Most smokers commit to one fire. Gas cabinets offer a knob, and charcoal cabinets offer flavor and fiddling.
The Masterbuilt 30-inch Dual Fuel Propane and Charcoal Smoker, model MB26050412, refuses to choose. It runs a propane burner or a pan of briquettes in the same vertical box. At $249.99, it costs about what a single fuel cabinet does.
Any smoker review of it starts from the obvious question. A box built for two fuels shares one firebox, one bowl and one damper. So what does each fuel give up to make room for the other?
First Impressions of the Masterbuilt 30-inch Dual Fuel Smoker
It looks like a tall black locker on splayed legs. Two doors stack on the front. A big one covers the racks, and a short one sits below. A round gauge sits on the upper door.
The gas hardware hangs on the left side. A regulator and hose run down to a control panel at the base. That panel carries a single dial and an orange igniter button.
Open both doors and you can read the whole design top to bottom. Four chrome racks fill the upper chamber. Below them sits a porcelain water bowl. Under that, behind the small door, is the fuel compartment.
Masterbuilt’s own photos show a black pan of briquettes sliding through that lower door. That pan is where charcoal goes, right where the propane flame works on gas days.
A first propane cook feels almost like using an oven. Press the button, turn the dial, and watch the needle climb. Chicken thighs come out evenly bronzed with a gentle smoke.
Key Features of the Masterbuilt 30-inch Dual Fuel Smoker
The features split into two groups. Some serve the gas side, some serve both, and very few serve charcoal alone.
- One 15,400 BTU stainless steel burner. Every propane cook starts from this one flame, low in the box. This is the heat source for every propane cook.
- Push-button igniter. Masterbuilt pitches the button as the way to light fuel. On gas days, it is a one handed start.
- A front dial on the gas valve. It sets flame height. It does not read or hold a target heat.
- Door-mounted gauge. This is your only window into cabinet heat. The door itself is solid steel.
- Porcelain-coated flame disk bowl. Masterbuilt says it lets flame reach the wood chips. It also shields the burner from dripping grease.
- Porcelain-coated chip tray and water bowl. The water bowl adds moisture and catches drippings. Both lift out for cleaning.
- Coal Door. The short lower door opens onto the fuel compartment. Chips and briquettes go in here while the racks stay sealed above.
- Multiple Vents or Dampers. An adjustable air damper handles smoke control. It is the one airflow lever for both fuels.
- Locking latch on an insulated body. The maker describes the walls as fully insulated. A lockable latch secures the upper door.
- Cool touch wire handles. Both doors open by wire grips that stay comfortable to hold.
- Type 1 regulator and hose. It connects to a standard propane cylinder, which you supply.
Notice what the list lacks, because it shapes every charcoal cook. There is no digital controller, no window and no separate charcoal grate. Everything charcoal uses was already there for gas.
On propane, this cabinet is easy to drive. A 15,400 BTU burner under a stacked box of racks has more than enough to climb. The work is holding it low. You do that by nudging the dial and watching the door gauge.
Neither fuel comes with a published low or high setting. That leaves real numbers to your own gauge and a good probe. Wind and cold change the dial setting you need, and only you can correct it.
Charcoal mode is where the shared design shows. Briquettes sit in a pan over the burner area, and the single damper meters the air.
A dedicated charcoal cabinet usually gives you an intake and an exhaust to balance. Here there is far less to work with. Heat follows the coals more than your hand.
This review carries no BTU per square inch figure, and that is deliberate. The burner heats a stack of four racks, not one grate. The rack area also appears two ways, 730 and 717 square inches. Dividing either would describe a grate this smoker does not have.
Expect a different rhythm on each fuel. On gas, you check the gauge every hour or so and leave it. On charcoal, you hover near the damper for the first stretch until the coals settle.
Food tells the story plainly. Ribs and pork butt come out moist, helped by the water bowl. Charcoal adds a deeper, rounder smoke than chips over gas. You earn it with more attention.
Build, handling and durability
The cabinet is painted steel, which Amazon lists as alloy steel. At 59 pounds it feels solid enough on its four legs. Lock the big door and its seam stays tight, with little smoke escaping.
The two door layout is the best piece of design here. It is also the one feature that truly serves charcoal. Feeding fuel through the bottom spares the food from a blast of cold air. Over a twelve hour brisket, those saved openings add up.
Durability is the weak spot. Masterbuilt backs the whole smoker for just 1 year. An igniter, a regulator and a painted box all live outside. Keeping rain off the steel is the owner’s job from the first week.
Size needs a careful look, since the sources disagree. The Amazon table lists 43.5 inches tall, 28.5 wide and 20.5 deep. The maker’s artwork prints 37, 19 and 17. Plan around the larger set, which likely includes the regulator and handles.
Running costs, upkeep and value
Running costs depend on which fuel you pick that day. Propane is the cheaper habit for a weeknight pork tenderloin. You keep a filled cylinder hooked up, and the burner sips through a long cook.
Charcoal costs more per session and asks more of you. Lighting briquettes takes a chimney or a starter, plus time before the cabinet settles. You will also be emptying ash from the fuel pan afterwards. Wood chips are the small constant in both modes.
Cleaning is mostly lifting things out. The water bowl, chip tray and flame disk bowl are all porcelain coated. They rinse clean with a soak and a brush.
The chrome racks are another matter. Plated wire scrubs clean when new but will not last like stainless. Once the chrome flakes, replacement racks are the fix. Expect smoky residue on the inner walls too, which needs a wipe every few cooks.
The price is the strongest argument. Both Masterbuilt and Amazon asked $249.99 when we checked in September 2026. Two fuels for one price is rare at this level. You give up refinement, not capacity.
Possible Masterbuilt 30-inch Dual Fuel Smoker Complaints
- Charcoal control is thin. Both fuels share one damper and one firebox. On charcoal, heat swings with the coals, and you correct it by hand. Small, frequent damper moves and a probe thermometer help most.
- The warranty is short. One year is little cover for an outdoor gas appliance. File the proof of purchase somewhere safe, and cover the cabinet between cooks.
