Florida generator guide

Gas or Electric? Your Appliances Are Quietly Picking Your Generator Size

Picture two houses on the same Florida street. Same square footage, same number of people inside, same central AC humming on the roof. One of them needs a generator a full size bigger than the other, and it costs thousands more. The only real difference is three appliances and which pipe they're plugged into. So before anyone quotes you off your house size, here's the thing almost nobody checks first: whether your stove, dryer, and water heater run on gas or electric.

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The number isn't really about how big your house is

Ask around and you'll hear that a generator gets sized by square footage. Bigger house, bigger unit. It's the first thing the online calculators ask, and it feels right.

But a 1,600 square foot all-electric house can outdraw a 3,000 square foot house that cooks, dries, and heats its water on gas. It happens all the time. The smaller home is quietly asking its electrical panel to make a lot of heat, and making heat out of electricity is about the most power-hungry thing a house ever does.

That's the part that moves the tier. Not the walls. The heat.

Why gas shrinks the generator you need

Here's what's actually going on. An electric water heater pulls something like 5,000 watts while it's reheating a tank. That's a small central air conditioner's worth of draw, sitting in your utility closet, kicking on whenever someone takes a shower. Your electric dryer and your electric range each play in that same neighborhood when they're running hot.

Stack all three and you've bolted the equivalent of a second home onto the load your generator has to cover at once. That's what pushes a house up out of the common sizes and into the big, expensive units.

Now swap those three to gas. A gas water heater sips about as much electricity as the clock on your oven — enough to light a spark and blink at you, nothing more. The heat comes from the gas line, so your generator never sees it. Do that across the water heater, the dryer, and the stove, and you've handed off most of your home's heat-making to a pipe that keeps working when the grid doesn't. The generator gets to drop a whole tier.

Before you talk yourself into the smaller unit

A couple of honest catches, because this is where people trip.

Gas doesn't mean zero. A gas dryer still spins its drum on an electric motor, your gas furnace still runs an electric blower, and every gas appliance needs a little power for its controls. It's a trickle next to the electric version, but it's not nothing, and a good load calculation counts it.

And in Florida, none of this touches the real giant in the room: your air conditioning. On a July night the AC is the biggest thing your generator carries, and gas appliances don't shrink it one bit. If you've got two systems — say a four-ton and a three-ton — that's the number driving your floor, gas kitchen or not. Modern standby units help by staggering start-ups so the AC, water heater, and dryer don't all lunge at once, which trims the peak. But wishful thinking about your gas stove won't cover a pair of compressors slamming on together.

Stop guessing the tier — get the real number for your address

You can see why the guessing games go sideways. Fuel type moves you a tier one way, your AC tonnage moves you back the other, and the panel has the final say. A chart based on square footage can't see any of that, and neither can a neighbor with a generator he likes.

That's the whole idea behind GENERasic. Instead of a range that leaves you doing math you can't check, you get one committed installed price tied to your actual address — your fuel, your AC, your panel, the gas or electric appliances you really have. One number, sized right the first time, so you're not paying for a tier you didn't need or coming up short on the hot night you finally use it.

Punch in your address, and see your price.

Common questions

Is it true you can oversize a generator?

You can, and plenty of homes do. An oversized unit costs more up front and then burns more fuel every hour it runs, often loafing along at half its capacity during a real outage. Bigger isn't safer here — it's just a bigger fuel bill. The goal is a unit matched to what your home actually pulls at once, with a little headroom for start-up surge, not a monster picked to feel safe.

My dryer and stove are gas — don't they still use some electricity?

Yes, and it's a fair point. A gas dryer's drum turns on an electric motor, and every gas appliance needs a bit of power for igniters and controls. But it's a fraction of the electric version: a gas dryer might sip a few hundred watts where an electric one pulls several thousand. A proper load calculation counts that trickle — it just doesn't have to reserve thousands of watts of heating element that isn't there anymore.

Will a smaller generator still run my air conditioning?

That's the whole question in Florida, and the answer is usually yes when the unit is sized to your specific AC. Central air is the heaviest load your generator carries, especially at the moment the compressor starts. Going gas on your appliances frees up room for that AC rather than fighting it. The size has to be set against your actual tonnage, though — that's exactly what gets missed when someone sizes off square footage alone.

I have two AC units, like a four-ton and a three-ton. Do gas appliances even help at that point?

They still help, but your two systems set the floor, not your kitchen. With that much cooling, the compressors are the number to beat. Gas appliances keep the water heater, dryer, and range off the generator so more of its capacity goes to the AC, which can be the difference between one tier and the next. But nobody should promise you a size for a two-system home without a real load calculation.

Does natural gas or propane change the size I get?

It can, slightly. The same generator often puts out a bit more on propane than on natural gas, so the fuel you run affects the usable wattage. In most of Florida, homes on a natural gas line lean that way because the line keeps feeding through an outage instead of draining a tank. Which fuel you're on is one of the details that should go into your price, not get assumed.

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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