Best Inverter Generators for Home Backup: Spec-by-Spec Comparison

Updated Oct 17, 2026 · How we compare

How we chose and compared

• Scope: inverter generators sold for home backup in the U.S., from a 1,800 W suitcase unit up to 9,000 W 120/240V units. We favored models with published spec sheets and at least one independent published review.
• Specs come from each manufacturer's own product page.
• Review findings are summarized in our own words from named publications (Popular Mechanics, Bob Vila, Consumer Reports), with links. We don't reproduce their scores, and we don't use retailer star ratings or customer review quotes.

Spec table: all six side by side

Brands measure noise at different distances and loads, so compare dB figures loosely.

What the specs reveal (our analysis)

Weight: the 9,000 W inverters are lighter than the Honda

The 9,000 W DuroMax and Westinghouse make about 1.6× the Honda EU7000iS's power at 47–74 lb less (216 and 189 lb vs 263.2 lb).[1][2][3] Any of these big units needs a level path to its outdoor spot: Popular Mechanics' reviewer needed three people to get the 263-lb Honda down a truck ramp, though it rolled easily on flat ground.[8]

Propane penalty: 5% to 10%, and natural gas costs about 19%

• DuroMax XP11000iH: 8,550 vs 9,000 W on gasoline (−5%).[2]
• Westinghouse iGen12000DFc: 8,100 vs 9,000 W (−10%).[3]
• Champion 201176: propane 6,525 vs 7,250 W (−10%); natural gas 5,875 W (−19%).[4]
• Champion 201319: 3,150 vs 3,500 W (−10%).[5]

If propane will be your main fuel, the DuroMax keeps the most of its rating. The trade-off is that DuroMax recommends at least a 40-lb cylinder,[2] while Westinghouse publishes run times on a standard 20-lb grill tank (9 hours at 25% load).[3]

240V is the dividing line

Consumer Reports makes the same split: its "large" inverter category (5,000 W and up, 240V-capable) can connect to a panel through a transfer switch or interlock to run hardwired loads such as a well pump or water heater. Mid-size 120V inverters cannot.[9] Four of our six models are 120/240V; the Champion 201319 and Honda EU2200i are 120V only.

Model-by-model: specs plus what reviewers found

1. DuroMax XP11000iH: best all-round 240V backup (dual fuel)

Specs: 9,000 / 11,000 W gasoline, 8,550 / 10,450 W propane, 120/240V 30A and 50A outlets, <3% THD, 61 dB at 25% load, 7.1-gal tank (18 h at 25%), 216 lb dry, CO Alert, 5-year warranty.[2]

What reviewers found: Bob Vila's team named it best overall among the 11 inverters it tested (published Jan 21, 2026). They reported it handled large appliances and several power tools while giving stable power to electronics, and that at light load it was quiet enough to talk over normally. They praised the easy switch to propane. Their downside was size: they did not consider it portable in the usual sense (Bob Vila lists it at 226 lb; DuroMax gives 216 lb dry).[7]

Fits: 240V homes that want the most running watts on either fuel. On propane, plan for a 40-lb or larger cylinder.

Backup Power

DuroMax XP11000iH

Best for: All-round 240V home backup on gas or propane, with the smallest propane drop on our list.

• Running W (gas)9,000 W
• Running W (propane)8,550 W
• Voltage120/240V
• Dry weight216 lb
• Run time at 25%18 h (7.1 gal)

Check price at DuroMaxCheck price at AmazonCheck price at Lowe's

2. Honda EU7000iS: quietest 240V option with the most review evidence (gas only)

Specs: 5,500 rated / 7,000 max W, 120/240V, fuel injection, 5.1-gal tank (6.4 h at rated load, 16 h at 1/4), 52–58 dB(A), 263.2 lb, CO-MINDER, parallel-capable with a kit, Bluetooth app.[1]

What reviewers found: Popular Mechanics' reviewer (Aug 17, 2026) was most impressed by how quiet it was. They measured about 70 dB with a phone app from roughly 15 feet at around 60% load, and it ran a 10-inch table saw without trouble even in Eco Throttle mode. They also liked the build quality, wheels, and app. Their main criticism was gasoline-only operation; the review notes Honda makes no dual- or tri-fuel model.[8]

Fits: buyers who put noise and build quality first and can store stabilized gasoline. Its 5,500 W rating is lower than the 9,000 W-class units.

