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Westinghouse Outdoor Power Equipment sells generators and other outdoor power products under a brand license (it is a separate company from Westinghouse Electric Company), and it has built much of its generator catalog around one idea: fuel flexibility. Where many portable generators run on gasoline alone, a large share of the Westinghouse lineup is offered in dual-fuel (gasoline and propane) or tri-fuel (gasoline, propane and natural gas) form, and the larger units are sold explicitly as home backup machines with 30A and 50A outlets intended for use with a transfer switch or interlock kit. This guide covers the Westinghouse models most relevant to a homeowner shopping for outage protection in 2026: what each one is, which households they suit, how they compare on paper, and what has to happen during installation for any of them to be used safely and legally. Model specifications below are drawn from the Amazon listings for these specific models as retrieved in October 2026, plus general, well-established knowledge about how portable generators work. Listing details can change or contain errors, so confirm specs against the current listing and owner’s manual before buying.
How the Westinghouse lineup is organized
The models covered here fall into two distinct families, and understanding the split is the single most useful thing you can do before comparing wattage numbers.
Open-frame home backup portables. These are the traditional-looking units on never-flat wheels with a steel frame and foldable handles. In this group the listings describe the 28,000-peak-watt models (tri-fuel and gasoline-only) built around a 999cc engine, and the 14,500-peak-watt dual fuel model built around a 550cc engine. They are the highest-output machines in the range, they carry both 30A and 50A outlets, and the listings describe them as pairing with an interlock kit, a manual transfer switch, or the Westinghouse WATS200 automatic transfer switch (switch sold separately). The listings state total harmonic distortion of less than 5%, copper windings, automatic low-oil shutdown, and a carbon monoxide sensor that shuts the unit down when elevated CO is detected. The 28,000-watt engines use full-pressure lubrication with an automotive-style oil filter; the 550cc unit uses a pressure lubrication system with a reusable oil screen. The listings state a 3-year limited residential warranty on these models; read the warranty terms, since residential coverage may not extend to jobsite or commercial use.
Home backup inverter generators. The iGen series pairs inverter electronics with the outlets a house panel connection needs. Here that means the iGen12000TFc (tri-fuel), the iGen12000DFc (dual fuel) and the iGen8200TFc (tri-fuel). Inverter units produce AC, convert it to DC and re-invert it, which is why the listings cite 3% THD or less, and they throttle engine speed to match load instead of running at a fixed speed. The 12,000-watt inverter listings claim this load-following behavior can cut fuel consumption by up to half versus a traditional generator, and cite as low as 64 dBA in Eco Mode; actual fuel use and noise vary with load, setup and conditions. The trade-off is that an inverter generally involves more complex electronics than a conventional open-frame unit of similar output.
Across both families, the naming suffixes are worth decoding: DF means dual fuel (gasoline and propane), TF means tri-fuel (gasoline, propane and natural gas), and the trailing c appears to denote the CO sensor model (these listings all advertise a CO sensor). Published peak and running wattage figures are quoted on gasoline; propane and natural gas output is lower on any multi-fuel engine, with natural gas lowest, so size around the fuel you actually plan to use most.
The models worth knowing
Westinghouse 28000 Peak Watt Tri-Fuel Home Backup Portable Generator
This is the top of the portable range: a 999cc engine delivering 20,000 running and 28,000 peak watts on gasoline, with propane and natural gas also supported. It carries 50A and 30A outlets, remote electric start plus push-button start, a 17.2-gallon gasoline tank, less than 5% THD, automatic low-oil shutdown and a CO sensor. The listing highlights full-pressure lubrication and an automotive-style oil filter.
It is aimed at larger homes where the goal is to power many circuits rather than a handful of essential ones, and where a permanently installed standby generator is not the plan. Whether it can carry a given home depends on a load calculation, not square footage. The tri-fuel capability is the main reason to choose this version over the gasoline-only sibling: a home with existing natural gas service may be able to run it on utility gas (via a professionally installed connection) without refueling trips, keeping gasoline and propane as fallbacks. Gas supply can be interrupted during some emergencies, so a fallback fuel is worth planning for. It is a heavy machine, so the never-flat wheels, foldable steel handles and lift bracket matter in practice — plan where it will live and how it will be moved before buying.
