Generac or Kohler: which standby generator fits a Florida home?

The two names on almost every standby generator in Palm Beach County are Generac and Kohler. They are both serious machines, both built for whole-home backup, and both sold by installers who will tell you — sincerely — that their brand is the better one. This page is not a brand argument. It is the framework for choosing between them, built on the things that actually differ: the installer, the monitoring, the noise, and the warranty.

The short answer

For most homes in Palm Beach County, the installer matters more than the badge. A Generac installed well will outlast a Kohler installed badly, and the reverse. Once the installer is equal, the differences that remain are four: the monitoring app, the noise at exercise, the warranty terms, and the price of the unit itself. The whole-home cost range — $11,000–$17,000, installed and permitted — holds for either brand at 22–26 kW.

If you want the one-sentence version: Generac has the larger dealer network and the more familiar app; Kohler has the longer premium warranty and the quieter exercise. Neither is a wrong choice. The wrong choice is a brand picked without a load calculation.

Figures last reviewed November 2026 · Sources: see ‘How we get our numbers’ on the About page.

The installation and the maintenance decide more than the badge

A standby generator is not a box you buy; it is a system that is installed, started, and then maintained for twenty years. The brand on the box is the least of it. What decides whether the generator starts in a hurricane is the installation — the pad, the fuel line, the transfer switch, the panel — and the maintenance that follows. The page on why generators fail to start has the failure list; the short version is that most failures are maintenance, not brand.

Both brands are sold through dealers, and the dealer is the one who installs and maintains the unit. A dealer who sells one brand will service that brand; a dealer who sells both will usually have a preference, and it is worth asking why. The question to ask any installer, of either brand, is the same: show me the load calculation, show me the permits, and show me the service plan.

The dealer network

Generac has the larger dealer network in Florida — more dealers, more parts on the shelf, more technicians who have seen your model before. Kohler’s network is smaller but the dealers tend to be larger, full-service firms. In Palm Beach County, both brands have dealers within a short drive of most homes. The network matters most after the sale — when the unit needs a part in August, and the dealer who has it in stock is the dealer who gets you running.

Ask the installer which brand they service most. A dealer who installs fifty Generacs a year will have the parts and the experience; a dealer who installs five Kohlers a year will not, whatever the brand’s reputation.

Monitoring: what the phone in your pocket tells you

Both brands have a monitoring app, and the difference between them is real — but it is a difference of price and packaging, not of whether you can see the generator from up north.

Generac Mobile Link

Generac’s Mobile Link Basic is free. It shows the generator’s status and the exercise history. Premium is from $54.99 a year.

Generac’s Mobile Link Premium is $54.99 a year for a single generator on the web ($74.99 on the app); $78.99 a year for a single home on the web; $109.99 a year for multiple homes on the web. The prices are per generator, and the web and app prices differ for the same plan. One price to ignore: $49.99 a year, which appears in older listings and on a page that still shows the old price — it is retired, and it is not what you will pay.

Kohler OnCue Plus

Kohler’s monitoring is OnCue Plus, and it is included with the generator — no annual fee, no subscription to forget. It gives you the same status, exercise history, and alerts, plus remote start and stop from the app. The KOHLER Energy Management app is the newer interface, and it is being rolled out across the range; some older units still run the OnCue Plus app, and the two do not always show the same screens. If monitoring from up north matters to you — and for a house that sits empty, it should — ask the installer which app your unit will run, and check it before the installation is finished.

Wi-Fi or cellular?

Both systems can report over Wi-Fi or over a cellular connection. Wi-Fi is free but fails when the home’s internet fails — which is exactly when you most want to know the generator ran. A cellular connection costs a small annual fee and reports independently of the house. For a house that sits empty, cellular is the right choice; for a house that is occupied, Wi-Fi is usually enough.

Noise: how loud, and when

Both flagships are rated at 67 dB(A) at full load — the same number, measured the same way, at 23 feet (7 metres) from the unit. At exercise, the difference is one decibel: Generac 57 dB(A), Kohler 56 dB(A). One decibel is the smallest difference a human ear can reliably hear, and it is not a reason to choose one brand over the other.

What matters more than the decibel rating is the exercise schedule. Both units run a weekly exercise — a short, low-load run that keeps the engine ready. The exercise is the noise your neighbours will hear, and it is the noise you will hear from the patio. Set it for a time that suits you, and tell the neighbours when it runs — the conversation is worth more than the decibel.

Warranty: what is covered, and for how long

Generac’s warranty is a 5-year limited warranty on the unit, with a 10-year extended warranty sold separately. The extended warranty is a purchase — it is not included, and it is worth pricing before you buy, not after.

Kohler’s warranty is a 5-year / 2,000-hour premium warranty, and it includes parts, labour, and travel. The travel matters in this county — a warranty that pays for the technician to come to you is worth more than one that pays for the part and leaves the call-out to you.

Read the warranty before you sign, whichever brand you choose. The exclusions are where the surprises live — and the service plan is what covers the years after the warranty ends.

If you’ll be 1,200 miles away when it matters

For a house that sits empty, the brand decision is a monitoring decision. The generator that tells you it ran — and that tells you if it failed to start — is worth more than the generator that is one decibel quieter. Both brands can do this; the difference is whether the monitoring is included or a subscription, and whether it reports over cellular when the house’s internet is down.

Read the snowbird guide: What an outage does to an empty Florida home.

Generac vs Kohler, answered

Which brand is more reliable?

Both are reliable when they are installed and maintained. The reliability difference between the brands is smaller than the reliability difference between a good installation and a bad one, and between a maintained unit and a neglected one. Choose the installer first; the brand second.

Which is quieter?

At full load, the same: 67 dB(A) for both flagships, measured at 23 feet. At exercise, Kohler is one decibel quieter — 56 against 57 — which is the smallest difference a human ear can reliably hear. Noise is not a reason to choose between these two.

Which costs more?

At the same size, the units are close in price, and both sit inside the county’s $11,000–$17,000 turnkey range at 22–26 kW. The price difference between the brands is smaller than the price difference between two installers, and smaller than the difference a panel upgrade makes. Compare turnkey quotes, not unit prices.

What if my installer only sells one brand?

That is normal, and it is not a problem — provided the installer is good. A single-brand dealer who installs fifty units a year will serve you better than a dual-brand dealer who installs five. Ask about the load calculation, the permits, and the service plan; the brand is secondary.

Can I switch brands later?

You can — but you would be replacing the generator, the switch, and the fuel work, and paying for the installation twice. The brand is a twenty-year decision. Choose it on the installer, the monitoring, and the warranty, not on the badge.

Related guides

The generator sizing guide · Remote monitoring · The full Palm Beach County cost breakdown · Maintenance & service plans · Why generators fail to start · City costs: Boynton Beach · Delray Beach · Jupiter

Palm Beach Backup Power is an independent information service. We are not a generator installer. These figures are published estimates, not quotes — the number for your home comes from your installer’s written quote.