Backup Power

Honda EU7000iS

Best for: Buyers who put low noise and build quality first and can store stabilized gasoline.

• Running W (gas)5,500 W
• Voltage120/240V
• Noise52-58 dB(A)
• Dry weight263.2 lb
• Run time at 1/4 load16 h (5.1 gal)

California (CARB) version: EU7000iSNAC1 (the Amazon link is this version)

Check price at HondaCheck price at AmazonCheck price at Home DepotCheck price at Lowe's

3. Champion 201176 tri-fuel: for homes with a natural-gas line

Specs: 9,000 W starting on all fuels; 7,250 / 6,525 / 5,875 running W on gasoline / propane / natural gas; 120/240V with L14-30R and 14-50R; open-frame inverter; 72 dBA from 23 ft; 4.32-gal tank (14 h at 1/4 load); 165.8 lb; CO Shield; not parallel-capable.[4]

What reviewers found: Bob Vila picked it as best tri-fuel. Its testers valued the fuel flexibility for long outages and found it quieter than conventional generators but not as quiet as the enclosed inverters they tried. They suggested semi-permanent placement because of its weight, and having a plumber connect any natural-gas line.[7]

Fits: homes with natural gas that want an effectively unlimited fuel supply and accept a lower NG rating and more noise.

Backup Power

Champion 201176 Tri-Fuel

Best for: Homes with a natural-gas line that want a 120/240V inverter on gas, propane or NG.

• Running W (gas)7,250 W
• Running W (propane / NG)6,525 / 5,875 W
• Voltage120/240V
• Dry weight165.8 lb
• Noise72 dBA at 23 ft

Check price at ChampionCheck price at AmazonCheck price at Lowe's

4. Champion 201319: 120V essentials on gas or propane

Specs: 3,500 / 4,500 W gasoline, 3,150 / 4,500 W propane, 120V only (duplex plus TT-30R), <3% THD, 61 dBA from 23 ft, 99.2 lb, CO Shield, parallel-capable.[5]

What reviewers found: Popular Mechanics lists it as best for RV camping. It credits the fuel flexibility and the 30-amp RV outlet and says it can cover some home backup, such as a few 120V circuits through a manual transfer switch. Its listed downside is that you need an adapter to use it with a transfer switch.[10]

Fits: the essentials list in our worked example (about 3,000 running watts), with little headroom on propane.

Backup Power

Champion 201319

Best for: 120V essentials (fridge, sump, furnace fan, lights) on gas or propane.

• Running W (gas)3,500 W
• Running W (propane)3,150 W
• Voltage120V (TT-30R RV outlet)
• Dry weight99.2 lb
• Noise61 dBA at 23 ft

Check price at ChampionCheck price at AmazonCheck price at Lowe's

5. Honda EU2200i: fridge-and-phones backup, or half of a parallel pair

Specs: 1,800 rated / 2,200 max W, 120V, 0.95-gal tank (3.2–8.1 h), 48–57 dB(A), 47.4 lb, CO-MINDER; parallels with a second unit.[6]

What reviewers found: Popular Mechanics named it best overall in its 2026 portable-generator roundup, where every pick was an inverter. On an oscilloscope its sine wave stayed smooth even under heavy loads like a table saw or air conditioner, and the reviewers praised its quiet, enclosed design.[10] Bob Vila's testers ran a refrigerator alone on it for a few hours without problems. They noted it has no USB ports and no wheels.[7]

Fits: a refrigerator, lights, and electronics, but not a furnace fan plus a sump pump at the same time.

