Florida generator guide

Why the Same Florida House Can Take Two Very Different Generators

Ask what size generator your house needs and you're expecting a number back, like a shoe size. But the same Florida house — same floor plan, same pair of air conditioners — can be backed up by two very different machines, and both answers are correct. The difference is a choice nobody's asked you yet: does everything in your house have to be able to run at the same moment?

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The worst second of the worst day

Unmanaged sizing works like this. An installer adds up everything in your house that could possibly draw power at the same moment — the air conditioners, the water heater, the dryer, the pool pump, the oven with Thanksgiving in it — and buys enough generator to survive that moment, even if it never actually arrives. You're paying for a coincidence.

And air conditioners make that math ugly, because a compressor doesn't ease into work. At the instant it wakes up, it gulps several times the power it needs to keep running — just for a heartbeat, while the motor breaks itself loose and gets spinning. Utility power shrugs that off. A generator can't. It has to survive the gulp.

So an unmanaged house gets sized for a stack of worst cases: both compressors starting at once, on top of everything else already running. That's how a very normal house ends up needing a machine you'd expect behind a small restaurant.

The bouncer in the gray box

Managed load starts from a different question: what actually has to run at the same time? Because almost nothing does. Your dryer doesn't care if the towels finish a little late. The water heater has a whole tank of hot water to coast on. The pool pump would happily wait until Tuesday.

So instead of buying generator for the coincidence, small control modules go on the heavy circuits — Generac hangs them on the wires themselves, Kohler builds the priority list into the transfer switch — and they work your panel like a bouncer works a door. When the generator feels itself straining, the lowest-priority heavy load gets held at the rope for a few minutes. The air conditioner starts. Then the rope drops and everything else files back in.

That referee is the whole trick. It lets a noticeably smaller machine back up every circuit in the house without ever being asked to carry all of them in the same breath. Most families ride out an entire outage without once catching the water heater waiting in line.

So which house do you want to be during the outage?

Be straight about the trade. On a brutal August afternoon, when both compressors are fighting the heat all day, whatever sits at the bottom of the priority list might wait a long time for its turn. If somebody in your house will genuinely stand at the dryer mid-heat-wave and be angry about it, unmanaged is your answer, and it's a fine answer — it just costs more machine.

But a Florida outage has a shape. It's the days after a storm, the whole neighborhood quiet except for generator hum, and the only load anyone truly cares about is the one keeping the indoor air cool and dry while the outside air feels like a wet towel. Managed setups are built for exactly that: the air conditioning holds the top of the priority list and everything else politely works around it.

There's a middle move worth knowing about, too. A soft starter on the compressor teaches it to ramp up instead of slamming on, and once the start-up gulp shrinks, the whole sizing math relaxes with it.

And a smaller machine has a quiet advantage that never shows up in the brochure: it eats less fuel. On propane, in the second week after a storm, that can matter more than anything on the spec sheet.

What this means for the price on your quote

This is why a sizing chart can't answer the question, and neither can a rule of thumb about square footage. The real answer lives in your actual house — what's on the panel, what the compressor nameplate says, what fuel is at the meter, and which way you'd rather make the choice this whole article is about.

That's how GENERasic works. You give it your address, it works out what your specific house needs, and it comes back with one committed installed price — a single number for your home, managed or unmanaged, whichever your house calls for, and it doesn't move after somebody visits.

You already know the question now. Get your price and find out which of the two houses yours turns out to be.

Common questions

We're in South Florida with multiple AC units — will the power management modules actually keep up?

Yes — that's the exact situation they were built for. The modules hold one compressor back for a moment while the other starts, then bring it online, so the units take turns hitting the generator instead of slamming it together. Owners in South Florida run multiple air conditioners this way through extended outages, and the house stays cool the whole time. The compressors trade off so smoothly most people never notice it happening.

Does a soft start on the AC really make things easier on the generator?

It does, and on the air conditioner too. A compressor's start-up surge is several times its running draw, and that surge is what forces generator size up. A soft starter ramps the motor instead of letting it slam on, which can cut the surge roughly in half — gentler on the generator, gentler on the compressor. Paired with load management, it's often what keeps you in a smaller machine that burns less fuel.

I was out almost two weeks after a hurricane — should I just get the biggest generator they make?

Outage length is a fuel problem more than a size problem. A bigger engine doesn't run longer — it runs thirstier. On natural gas that hardly matters, but on propane, the smaller managed setup can be the one still humming in week two while the oversized unit waits on a delivery truck. Size for what has to run together. Plan fuel for how long you might be on your own.

A whole-home install costs a fortune — why not just a portable with a quick-connect?

A portable on a quick-connect is a fair budget play, and plenty of people are happy with one. The trade is you: somebody has to roll it out in the weather, hook it up, start it, and keep feeding it — usually at the worst possible moment, and it does nothing if the power drops while you're away. A standby with managed load sits in the middle: whole-panel coverage from a machine near the small end of the lineup, and it starts itself whether you're home or not.

How fast does it take over when the power goes out?

About ten seconds from the lights dropping to the generator carrying the house — long enough that you'll want a battery backup on your Wi-Fi and any medical equipment, short enough that the fridge never notices. Some owners add a short warm-up delay on purpose, so the engine has a little heat in it before the air conditioner leans on it. Easier on both machines, and you're still cool before you've found the flashlight.

Stop reading ranges. Get your number.

GENERasic pulls the real property, flood, and elevation data for your exact address and returns one all-in installed price — sized to your home, your fuel, and your flood elevation. The vetted local installer confirms it on site.

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