You’ll get reliable, no-nonsense smoking with the Masterbuilt 40-inch ThermoTemp propane smoker; it heats fast, holds steady up to 375°F, and the push-button ignition makes starts painless. Four chrome racks give 960 sq in so you can batch-cook dozens of chickens, ribs, or pork butts without crowding. The insulated vertical body, removable water bowl and woodchip tray simplify temp and smoke control plus cleanup. There are trade-offs in warranty and portability, and more details follow below.
Some Key Takeaways
- 960 sq in cooking area across four racks handles large batches like 16 chickens, six turkeys, or eight pork butts.
- ThermoTemp propane system heats quickly and holds steady up to 375°F with simple knob and analog thermostat controls.
- Adjustable air damper, woodchip tray, and removable water bowl let you tune smoke intensity and humidity for consistent results.
- Sturdy alloy-steel exterior, insulated vertical body, and removable components simplify cleaning and improve heat retention.
- Drawbacks: 92 lb weight limits portability and the 1-year limited warranty is shorter than some competitors.
Quick Verdict and Who This Smoker Is Best For
Although it’s a large, gas-powered unit, the Masterbuilt 40-inch ThermoTemp delivers straightforward, roomy smoking for backyard cooks who want convenience over fiddly controls. You’ll appreciate its 960 sq in capacity, four racks, and simple push-button ignition that make batch smoking efficient. It’s beginner friendly portability in practice: you can move it short distances despite a 92 lb weight, and setup’s intuitive. If you prioritize compact backyardability, insulated vertical design and removable trays simplify cleanup and daily use. Choose this smoker if you want predictable, no-nonsense performance, large capacity, and minimal learning curve rather than advanced customization. Our shop specializes in gas grills and accessories for outdoor cooking enthusiasts, so you can find complementary gear to enhance your smoking setup.
How the ThermoTemp Propane System Performs (Temperature, Heat-Up, Smoke Control)
If you value straightforward operation, you’ll find the ThermoTemp propane system delivers consistently reliable heat and easy smoke control. You’ll hit setpoints quickly; knobs and analog thermostat keep adjustments simple and steady, producing consistent temps across cooks up to the 375°F cap. Expect a rapid heat up from cold thanks to efficient burner placement and insulated vertical body. The adjustable air damper and woodchip tray let you fine-tune smoke intensity without fuss, while the removable water bowl stabilizes humidity and temperature. Overall, control is predictable and repeatable—you’ll spend less time babysitting and more time dialing in flavors. For safe and convenient fueling of your smoker, remember to use properly rated propane tanks and compatible connectors.
Cooking Capacity and Real-World Results (Racks, Chickens, Ribs, Pork Butts)
You can load up the 40-inch ThermoTemp with serious quantity without sacrificing even heat: four chrome-coated racks give you 960 sq in of cooking area, enough for up to 16 whole chickens, six turkeys, eight pork butts, or eight racks of ribs in a single run. You’ll appreciate the rack spacing for taller cuts—adjustable clearance handles brisket and butts without crowding. In tests, chickens browned evenly and ribs developed consistent bark across levels. Pork butts hit pull-ready tenderness with predictable yield estimates around 35–40% after trimming and cooking. Overall, capacity meets claims and delivers repeatable, usable results. Pellet grills are popular for delivering consistent temperature and smoky flavor, making them a favorite for many outdoor cooking enthusiasts and backyard pitmasters pellet grilling.
Build Quality, Convenience Features, and Ease of Cleaning
When you examine the ThermoTemp’s construction, the solid outer alloy-steel shell and insulated vertical body immediately communicate durability and heat retention; the inner aluminum lining keeps weight manageable while resisting corrosion. You’ll appreciate the insulation integrity during long smokes—temperature swings stay minimal and the lockable door latch plus viewing window add control without heat loss. Convenience features like push-button ignition, removable water bowl and woodchip tray simplify operation and cleaning. Maintenance access is straightforward: panels and trays pull out easily, chrome racks slide free, and smooth interior surfaces wipe down quickly. Overall, thoughtful engineering reduces upkeep time. For those who store their smoker outdoors, a durable grill cover can further protect the unit from the elements and extend its lifespan.
Final Pros, Cons, and Buying Advice (Warranty, Price Considerations, Alternatives)
Having covered build quality and ease of cleaning, let’s summarize what really matters before you buy: the ThermoTemp offers sturdy construction, straightforward operation, and useful smoke-control features that justify its place for serious backyard smokers. Pros: large 960 sq in capacity, easy push-button ignition, adjustable damper, removable trays. Cons: 1-year limited warranty limits long-term peace of mind; weight and size reduce portability. For warranty comparison, check competitors offering extended support or longer coverage. Negotiate on price—look for promotions and consider price negotiation. If propane isn’t ideal, evaluate alternative fuels and similar electric or charcoal alternatives. For those who cook outdoors frequently, consider having essential propane adapters on hand to ensure compatibility and convenience.
Some Questions Answered
Can I Use This Smoker With a Natural Gas Hookup?
No — it’s designed for propane and won’t safely run on natural gas without modifications. You’ll need approved conversion kits and to confirm regulator compatibility with natural gas. Also verify local pressure requirements and that the valve and orifices match natural gas specs. Have a qualified technician perform conversion and pressure testing. Using natural gas without proper conversion voids warranty and creates safety risks, so don’t attempt improvised changes.
Does It Require Any Assembly Out of the Box?
Yes — it needs some assembly out of the box. You’ll spend time on initial setup installing the racks, water bowl, woodchip tray, door latch and attaching legs/wheels. Tools required are minimal: typically a wrench and screwdriver (often included hardware). Follow the manual for seal and burner checks, then test for leaks and proper ignition. The process is straightforward, but take 30–60 minutes to confirm safe, correct setup.
Are Replacement Racks and Parts Available From Masterbuilt?
Yes — you can get replacement shelves and parts directly from Masterbuilt. You’ll find replacement racks, accessory kits (like drip pans, woodchip trays, and thermostats), and other components through Masterbuilt’s parts store or authorized dealers. Check model MB20051316 when ordering to make certain fit. You’ll want to confirm part numbers and warranty coverage; some items are sold individually while others come bundled in accessory kits for convenient replacement and upgrades.
How Much Propane Does a Typical 8-Hour Smoke Consume?
You’ll typically use about 1 to 2 pounds (0.5–1 gallon) of propane for an 8-hour smoke, depending on ambient temperature and how often you open the door. Estimate propane consumption by checking your burner’s BTU rating and dividing by BTU efficiency: a 20,000 BTU burner running continuously consumes ~160,000 BTUs in 8 hours, ~4.5 gallons if efficiency’s low; with better BTU efficiency you’ll need less. Monitor tank gauge for accuracy.
Is Indoor or Garage Use Safe With This Smoker?
No — you shouldn’t use this smoker indoors or in a garage. Propane combustion produces carbon monoxide and other fumes; using it inside risks buildup without proper ventilation. You’d need industrial-grade ventilation requirements, carbon monoxide detectors, and cleared combustion air to approach safety, which most homes and garages don’t provide. Use the smoker outdoors on a stable, non-combustible surface, away from overhangs and flammable materials for safe operation.
