Blow fits charcoal cookers where you can control the air coming in. Kamado: no drilling. Kettle, bullet smoker (WSM) and drum: clips into an existing air opening if your cooker has an accessible one, otherwise one 1¼" hole with a flat surface behind it. Charcoal only. Pick yours below.
Pick your cooker
No drilling.
Use the Large or Medium plate in the box over your bottom draft door, then snap Blow on with the spring clip.
Compact kamados can mount straight onto the metal draft door.
Drilling? Through the thin steel wall in the bottom intake area, below the charcoal grate. You supply the hole saw or step bit.
Needs a flat surface behind the hole, so a pipe fitting or raised collar will not hold the clip. The hole's centre must be at least 4" above the ground.
A spring clip with three legs, and a wall to catch on.
The clip passes through the hole, and its legs spring open against the flat back of the wall. That holds Blow.
The outlet: the gasket and the three-leg spring clip.
Seat the two bottom legs
Slip the clip's two bottom legs through the hole.
Thumb the third leg in
Push the top leg through with your thumb. All three legs must go through, not just two.
They spring open behind the wall
All three legs open and pull the gasket tight against the cooker. Give Blow a gentle twist, ports down, and check it sits firm.
The rule that decides fit: a hole for the legs to pass through and a flat surface right behind it to catch on. Thin sheet metal (a kettle bowl, a WSM body, a drum wall) is ideal. In a pipe, a raised collar or a thick raised mounting point, the legs have nothing to grip, whatever the hole size.
Before the first cook, fit the face gasket and clip to Blow. The Blow quick start guide and manual show how.
Blow also has a damper, a disc on its air intake that you turn. Open it to cook, and close it after to shut off the air.
Cooker by cooker
Check yours.
No drillingPlates in the box
Kamado
Two stainless plates come in the box: Large (about 3½ × 3 in, 90 × 76 mm) and Medium (about 3⅛ × 2¾ in, 79 × 70 mm). Choose the one that sits best over your bottom draft door.
Place the plate over the draft door opening.
Snap Blow onto the plate with the spring clip.
Compact kamados can skip the plate and mount directly onto the metal draft door. Foil tape closes any small gaps.
Blow sticks out from the cooker, with its ports facing down.
Blow on a kamado: plate over the draft door, no drilling.
Blow on a kamado.
Accessible opening, or one 1¼" holeHole saw only if you drill
Kettle
Pick a spot on the lower bowl, below the charcoal grate, clear of the ash sweep and away from the kettle's legs so Blow has room to hang.
No accessible air opening? Drill one 1¼" (32 mm) hole with a hole saw or step bit. The bit sets the size, so no template is needed.
Seat the clip legs through the hole, as shown above.
Once Blow is on, move the ash sweep through its full travel to check it still clears.
Close off the other bottom vents with the foil tape.
Wear eye protection and watch for sharp edges when drilling.
Blow on a kettle, mounted through a 1¼" hole below the charcoal grate.
Accessible opening, or one 1¼" holeHole saw only if you drill
WSM and similar bullet smokers
On a WSM, Blow can mount at a bottom vent, with the other vents covered by the foil tape in the box. If your vent isn't accessible, drill one 1¼" hole. The charcoal bowl is thin sheet metal, which suits the clip.
Pick a spot on the charcoal bowl, level with the bottom vents, on plain wall beside one of them. That keeps the hole below the charcoal grate.
Stay outside that vent's sliding cover, so the gasket sits on flat wall, and keep away from the legs, so Blow has room to hang.
No accessible air opening? Drill one 1¼" (32 mm) hole with a hole saw or step bit.
Seat the two bottom clip legs through the hole, then push the third through with your thumb.
Close and foil-tape all three bottom vents so Blow controls all the intake air.
Wear eye protection and watch for sharp edges when drilling.
Blow on a bullet smoker.
Accessible opening, or one 1¼" holeHole saw only if you drill
Drum
A drum's thin steel wall gives the clip a flat face to catch. Pick a spot in the bottom intake area, below the charcoal grate.
Blow's body reaches about 2⅝" below the hole's centre, so put the centre at least 4" (100 mm) above whatever the drum stands on. Drum flat on the ground with a low intake? Raise it on a stand or casters first.
No accessible air opening? Drill one 1¼" (32 mm) hole with a hole saw or step bit.
Seat the two bottom clip legs through the hole, then push the third through with your thumb.
Don't mount through an existing pipe fitting or raised collar at the intake. The legs need a flat wall behind the hole.
Foil-tape any other intakes so Blow controls the air.
Blow on a drum, mounted through a 1¼" hole in the bottom intake area.
Every cooker
Close off the other vents.
Blow should be the only way air gets in. Foil-tape all the other intakes. Start the top vent at about a pencil-width and adjust after your first cook.
Why it matters
Any open intake is an air leak: air gets in that Blow doesn't control, so it can't hold your temperature. Running hot with the other vents closed? Look for a leak.
Before each cook
Open Blow's damper. Close it when you finish cooking: that is what stops air reaching the fire.
What about the hole when Blow is off? On a kettle, bullet smoker or drum, the high-temperature foil tape in the box closes it.
The checklist
What is in the box, and what you bring.
In the Blow box
Blow, the fan, with its mounting pack: gasket, spring clip, hex nut and screw
Hub-link cable (1.5 m)
USB-C to USB-A cable (1.5 m)
Two stainless kamado plates (large and medium)
High-temperature foil tape
Blow quick start guide
Thank-you card
Blow Forge adds the V Forge Set, with the V Forge WiFi Hub and Wired Ambient Probe that Blow needs. Buying the fan alone? It runs on the hub and Wired Ambient Probe from your V Forge Set.
You supply
A USB charger or power bank for Blow, 5V/2A or higher recommended. A lower-rated source works, but the fan may not reach full speed. A wall charger is safest overnight: some power banks switch off when the fan runs gently.
Power for the hub on long cooks. The V Forge WiFi Hub runs about 14 hours on battery and keeps running while it charges, so it can stay plugged in for long cooks.
A 1¼" hole saw or step bit, only if your kettle, WSM or drum has no accessible air opening.
A charcoal cooker with an air intake you can control.
No charger comes in the box.
The one hard no
Not for gas or pellet.
They already manage their own heat, so a fan adds nothing. V Series sets still work on gas, charcoal, pellet and in the oven, and the V Forge Set reads your cooker's temperature at the grate on any fuel.
