Built-In Grill Under an Awning or Covered Patio: Clearance and Vent Hood
Quick answer
A built-in gas grill needs at least 5 ft (Fire Magic) or 6 ft (Blaze) between the countertop and any overhead construction. If that construction is combustible, such as a wood-framed roof, both makers require a vent hood over the grill that is larger than the cooking area and moves at least 1200 CFM, and both say never to use the grill under unprotected combustible overhead construction. Under a noncombustible roof the hood is recommended, not required. A fabric awning is combustible overhead construction with nothing to carry a hood: the Sedona by Lynx hood manual needs a roof over the hood with at least 3 ft of weatherproof cover around it and a sealed metal duct through that roof. So a built-in grill belongs under a solid noncombustible patio cover, ideally with a hood, or under a wood-framed roof with one. It does not belong under a retractable awning.
A built-in gas grill needs at least 5 ft of clear height between the countertop and anything built overhead, by Fire Magic's instructions, or 6 ft by Blaze's. If that overhead construction can burn, both makers also require a vent hood over the grill. The hood must be larger than the cooking area and move at least 1200 CFM. Both say, in nearly the same words, never to use the grill under "unprotected combustible overhead construction."
A fabric awning is combustible overhead construction, and it has nowhere to hang a hood. So a built-in grill belongs under a solid patio roof, not under a retractable awning. The figures below come from two built-in grill manuals and two outdoor vent hood manuals, read in November 2026.
Built-in grill, overhead construction and vent hood
Four terms decide the answer, so here they are in plain words.
A built-in grill is a grill head with no cart. It drops into a cutout in a counter or island and is piped to the gas line. Blaze's 4-burner LTE2, for example, needs a cutout 30 5/8 in wide, 21 1/4 in deep and 8 1/2 in high. Because it cannot be rolled out from under a cover, where it sits is decided once, when the island is built.
Overhead construction is anything built above the grill: a patio roof, a ceiling, beams, a pergola or an awning. The manuals measure from the countertop up to its lowest part.
Combustible means it can burn. Wood is combustible. Steel and aluminum are not. Blaze says the call on whether a location counts as combustible "is made by the local fire marshal, building inspector or the local safety authority having jurisdiction." Wood beams, wood fascia and plastic panels are the parts to ask about.
A vent hood is a metal canopy with a fan, hung over the grill. It pulls smoke, heat and grease up and sends them outdoors through a metal duct. Its power is given in CFM, cubic feet of air moved per minute. Fire Magic says the hood "provides the protection for the combustible overhead construction." That protection is the whole reason the hood is required.
What the grill and hood manuals say
| Manual | Countertop to overhead construction | Under combustible construction | Under noncombustible construction | Other clearances |
|---|---|---|---|---|
| Fire Magic built-in gas grill quick start guide (REV 3) | "A minimum 5 foot clearance" | Hood required over the cooking surface, larger than the cooking area, minimum 1200 CFM; "DO NOT use this appliance under unprotected combustible overhead construction" | Hood "highly recommended" | Rear 4 in from a backsplash or noncombustible wall; RHP insulating liner in a combustible enclosure |
| Blaze LTE2 built-in gas grill use and care guide (BLZ-4LTE2, BLZ-5LTE2) | "A minimum 6 foot of clearance" | Hood required, larger than the cooking area, minimum 1200 CFM; "must not be installed under unprotected combustible overhead construction" | Hood "still recommended," since gas grills "produce a large amount of smoke" | 14 in from the sides and 16 in from the back to combustible material; 5 in behind for the lid |
| Sedona by Lynx outdoor vent hood (SVH36, SVH42, SVH48) | Not given by the hood | A custom canopy of combustible material at least 36 in above the cooking surface | A noncombustible canopy at least 30 in above the cooking surface | Hood 30 to 44 in above the cooking surface; edges 3 to 6 in past the front and sides of the grill; roof over the hood with 3 ft of weatherproof cover |
| Blaze 42 in vent hood (BLZ-42-VHOOD2) | Not given by the hood | Not addressed | Not addressed | No less than 36 in from cooking surface to hood; 36 to 40 in recommended |
Three things stand out. First, the grill makers measure from the countertop to the ceiling, and the hood makers measure from the cooking surface to the hood. Those are two different numbers, and a build has to meet both. Second, Blaze asks for a foot more height than Fire Magic. Third, neither grill maker lets the hood stand in for height. The 5 or 6 ft applies to all overhead construction, and the hood is an extra on top when that construction can burn.
Why you read both "never" and "it's fine"
Two answers circulate about grills under covered patios. One says never put a grill under a roof. The other says a built-in grill can go under any patio cover that is tall enough. Both are half right.
