high. Official product page — Manual: 'CO-MINDER is a system that automatically stops the engine...' — automatic shutoff explicitly described. high
weightKg 21.5 Dry mass [weight]: 47.4 lbs (21.5 kg) Official manual (PDF) — Manual spec row covers both EU2200iT types jointly. high
dimensionsMm {"l":509,"w":290,"h":425} Length 20.0 in (509 mm), Width 11.4 in (290 mm), Height 16.7 in (425 mm) Official manual (PDF) — Honda's official mm values used. high
engineSizeCc 121 Engine model GXR120T ... Displacement 7.38 cu-in (121 cm3) Official manual (PDF) high
warrantyYears 3 Residential Warranty: 3 Years; Commercial Warranty: 12 months; Optional Extended: Up to 36 months Official spec page — Residential basis recorded. high
parallelCapable true Connect the EU2200i Companion with a regular EU2200i for up to 4400 watts of power. The EU2200i Companion will also parallel with EU2000iK1/T1 models. Official product page — Via the 30 A receptacle a simple parallel cord suffices per Honda. high
carbCompliant false CA Compliant: Not for sale in California Official spec page — Current EU2200ITAN1 SKU. high
epaCertified true Your new Honda Power Equipment engine complies with the U.S. EPA, Environment Canada, and State of California (models certified for sale in California only) emission regulations. Official manual (PDF) high
lowOilShutdown true Protected by Oil Alert. Protects the generator by shutting the engine off when low oil is detected. Official product page high
overloadProtection true Electronic Circuit Breaker. Protects the generator from an overload condition. Official product page — Separate 30 A and 20 A circuit protectors per the manual diagram. high
totalHarmonicDistortion stable, clean power Official product page — No numeric THD published — null per policy. high

All sources used

entity: generator/honda-eu2200i-companion source_last_checked: 2026-07-08 confidence_level: high methodology: /methodology/