Backup Power

Honda EU2200i

Best for: A fridge, lights and phones, or one half of a quiet parallel pair.

• Running W (gas)1,800 W
• Voltage120V
• Noise48-57 dB(A)
• Dry weight47.4 lb
• Run time at 1/4 load8.1 h (0.95 gal)

Check price at HondaCheck price at AmazonCheck price at Lowe'sCheck price at Northern Tool

6. Westinghouse iGen12000DFc: most watts per pound, but no independent review yet (240V, dual fuel)

Specs: 9,000 running / 12,000 peak watts on gasoline, 8,100 / 11,000 on propane, 120/240V with L14-30R and 14-50R outlets, ≤3% THD, CO sensor, remote and electric start, 7.9-gal tank (19 h at 25%), 189 lb.[3]

Published reviews: no independent review yet.

Fits: 240V households that want the lightest 9,000 W unit here and the longest published gasoline run time (19 h at 25%).

Backup Power

Westinghouse iGen12000DFc

Best for: 240V homes that want the lightest 9,000 W inverter here, on gas or propane.

• Running W (gas)9,000 W
• Running W (propane)8,100 W
• Voltage120/240V
• Dry weight189 lb
• Run time at 25%19 h (7.9 gal)

Check price at WestinghouseCheck price at AmazonCheck price at Home DepotCheck price at Lowe's

Buying guide for a home-backup inverter

1. Size it first. Use the wattage calculator and compare against the running watts on the fuel you'll use.
2. Decide on 240V. If you have a well pump or want a transfer switch, only the 120/240V models qualify.
3. Pick the fuel plan: gasoline only (Honda), gas plus propane (Westinghouse, DuroMax, Champion 201319), or natural gas as well (Champion 201176). Check the cylinder size the maker assumes.
4. Check moving and storage. 165–263 lb units need a level path from where they're stored to a spot at least 20 feet from the house, the distance Consumer Reports advises.[9]
5. Confirm CO protection. All six list a CO shutoff or sensor. Consumer Reports calls this feature very important and now tests it.[9]
6. Plan the connection. Have a licensed electrician install a transfer switch or interlock. Never backfeed through an outlet.
7. California: buy a CARB-compliant version where required.

Frequently asked questions

Sources

1. Honda Power Equipment, EU7000iS product page and specifications. powerequipment.honda.com/generators/models/eu7000is
2. DuroMax Power Equipment, XP11000iH product page and specifications. duromaxpower.com/products/duromax-xp11000ih-…
3. Westinghouse Outdoor Power, iGen12000DFc specifications. westinghouse.com/products/igen12000dfc-…
4. Champion Power Equipment, 201176 9000W Electric Start Tri Fuel Open Frame Inverter. championpowerequipment.com/product/201176-…
5. Champion Power Equipment, 201319 4500W Electric Start Dual Fuel Inverter. championpowerequipment.com/product/201319-…
6. Honda Power Equipment, EU2200i product page and specifications. powerequipment.honda.com/generators/models/eu2200i
7. Glenda Taylor, Tom Scalisi, Mark Wolfe, "The Best Inverter Generators of 2026," Bob Vila, published Jan 21, 2026. bobvila.com/reviews/best-inverter-generators-2026/
8. David Dritsas, Honda EU7000iS review, Popular Mechanics, published Aug 17, 2026. popularmechanics.com/home/a73437788/…
9. Allen St. John, "Best Inverter Generators of 2026, Lab-Tested and Reviewed," Consumer Reports, updated Jan 1, 2026 (public portion; model ratings are members-only). consumerreports.org/…/best-and-worst-inverter-generators-a9189700579/
10. "The 6 Best Portable Generators for 2026, Tested and Reviewed," Popular Mechanics. popularmechanics.com/home/tools/a39528638/best-portable-generators/