Unleash bold, authentic stick-burner smoke flavor your pellet grill simply can’t deliver on its own. This upgrade transforms your pellet grill into a true wood-fired smoker, giving your meats deeper smoke, richer bark, and competition-level results—without giving up the convenience of pellets.
Designed to fit most pellet grills with a centered burn pot and a 19-1/2″ diameter barrel, it’s the fastest way to take your barbecue from good to legendary.
$99.99
Made in the USA
The Heavy D Stick Burning Heat Diffuser from Smoke Daddy Inc. is the ultimate upgrade for pitmasters who want real stick-burner smoke without giving up the convenience of a pellet grill. This diffuser transforms your existing pellet grill into a true wood-burning smoke machine, delivering deeper smoke flavor, better bark, and competition-level results.
Designed to fit most pellet grills (see dimension image and compatibility list below), the Heavy D allows you to burn full-size wood splits or large wood chunks directly over the burn pot—producing rich, clean smoke that pellets alone can’t match. A dedicated version is also available for Pit Boss grills with curved drip pans.
Heavy-Duty 10-Gauge Steel Construction – Even heat distribution with zero warping
Perforated Smoke Chambers – Allows wood to smolder using the burn pot flame
Removable End Plate – Prevents wood from fully igniting and spiking grill temperatures
Authentic Stick-Burner Smoke Flavor – Uses full wood sticks or large chunks
2–3 Hours of Burn Time per load
Cold-Rolled Steel (0.145″) – Built for extreme heat and long-term durability
Made in the U.S.A.
Designed for grills with an internal depth of approximately 19-1/2″
Fits most pellet grills with a centered burn pot
Traeger Timberline models must use the Designed for Pit Boss version
Always reference the compatibility list below to confirm proper fitment
Temperature Management Note:
Due to the additional heat produced by burning real wood, you may need to crack the grill lid slightly to maintain your target temperature. Once the wood has burned completely, the lid can be closed and operated normally.
This product is designed to work with most pellet grills that meet the following requirements:
Pellet grills featuring a centered burn pot
Grills with an internal round barrel diameter of approximately 19-1/2″
Standard horizontal barrel-style pellet grills
Most popular backyard pellet grill brands with traditional centered burn pot layouts
Pellet grills with the auger arm mounted underneath the smoker barrel
Vertical pellet smokers
Flat-top, cabinet-style, or non-barrel grills
Grills with flush-mounted burn pots
Pit Boss Titan
Pit Boss Copperhead Smokers
Pit Boss Lexington Onyx 500
Pit Boss Savannah (flush-mounted burn pot models)
Pit Boss 1600 Competition
Pit Boss 1250 Competition
Pit Boss 1300 PS4
Pit Boss 1150 PS2
Pit Boss KC Combo
Austin XL Pit Boss 1000
Traeger Century
Recteq 590 / Deck Boss
Important Fitment Notice:
Due to variations in grill design between manufacturers and model years, we strongly recommend measuring your grill’s internal barrel diameter and confirming burn pot placement before purchasing.
If you are unsure about compatibility, call Smoke Daddy Inc. at 847-336-1329 and we’ll be happy to verify fitment for your specific grill before you order.
Traditional pellet grills rely on compressed sawdust pellets, which produce a lighter, cleaner smoke. While efficient, pellets can struggle to deliver the deep smoke profile and bark development associated with offset stick burners.
The Heavy D Stick Burning Heat Diffuser introduces real wood combustion directly into the cooking process. By allowing full-size wood sticks or large chunks to smolder slowly over the burn pot flame, it generates richer smoke compounds, including those responsible for deeper smoke flavor, better smoke ring formation, and enhanced bark texture.
This method replicates the smoke characteristics of a true stick burner—without constant fire management—giving you the best of both worlds: pellet grill convenience with authentic wood-fired results.
For custom smoker builds, we offer 3″ heat diffuser risers designed to position the heat diffuser 3 inches above the burn pot. This added clearance allows heat to disperse more evenly throughout the cooking chamber, improving temperature consistency and overall performance.
Constructed from high-quality 10-gauge steel, these risers are built for strength, durability, and long-term use in demanding smoking applications.
Attaching a Heat Diffuser Download (PDF)
| Weight | 15 lbs |
|---|---|
| Dimensions | 13 × 11 × 6 in |
| Style | Standard (5-3/4" Height), For the Pit Boss Grill (5" Height) |
6 reviews for The “Heavy D” Stick Burning Heat Diffuser
Steve (verified owner) –
The Heavy D is a game changer!! If you want to add offset flavor to your pellet cooker this is a must buy!!
Raymond Cross (verified owner) –
Made a huge difference with my Pitts & Spitts Maverick 1250. Certainly improves the smoke flavor and bark development. Well worth the money.
Martin (verified owner) –
I’ve been using this for years and it really adds better smoke to your cooks. I wouldn’t use a pellet grill without one anymore.
Richard Dobrow (verified owner) –
Great item to improve the smokiness of your BBQ on pellet grill. Works exactly as its designed too, very pleased!!
Sam Johnson (verified owner) –
The Heavy D has changed my perspective: I’m no longer selling my workhorse Traeger 780 Pro! After just one cook, smoked chicken thighs for an hour and fifteen minutes with one apple chunk, I brought in the finished thighs and was immediately met with, “That’s smoked chicken!” I haven’t had smoke flavor that good since my Big Green Egg. I could not recommend the Heavy D more!
Charles Walker (verified owner) –
This works awesome. Much better smoke than the pellets alone. It’s also heavy gauge steel and well made. I’d recommend using longer splits rather than wood chunks with lava rock. I’ve tried both and the longer splits are just easier plus they generally last longer.