Are Blackstone Grills Propane? | The Fuel Truth Before You Buy

Most Blackstone griddles run on propane from 1 lb or 20 lb cylinders, while select built-in models can switch to natural gas with a matching kit.

If you’re eyeing a Blackstone or setting one up for the first time, the fuel question is the one that can save you a return trip to the store. If you typed “Are Blackstone Grills Propane?” into a search bar, you’re in the right place.

The good news is simple: propane is the default for most models. The not-so-fun part is that propane, natural gas, hoses, and regulators aren’t mix-and-match.

This article clears up what Blackstone griddles use, how to confirm your exact setup fast, and how to pick a tank plan that fits your cooking style.

What “Propane” Means On A Blackstone Griddle

When a Blackstone is sold as propane (LP), the burner system is built to run at LP pressure through an LP regulator. That regulator connects to a propane cylinder and meters gas to each burner in a controlled way.

On a typical backyard unit, the hose screws onto a standard 20 lb tank valve (Type 1/QCC1). Many tabletop models can also run from a 1 lb cylinder with the right hose.

Why Propane And Natural Gas Aren’t Interchangeable

Propane and natural gas use different pressures and different burner orifice sizing. Feed a propane-only griddle with a natural gas line and you can get weak flames, poor heat control, or soot. Go the other way and gas flow can be wrong in the opposite direction.

So the rule is easy: match the fuel to the model, and match the parts to the fuel.

Which Blackstone Models Use Propane

Most of the popular outdoor griddles are propane out of the box. That includes many 22-inch, 28-inch, and 36-inch units sold with a cart, plus a lot of tabletop options meant for camping and tailgates.

Listings usually label this as “LP gas” or “propane.” If you see a hose and regulator that screws onto a tank, you’re looking at an LP setup.

How To Spot The Fuel Type On A Listing

• Fuel line: “LP,” “LP gas,” or “propane.”
• Connection style: tank-screw regulator (20 lb) or 1 lb cylinder threads.
• BTU rating: gives a rough feel for heat-up speed and fuel use.
• Burner count: helps with heat zones, not just total heat.

Blackstone Grill Fuel Options And Propane Setups

Even when the griddle is propane, you still choose how you’ll supply it. Your choice changes portability, cost per cook, and how often you’ll swap or refill.

20 lb Tank Setup

This is the standard patio setup. It’s refillable, widely available, and it feeds multi-burner griddles well, even during longer cooks.

1 lb Cylinder Setup

These small bottles are convenient on the go. They also cost more per pound of fuel. Many owners keep them as travel fuel or as a backup, then run a 20 lb tank at home.

Refillable 5 lb Or 10 lb Cylinders

If you travel often, a 5 lb or 10 lb refillable cylinder can feel like the sweet spot. It’s easier to lift than a 20 lb tank, lasts longer than 1 lb bottles, and still feeds a griddle steadily.

How To Confirm What Your Blackstone Uses In Two Minutes

You can confirm fuel type with a quick check on the unit itself.

1. Find the rating plate: often on the back, side panel, or under a shelf.
2. Read the fuel line: look for “LP” or “propane.”
3. Check the connector: a tank-screw regulator points to propane.
4. Match the manual: the manual lists the intended fuel and the correct hose/regulator parts.

Propane Parts That Make Or Break The Cook

Most “my Blackstone won’t get hot” complaints trace back to the gas path. A few parts control almost everything you feel at the cooktop.

Regulator And Hose

The regulator drops tank pressure down to the level the burners can use. If it trips into low-flow mode, you may get a stubborn low flame. A common reset is to turn every knob off, shut the tank, disconnect, wait a minute, then reconnect and open the tank valve slowly.

Stick to model-matched parts. Random regulators can change flow and make heat control feel jumpy.

Burner Orifices And Valves

Orifices meter gas into the burner tubes. They’re sized for the fuel and pressure the griddle was built for. That’s the mechanical reason conversions need specific parts, not guesswork.

Wind And Edge Heat

Crosswinds can steal heat and can even push flames around. Side wind guards and smart positioning can steady the flame and help the cooktop stay more even, especially at the edges.

Propane Hookup And Leak Check Steps

Getting a steady flame starts at the tank. A sloppy connection can waste gas, trip the regulator, or leave you chasing weak heat all afternoon.

