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Propane Generators
Propane Generators for Reliable, Long-Lasting Backup Power
A propane generator is one of the most dependable choices for homeowners and business owners who want backup power that doesn't degrade sitting in storage. Unlike gasoline, propane doesn't go stale after a season or two, which makes a propane powered generator a smart option for anyone who wants a unit ready to go the moment the power drops, even if it's been sitting untouched since last hurricane season. All Pro Generators has supplied thousands of customers with dependable backup power since 2018, and our selection of propane power generators covers everything from smaller backup units to larger models built for whole-home or job site use.
Why Choose a Propane Backup Generator Over Gas or Diesel
Fuel stability is the biggest reason customers choose a backup generator propane setup over a standard gasoline unit. Propane stores indefinitely without breaking down, so there's no need to worry about old fuel gumming up a carburetor after months of storage between storms. It also burns cleaner than gasoline, which means less engine wear over time and fewer maintenance headaches. For homeowners in hurricane-prone regions who might only run a generator a handful of times a year, that shelf stability alone often justifies the switch to a propane back up generator.
Sizing a Propane Power Generator for Your Home or Business
The right size depends heavily on what you're trying to power. For average home backup, most customers do well with at least 8,000 watts, while a typical job site setup often runs closer to 4,000 watts. If you're running a whole-home standby system covering HVAC, well pumps, or larger appliances, it's worth sizing up rather than settling for the bare minimum; running a unit at its absolute limit shortens its lifespan and leaves no buffer if you add appliances later. A propane generator for a boat, RV, or off-grid cabin will have very different requirements than one meant to run an entire household.
Built for Storm Season and Everyday Reliability
Storms and power outages of any kind drive most of our sales, and hurricane season between June 1st and November 30th is when we see the highest demand for propane generators of every size. Because propane doesn't degrade in storage, a propane powered generator setup can sit ready in a garage or shed for months and still start reliably when a storm is approaching. We ship fast from our USA-based warehouses and our team has helped homeowners, business owners, and off-grid property owners size and select the right unit since 2018.
Frequently Asked Questions
How long can I actually store propane before it goes bad?
Propane doesn't have an expiration date the way gasoline does, and properly maintained propane tanks can hold usable fuel indefinitely as long as the tank itself isn't damaged or leaking. This is one of the main reasons buyers choose propane for infrequent, emergency-only use, since there's no need to cycle or replace fuel every few months like you would with a gas-powered unit. That said, it's still worth having your tank and fittings inspected periodically to make sure there's no corrosion or slow leaks developing over time.
How is a propane generator different from a standard gas generator?
A propane generator runs on stored propane rather than gasoline, which means it starts reliably even after long periods of inactivity and produces cleaner exhaust with less carbon buildup in the engine. Gasoline generators are often slightly less expensive upfront and can be quicker to refuel mid-outage if you have easy access to a gas station, but the fuel itself degrades over time and requires stabilizer additives if stored long-term. For anyone who wants a generator that's ready to run after sitting for a year, propane is generally the more dependable choice.
Do I need a large propane tank, or can I run the generator off a small tank?
This depends on the generator's fuel consumption rate and how long you expect to run it during an outage. Smaller portable units can often run for several hours off a standard 20-pound tank typically used for grills, while larger backup or standby generators are usually connected to bigger tanks, sometimes 100 gallons or more, for extended runtime. If you're planning for multi-day outages during storm season, it's worth calculating your expected hourly fuel usage against tank size before you buy, rather than guessing and running out mid-outage.
Will a propane generator actually be ready in time before a storm hits?
During hurricane season, timing matters. Overnight shipping is rarely possible with any retailer for generators of this size, since most manufacturers don't offer expedited freight and rush shipping costs can run several times the price of the unit itself. The safest approach is to order as soon as a storm system is being tracked in the Atlantic, rather than waiting until landfall is imminent, so the generator has time to arrive, get connected to your propane supply, and be tested before you actually need it.