- Automatic Home Backup Made Portable: Pair with the Westinghouse WATS200 Automatic Transfer Switch for automatic backup power. This…
- Built for Longer Engine Life: The powerful 999cc engine features full-pressure lubrication that delivers oil to critical component…
- Power for sensitive electronics: Less than 5% THD delivers cleaner power for phones, computers and TVs. Copper windings help it ru…
Westinghouse 28000 Peak Watt Home Backup Portable Generator (Gasoline)
Mechanically this is the same platform as the tri-fuel model above — 999cc engine, 20,000 running and 28,000 peak watts, full-pressure lubrication with an automotive-style oil filter, copper windings, under 5% THD, 50A and 30A outlets, CO sensor and low-oil shutdown — but it runs on gasoline only. The listing mentions electric start with auto choke and describes it as transfer-switch ready, with 30A and 50A outlets that the listing says pair with an interlock kit, manual transfer switch, or the WATS200 automatic transfer switch (sold separately).
This version suits a household that has no natural gas service and no interest in managing propane cylinders. Gasoline-only is also simpler to refuel away from home, though check the residential warranty terms before using it for jobsite work. The main consideration is storage and rotation: gasoline degrades, so a unit this size (the listing does not state its tank capacity; confirm before buying) needs a fuel plan — fresh fuel, stabilizer, and safe storage volume for a multi-day outage.
- Automatic Home Backup Made Portable: Pair with the Westinghouse WATS200 Automatic Transfer Switch for automatic backup power. This…
- Built for Longer Engine Life: The powerful 999cc engine features full-pressure lubrication that delivers oil to critical component…
- Power for sensitive electronics: Less than 5% THD delivers cleaner power for phones, computers and TVs. Copper windings help it ru…
Westinghouse iGen12000TFc Tri-Fuel Portable Inverter Generator
The iGen12000TFc produces 12,000 peak and 9,000 running watts on gasoline and also runs on propane or natural gas. Its 457cc four-stroke OHV engine is rated for up to 19 hours at 25% load on a 7.9-gallon tank and as low as 64 dBA in Eco Mode. Outputs include one 120/240V 14-50R 50A outlet and one 120/240V L14-30R 30A twist-lock, both described as transfer switch or interlock kit ready. THD is rated at 3% or less, and the unit adds an LED data center showing fuel level, output, remaining run time, voltage and lifetime hours, a remote start key fob, and parallel capability.
This is a candidate for a homeowner who wants high output with the lower-distortion behavior of an inverter and who has natural gas available at the house. The listing calls it whole-home backup power, but whether 9,000 running watts is enough depends on your own load calculation, and listed output is lower on propane (8,100 W running) and natural gas (7,200 W running). The data display and lifetime-hours counter make maintenance tracking straightforward, which matters on a machine that may run continuously for days.
- HOME BACKUP POWER, ≤3% THD: The Westinghouse iGen12000TFc tri fuel inverter generator provides whole home backup power that's safe…
- POWERFUL ENGINE, VERY QUIET OPERATION: Eco Mode, insulation and mufflers keep this generator neighborhood friendly with as low as …
- SAVE UP TO 50% IN FUEL COSTS: Inverter technology matches engine speed to power demand to cut fuel consumption in half versus trad…
Westinghouse iGen12000DFc Dual Fuel Portable Inverter Generator
The iGen12000DFc matches its tri-fuel sibling closely — 12,000 peak and 9,000 running watts on gasoline, 457cc engine, up to 19 hours at 25% load on 7.9 gallons, as low as 64 dBA in Eco Mode, 3% or less THD, 50A 14-50R and L14-30R 30A outlets, LED data center, remote electric start, parallel capability, CO sensor — but runs on gasoline and propane only.
