Gas, Propane & Dual-Fuel
Last verified: September 2026
Everything you actually need to know, in plain English - no jargon, no rabbit holes. If you'd rather skip the reading and just have someone help, my number is (330) 200-8042.
Gas, Propane & Dual-Fuel
When you shop for a generator, one of the first choices is what it burns — gasoline, propane, or a dual-fuel unit that runs on either. The short version: gasoline is easy to find and gives the most power but goes stale in storage; propane keeps for years and is safe to leave on the shelf; and a dual-fuel generator lets you switch between them by turning a valve, which is a real comfort when a storm makes one fuel hard to get. Here's the plain-English guide to choosing and switching fuels, with a printable, 29-page version up top if you'd like the full walk-through.
Common Questions
1 What's the difference between gasoline and propane for a generator?
Gasoline is easy to find and gives a generator the most power, but it goes stale in a few months and needs fuel stabilizer and rotating. Propane — the same tanks as your grill — stores for years without going bad and burns cleaner, though it gives a little less power (often around ten percent less) and can be sluggish to start in bitter cold. Which is better depends on how you'll use the generator.
2 What does "dual-fuel" mean?
A dual-fuel generator runs on either gasoline or propane, and you choose which by turning a small selector valve — one way for gas, the other for propane. It runs on one fuel at a time, not both at once. When one runs low, you stop the engine and switch to the other. It's the same machine either way; the valve just tells it where to draw fuel from.
3 Why is a dual-fuel generator good for storms?
Because it gives you two ways to keep running. In a bad outage the gas stations may be down too — their pumps need power — so gasoline can be hard to get right when you need it most. With a dual-fuel unit you simply switch to a propane tank, one of the spares from the grill, and keep going. Whichever fuel you can get, the generator will take it.
4 Does a generator really make less power on propane?
A little, yes. The same generator typically makes somewhat less power on propane than on gasoline — folks often see something like ten percent less. For everyday outage jobs like the fridge, lights, and phones you'd never notice. It only matters if you're running right up near the generator's limit, where gasoline gives you a touch more headroom.
5 Can I run a generator off my home's natural-gas line?
Some units, called tri-fuel, can run on natural gas — and it never runs out because it flows through the pipe. But connecting a generator to your home's gas line is not a do-it-yourself job: it takes a licensed professional to add the proper fitting and shutoff, installed to code with a permit. It's a planned project, not something to rig up the day a storm arrives.
6 Which fuel should I choose?
Match it to how you'll use the generator. If it's mostly backup that sits and waits, propane's long shelf life is a gift. If you'll use it often, like camping, gasoline is simplest. If you're in storm country — as most of us in Northeast Ohio are — a dual-fuel unit gives you the flexibility to use whichever fuel you can get. Not sure? Call and we'll sort it out.
Want a Hand With Yours?
Picking a generator, setting it up, and learning to run it safely is one of my most-requested visits. I bring the patience and the know-how - you keep your seat. We'll match a unit to your home, set it up right, walk through starting it and staying safe from carbon monoxide, and get your internet, TV, and devices happily back on. $99 flat, and every visit is 30-day come-back-free. (330) 200-8042.
Would you rather I just do this for you?
No shame in it — plenty of folks would rather hand it off, and that's what I'm here for. I'll come to your home, set it up right, and make sure it's working before I leave. Flat $99 per visit — no jargon, no upsell, and every visit is 30-day come-back-free.
Not a hardware job? I can often fix it remotely for $49 — a secure screen-share, up to 2 hours, that you watch the whole time and can end whenever (included free for $39/mo Support Plan members, and it counts toward the $99 if it turns out I need to come out).