1. Start with every knob off: burners off, then tank valve closed.
2. Hand-tighten the regulator: snug is enough; tools can damage the seal.
3. Open the tank valve slowly: a slow open helps the regulator stay in normal flow.
4. Do a quick leak check: brush soapy water on the tank connection and hose ends; bubbles mean a leak. Shut the tank and re-seat the connection before lighting.
5. Light one burner first: then bring other burners up as needed for your heat zones.

After cooking, close the tank valve first and let the burners burn off the gas in the line, then turn the knobs off. It’s a simple habit that keeps the hose from sitting under pressure between cooks.

Table: Common Propane Setups And What To Expect

This table compares popular propane setups in a way that’s easy to decide from.

Setup	Best Fit	Trade-Off
20 lb refillable tank	Home patios, frequent cooks	Heavier to move
1 lb disposable cylinder	Short trips, backup fuel	Highest fuel cost
5 lb refillable cylinder	Camping, tailgates	Needs a fill station that can fill it
10 lb refillable cylinder	Longer travel cooks	Takes more room than 5 lb
Two-tank rotation (20 lb)	Hosting, long cook days	Extra upfront tank cost
Tank exchange cages	Convenience-first buyers	Often less propane per swap
Refill station by volume	Lower ongoing fuel spend	Requires a nearby refill spot
Tabletop hose to 20 lb tank	Portable griddle owners	Extra hose to pack

When Natural Gas Makes Sense

If you want a permanent hookup at home, natural gas can be appealing. You skip tank swaps and you can cook as long as you want, as long as the griddle and parts are meant for natural gas.

Some Blackstone built-in models are designed for conversion, and Blackstone sells a kit for those units. The product page also notes that not all griddles can convert. Blackstone Natural Gas Conversion Kit is the official listing for one such kit.

What A Conversion Kit Changes

A proper kit typically provides natural gas orifices and a hose/quick-connect fitting, plus instructions that match the model family. The orifices are the heart of the change, since they control gas flow at the burner.

For the broader standard that governs fuel gas piping and appliance connections in many U.S. installs, NFPA publishes NFPA 54. The code listing page is here: NFPA 54: National Fuel Gas Code.

How Long A Propane Tank Lasts On A Blackstone

Tank life depends on total burner output, how hot you run the plate, wind, and outside temperature. High-heat searing burns more fuel than low heat used to toast buns and hold food.

Propane contains about 91,500 BTU per gallon. A full 20 lb tank holds about 4.7 gallons. If your griddle is rated around 60,000 BTU, running wide open could drain a tank in about 7 hours of burner-on time. Most real cooks cycle heat up and down, so you’ll usually get several sessions from one tank.

Ways To Spend Less Propane Without Cooking Slower

• Preheat on medium-high, then drop to the lowest setting that holds your target surface temperature.
• Cook in zones: one hot area, one medium area, one cooler holding area.
• Block wind at the sides with your setup or with compatible guards.
• Keep the cooktop seasoned so food releases quickly and you spend less time re-heating after scraping.

Table: Propane Problems And Fast Fix Checks

If your griddle is propane and it starts acting odd, this table helps you narrow the cause fast.

Symptom	Likely Cause	First Check
Weak flame on all burners	Regulator in low-flow mode	Reconnect and open tank valve slowly
One burner won’t light	Debris in burner tube or orifice	Inspect and clean per manual
Flame blows out	Crosswind hitting burners	Reposition or add guards
Soot under the cooktop	Fuel-air mix off	Check burner alignment and ports
Gas smell at the tank	Loose fitting or worn seal	Hand-tighten and do a soapy water leak test
Tank frosting	High draw in cold conditions	Use a larger tank or lower full-blast time
Heat drops after adding food	Too many burners on high	Use zones, then ramp one burner up

Buying Tips That Prevent A Fuel Mismatch

When you’re buying, the fuel decision is mostly about your routine.

Match Size To Your Usual Cook

A 36-inch griddle shines for big breakfasts and parties. If you cook for one or two most nights, a smaller size can feel easier to heat, easier to clean, and cheaper to feed with propane.

Pick A Tank Plan Before The First Cook

If you hate running out mid-cook, keep a second tank. If you travel, plan your hose setup and pick a cylinder size you can lift comfortably. If you cook at home and you’ve got a refill station nearby, refilling often costs less than exchanging.

Answering The Real Question

So, are Blackstone griddles propane? In most cases, yes: they’re built for LP gas and connect to common propane cylinders. If you want natural gas, shop for a model built for it or one that Blackstone lists as convertible with the right kit. Once your fuel and parts match, the griddle behaves the way it should—steady flames, predictable heat, and less hassle between you and dinner.