It is the better-matched option for homes without natural gas service, which includes many rural and some suburban properties. Propane is the practical advantage here: it stores far longer than gasoline, so cylinders can be kept ready without worrying about stale fuel, and gasoline remains available when cylinders run out. Connecting to a larger propane tank should be done by a licensed propane or gas professional. Listed output on propane is 11,000 W peak / 8,100 W running.
- HOME BACKUP POWER, ≤3% THD: The Westinghouse iGen12000DFc dual fuel inverter generator provides whole home backup power that's saf…
- POWERFUL ENGINE, VERY QUIET OPERATION: Eco Mode, insulation and mufflers keep this generator neighborhood friendly with as low as …
- SAVE UP TO 50% IN FUEL COSTS: Inverter technology matches engine speed to power demand to cut fuel consumption in half versus trad…
Westinghouse iGen8200TFc Tri-Fuel Portable Inverter Generator
The iGen8200TFc delivers 6,600 running and 8,200 peak watts on gasoline and also accepts propane (5,940 running / 7,380 peak) and natural gas (5,280 running / 6,560 peak), per the listing. It uses a 298cc four-stroke OHV engine with a cast iron sleeve, rated for up to 17 hours at 25% load on a 3.9-gallon tank, with under 3% THD, automatic low-oil shutdown, a CO sensor and parallel capability. Outlets include one 120/240V 14-50R 50A for home backup, one RV-ready 120V TT-30R 30A, and a GFCI 120V 5-20R household outlet.
This has the smallest engine and tank in the group and may suit essential-circuit backup such as refrigeration, a furnace blower, sump pump, lights, internet and device charging, depending on your load calculation and any motor starting surges. Its 50A outlet is the one the listing describes as transfer-switch or interlock-kit ready, which a licensed electrician can connect to the house; the 30A outlet is an RV-style TT-30R, not a house-panel outlet. It also suits dual use at a campsite or with an RV, and parallel capability leaves room to add capacity later rather than buying bigger now.
- INVERTER BENEFITS, HOME BACKUP POWER: The Westinghouse iGen8200TFc is a tri fuel generator with all the benefits of an inverter, b…
- SAVE FUEL, SAVE MONEY, LESS NOISE: Inverter technology adjusts engine speed to meet power demand, significantly cutting fuel use c…
- TRANSFER SWITCH OR INTERLOCK KIT READY: One 120/240V 14–50R 50A outlet for home backup can run your air conditioner, refrigerator,…
Westinghouse 14500 Peak Watt Dual Fuel Home Backup Portable Generator
This model sits between the inverters and the 28,000-watt machines: a 550cc engine producing 11,500 running and 14,500 peak watts on gasoline, with propane as the second fuel. The listing cites up to 19 hours at 25% load on a 9.5-gallon tank (runtime is shorter at higher loads), a pressure lubrication system with a reusable oil screen, under 5% THD, copper windings, push-button and remote electric start, 50A and 30A outlets, low-oil shutdown, a CO sensor, WATS200 compatibility and a 3-year limited residential warranty.
It is aimed at homes that want more headroom than an 8,200-watt unit. Whether it can start and run a central air conditioner or heat pump, a well pump and other loads together depends on each appliance’s running and starting watts, so do the load math (or have an electrician do it) before assuming it fits. Compared with the iGen12000DFc, it offers higher listed output (11,500 running watts versus 9,000), while the inverter offers lower THD, lower listed noise and load-following fuel use.
