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Deal.ai › Westinghouse › Generators
Westinghouse
Westinghouse 28000 Peak Watt Tri-Fuel Home Backup Portable Generator

Westinghouse 28000 Peak Watt Tri-Fuel Home Backup Portable Generator

Best price now

$3,899.00at Best BuyObserved at 5:14 AM

Compared across 5 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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Price facts

  • Lowest price today: $3,899.00 at Best Buy (checked Nov 9, 2026).
  • Checked at 5 stores.

Our take on the Westinghouse 28000 Peak Watt Tri-Fuel Home Backup Portable Generator

The Westinghouse 28000 Peak Watt Tri-Fuel is a large home-backup generator that runs on gasoline, propane or natural gas. Its 999cc engine delivers 20,000 running watts on gasoline, 18,000 on propane and 16,000 on natural gas, with under 5% THD so it can power sensitive electronics and a transfer switch setup. The 17.2-gallon tank gives up to 13 hours at quarter load. It is a heavy, loud, stationary-class machine for whole-home or large-load backup, and it competes with other tri-fuel units on fuel flexibility rather than portability.

Best forWhole-home backup with a transfer switchHomes with natural gas or a large propane supplyRunning well pumps, HVAC and large appliancesOwners who want one fuel source for long outages
Pros
  • Runs on gasoline, propane or natural gas
  • 20,000 running watts on gasoline handles large loads
  • Under 5% THD is safe for electronics and HVAC controls
  • 17.2-gallon tank gives long run times at light load
  • Tri-fuel lets you skip gasoline storage entirely
Cons
  • 557 lb, so it needs a cart, ramps or a permanent spot
  • 79 dBA is loud for a residential setting
  • Output drops noticeably on natural gas
  • No electric start convenience of an inverter-class unit; it is a big conventional generator
  • Needs a transfer switch and likely an electrician for home backup

Westinghouse 28000 Peak Watt Tri-Fuel Home Backup Portable Generator prices at every store

  • The Home DepotNew

    In stock

    $3,899.00Free shippingObserved at 5:14 AM
    Visit The Home Depot
  • Best BuyNew

    In stock

    $3,899.00Free shippingObserved at 5:14 AM
    Visit Best Buy
  • Lowe'sNew

    In stock

    $3,899.00Free shippingObserved at 5:14 AM
    Visit Lowe's
  • Academy SportsNew

    In stock

    $3,899.00+ $526.32 shippingObserved at 5:14 AM
    Visit Academy Sports
  • eBayPre-owned

    Availability unknownSold by br579219 (0% positive, 0 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $2,728.00+ $19.77 shippingVerified
    Visit eBay
  • eBayNew

    Availability unknownSold by joeyfor7_3 (100% positive, 787 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $4,929.99Free shippingVerified
    Visit eBay

Store links may earn us a commission. Some prices via Klarna.

Westinghouse 28000 Peak Watt Tri-Fuel Home Backup Portable Generator price history

Lowest price we've seen: $3,899.00 on Nov 9 at The Home Depot. Tracked across 4 stores since Nov 9.

What reviewers say

Owners of this class of Westinghouse tri-fuel generator praise the fuel flexibility and the clean under-5% THD output for home backup. Complaints center on weight, noise and the lower wattage on natural gas.

What people mention
  • Fuel flexibilityPraisedOwners value running on propane or natural gas instead of storing gasoline.
  • WeightCriticisedAt 557 lb it is hard to move without equipment.
  • NoiseCriticised79 dBA is loud and noticeable in a neighborhood.
  • Power qualityPraisedUnder 5% THD is cited as safe for sensitive electronics.
  • Natural gas outputMixedOutput falls to 16,000 running watts on natural gas, which some find limiting.

Specifications

Peak watts gasoline
28,000 peak wattsSource
Rated watts gasoline
20,000 running wattsSource
Peak watts propane
25,200 peak wattsSource
Rated watts propane
18,000 running wattsSource

Questions and answers

Can it power a whole house?
Yes, with a properly sized transfer switch. Its 20,000 running watts on gasoline cover most whole-home loads, though natural gas output is lower at 16,000 watts.
Does it run on natural gas?
Yes. It is tri-fuel and runs on gasoline, propane or natural gas, with output dropping as fuel energy density falls.
Is the power clean enough for electronics?
Yes. Total harmonic distortion is under 5%, which is generally safe for computers, TVs and HVAC controls.
How long does it run on a tank?
Up to 13 hours at 25% load on the 17.2-gallon tank. Heavier loads shorten that considerably.
How loud is it?
About 79 dBA at operating volume, which is loud. Place it away from windows and neighbors.
Can one person move it?
Not safely. At 557 lb it needs a cart, ramps or a permanent installation spot.
Where is the Westinghouse 28000 Peak Watt Tri-Fuel Home Backup Portable Generator cheapest?
At Best Buy, for $3,899.00, as of our latest check.
Where can I buy the Westinghouse 28000 Peak Watt Tri-Fuel Home Backup Portable Generator?
5 stores we checked sell it, including eBay, The Home Depot, Best Buy, Academy Sports, Lowe's.

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Buying guides that pick the Westinghouse 28000 Peak Watt Tri-Fuel Home Backup Portable Generator

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Stores we've priced the Westinghouse 28000 Peak Watt Tri-Fuel Home Backup Portable Generator at

  • Best Buy deals and prices
  • Home Depot deals and prices
  • Lowe's deals and prices

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Peak watts natural gas
22,400 peak wattsSource
Rated watts natural gas
16,000 running wattsSource
Run time
up to 13 hours at 25% loadSource
Fuel tank capacity
17.2-gallonSource
Engine displacement
999ccSource
Weight
557 lb.Source
Operating volume
79 dBASource
Total harmonic distortion
less than 5% THDSource