- Automatic Home Backup Made Portable: Pair with the Westinghouse WATS200 Automatic Transfer Switch for automatic backup power. This…
- Built for Longer Engine Life: The powerful 550cc engine features a pressure lubrication system that delivers oil to critical compo…
- Power for sensitive electronics: Less than 5% THD delivers cleaner power for phones, computers and TVs. Copper windings help it ru…
Westinghouse model comparison
| Model | Type | Output on gasoline (running / peak) | Fuel | Engine & tank | Best fit |
|---|---|---|---|---|---|
| 28000 Peak Watt Tri-Fuel | Open-frame home backup portable | 20,000 / 28,000 W | Gasoline, propane, natural gas | 999cc; 17.2 gal | Larger homes with heavy loads and natural gas service (confirm with a load calculation) |
| 28000 Peak Watt (Gasoline) | Open-frame home backup portable | 20,000 / 28,000 W | Gasoline | 999cc; tank size not stated in listing | Maximum listed output where only gasoline will be used |
| iGen12000TFc | Inverter, home backup | 9,000 / 12,000 W | Gasoline, propane, natural gas | 457cc; 7.9 gal, up to 19 hr at 25% load | High output with 3% THD or less and natural gas service available |
| iGen12000DFc | Inverter, home backup | 9,000 / 12,000 W | Gasoline, propane | 457cc; 7.9 gal, up to 19 hr at 25% load | Same capability for homes without natural gas; propane storage |
| iGen8200TFc | Inverter, home backup | 6,600 / 8,200 W | Gasoline, propane, natural gas | 298cc; 3.9 gal, up to 17 hr at 25% load | Smaller-scale essential-circuit backup; smallest engine and tank here; RV-ready outlet |
| 14500 Peak Watt Dual Fuel | Open-frame home backup portable | 11,500 / 14,500 W | Gasoline, propane | 550cc; 9.5 gal, up to 19 hr at 25% load | Homes wanting more headroom than 8,200 W on two fuels (confirm with a load calculation) |
Peak and running figures above are the gasoline ratings stated in the Amazon listings. Output on propane and natural gas is lower on every multi-fuel engine (for example, the iGen12000TFc listing gives 8,100 W running on propane and 7,200 W on natural gas).
How to choose
Start with a load list, not a wattage target. Add up the running watts of what must stay on, then account for the surge draw of the largest motor — typically a well pump, sump pump, air conditioner compressor or furnace blower — because starting surge, not steady load, is what trips an undersized generator. Our generator size calculator walks through that math circuit by circuit. As a rough orientation only: the 8,200-watt inverter is in the essentials-backup class, the 12,000-watt inverters and the 14,500-watt dual fuel are in the larger-home class, and the 28,000-watt units are the highest-output option. Actual coverage depends entirely on your appliances, which is why a licensed electrician’s load assessment is worth having before you buy.
Then choose fuel based on what your property actually has. If a natural gas meter is already at the house, a tri-fuel model lets you run on utility gas, which removes refueling from the equation during a long outage. If not, dual fuel with propane is usually the more practical plan because propane stores indefinitely. Gasoline-only makes sense when neither applies and when the generator will also be hauled to work sites.
Weigh inverter versus open-frame honestly. Inverters give you lower THD, quieter operation and engine speed that tracks load; open-frame units give more watts per pound of machine and simpler electronics. The listings describe both families as transfer-switch or interlock-kit ready, so the choice is about noise tolerance, sensitivity of your electronics, how much output you need, and budget. Check local noise ordinances and HOA rules, which can matter as much as the decibel rating.
Consider duration and climate. A portable needs someone present to refuel and check oil, which shapes how it performs over a multi-day event. If outages in your area tend to be long, read best backup power for a 3-day outage and, for cold-weather starting, storage and runtime realities, choosing and running a portable generator in winter outages. If you are comparing a portable against a permanently installed standby unit or a home battery, the broader power and backup guide lays out how those options differ in cost, automation and maintenance.
Installation and safety
Carbon monoxide is the primary risk. Run any engine-driven generator outdoors only, on a dry level surface, well away from doors, windows, vents and crawlspace openings, and never in a garage, carport, shed, breezeway or under an overhang — even with doors open. Point the exhaust away from the house. Install working CO alarms on every level of the home and test them before storm season. The CO sensor shutdown fitted to these models is a backstop, not a substitute for correct placement.
Connecting to house wiring requires proper equipment and a licensed electrician. The 50A outlets (and the 30A twist-lock outlets on the larger models) are described in the listings as transfer-switch or interlock-kit ready; the WATS200 automatic transfer switch is listed for the open-frame models only, and the iGen8200TFc’s 30A outlet is an RV-style outlet rather than a house-panel connection. Any manual transfer switch, interlock kit or automatic transfer switch should be selected and installed by a licensed electrician in accordance with local code and permitting. Ask your electrician to confirm the equipment is compatible with the specific generator and your panel. Backfeeding a panel through a dryer outlet or any improvised cord is unsafe and can energize utility lines, endangering line crews and neighbors. If you use the generator without a transfer switch, run only properly rated outdoor extension cords directly to appliances.
Natural gas connections are not a DIY job. Tri-fuel operation on utility gas requires a correctly sized gas line and a code-compliant connection point, which means a licensed gas fitter or plumber, local permits, and verification that your meter and piping can supply the required volume without starving other appliances. Propane hoses, regulators and cylinder placement should follow the manufacturer’s instructions exactly, and any permanent propane tank connection should be made by a licensed propane or gas professional. Check with your local building department and fire marshal about generator, fuel-storage and gas-connection rules.
Handle fuel and heat carefully. Refuel only with the engine off and cool, store gasoline in approved containers away from living space and ignition sources, keep the unit dry, and never touch electrical connections with wet hands or while standing in water. Follow the owner’s manual for break-in, oil type and oil change intervals; low-oil shutdown protects the engine but does not replace checking the oil. Confirm warranty terms and registration requirements with Westinghouse directly, since coverage details and service procedures are set by the manufacturer.
Medical and life-safety equipment. A portable generator needs a person to refuel it, monitor it and restart it if it shuts down, so it should not be your only plan for oxygen concentrators, ventilators or other medical equipment. If someone in your household depends on powered medical devices, talk to their healthcare provider and your utility about a backup plan.
Budget beyond the generator. The total cost of home backup usually includes more than the unit itself: a transfer switch or interlock kit and a licensed electrician’s installation and permits, a gas-line or propane connection if you plan to use those fuels, fuel and storage containers, a cover or enclosure rated for use, and ongoing oil, filter and spark plug service. Get written quotes from local licensed contractors for the installed total.
Frequently asked questions
What does tri-fuel add over dual fuel?
Dual fuel adds propane to gasoline; tri-fuel adds natural gas as a third option. The practical value of natural gas is potentially long run time for as long as the utility supply holds, with no refueling and no fuel storage; gas pressure and availability can be affected by some emergencies. That only pays off if gas service already reaches the house and a licensed professional installs a properly sized connection and confirms local permit requirements. For homes without gas service, a dual fuel model delivers most of the same flexibility at less complexity.
How much generator does a whole house need?
It depends entirely on the loads, not the square footage. Homes with electric water heating, electric ranges, multiple air conditioning stages or well and sump pumps need far more headroom than homes with gas appliances. The reliable method is to list running watts for everything you want live at once, add the largest motor’s starting surge, and compare that figure with a model’s running — not peak — rating. Peak output exists to absorb brief surges, not to carry continuous load.
Why does THD matter for home backup?
Total harmonic distortion describes how clean the AC waveform is. Lower distortion is generally preferred for electronics such as computers, televisions, modern appliance control boards and variable-speed HVAC equipment. The inverter listings cite 3% THD or less; the open-frame home backup listings cite under 5%. The listings describe both as suitable for sensitive electronics, with the inverters sitting lower on the scale. Treat that as the seller’s characterization and check the requirements of any especially sensitive equipment.
What maintenance does a portable home backup generator require?
Treat it like a small engine that must start on demand. That typically means periodic exercise runs under load, oil and filter changes at the interval in the manual, air filter and spark plug service, battery upkeep on electric-start units, fuel stabilizer or fuel-system draining for gasoline storage, and a check of cords, outlets and the transfer switch connection before storm season. The lifetime-hours readout on the iGen models makes interval tracking easier. Follow the manufacturer’s schedule rather than a generic one.