The "never" answer comes from portable grill manuals. Weber's US gas grill manual says not to use the grill "beneath overhead combustible construction," with no hood option at all. That rule, and the fire code's 10 ft rule for apartments, are set out in can you grill under an awning.
The "it's fine" answer comes from built-in grill manuals, which do allow a roof overhead. But they attach two conditions: the height, and a hood whenever the roof can burn. Leave out the hood and a wood patio roof becomes exactly the "unprotected combustible overhead construction" both makers forbid.
Why a fabric awning cannot carry a hood
A retractable awning is fabric on a roller, held out by folding arms. Its fabric is combustible and it sits overhead, so it is combustible overhead construction. The only way the grill manuals allow a grill under that is with a hood protecting it. An awning cannot take one, for reasons in the hood manual itself:
- It needs a roof. The Sedona hood "MAY NOT be installed on a Patio or Lanai area that does not have a roof over the Grill Hood." It wants at least 3 ft of weatherproof roof on every side not shielded by a wall.
- It needs framing. Sedona says to attach the hood "to the framing through the top and back, whenever possible," and to mount it on "a solid vertical surface." Awning fabric is neither.
- It needs a duct through the roof. The Sedona hood uses rigid metal duct only, run to the outdoors, with "all duct work and roof openings" sealed against water. An awning that rolls up cannot have a fixed duct through it.
- Awning makers forbid hanging things on it. SunSetter's manual says never hang items from any part of the awning except its own accessories, as covered in string lights on a retractable awning.
Retracting the awning does not fix this either. A rolled awning is still fabric on the wall, and a built-in grill against that wall sits right under it. A flame-retardant fabric does not change the answer: the manuals' word is combustible, and the guide to awning fire ratings explains why NFPA 701 does not make fabric noncombustible.
The heights, from the side
The hood also has an upper limit. Sedona says that above 44 in over the cooking surface, the hood's "smoke capture ability declines rapidly." Smoke also spreads as it rises, so its front and side edges should reach 3 to 6 in past the grill. Under a tall roof the hood hangs below the ceiling, with a duct cover filling the gap. Sedona's cover suits ceilings up to 10 ft, or 12 ft with its extension kit.
Worked example: one patio, three covers
Here is how the rules play out on one island. Nothing here was built or measured. It is the published figures, worked through.
Worked example
Suppose a 36 in high island against the back wall holds a Blaze LTE2 grill. Blaze wants 6 ft (72 in) from countertop to overhead construction. So the lowest part of any cover above must be at 36 + 72 = 108 in, or 9 ft, above the patio. With a Fire Magic grill the figure is 36 + 60 = 96 in, or 8 ft.
Cover A: a wood-framed patio roof with its beams at 8 ft 6 in (102 in). It passes Fire Magic's 96 in and fails Blaze's 108 in. Either way the roof is combustible, so a 1200 CFM hood larger than the grill is required. Sedona wants a combustible canopy at least 36 in above the cooking surface, and the hood 30 to 44 in above it.
Cover B: a solid aluminum roof at 9 ft (108 in). It passes both grills' heights. It is noncombustible, so both makers call the hood recommended rather than required. The side and back clearances to combustible material still apply: Blaze's are 14 in and 16 in.
Cover C: a retractable awning mounted at 10 ft. Height is not the problem; the fabric is. It is combustible overhead construction with no way to fit a hood, so the grill may not run under it, open or closed. The fix is to move the island out past the awning's front bar, plus Blaze's 14 in at the side or 16 in at the back. Or build a roof over the grill instead.
The same island under a wood pergola falls into case A if the pergola is roofed. An open-slat pergola has no roof, so it cannot meet Sedona's rule for a roof over the hood. Its wood slats are still combustible overhead construction, so without a hood the grill may not go under it. Pergola covers are compared in pergola awnings, and what a solid roof costs against an awning is in awning vs patio cover.
Which cover allows what
| Cover over the grill | Grill under it? | Hood | Height |
|---|---|---|---|
| Retractable or fixed fabric awning | No: unprotected combustible overhead construction | Cannot be fitted: no roof, framing or sealed duct path (Sedona) | Does not help; set the grill beyond the front bar |
| Open-slat wood pergola | No: combustible, and no roof for a hood | Sedona needs a roof over the hood with 3 ft of cover | Does not help |
| Wood-framed patio roof | Yes, with a hood | Required: larger than the cooking area, at least 1200 CFM; canopy 36 in above the cooking surface | 5 ft (Fire Magic) or 6 ft (Blaze) from countertop |
| Solid aluminum or steel roof | Yes | "Highly recommended" (Fire Magic), "still recommended" (Blaze) | 5 ft (Fire Magic) or 6 ft (Blaze) from countertop |
A metal roof with wood beams or wood fascia above the grill still has combustible construction overhead, since wood is combustible. The differences between aluminum and polycarbonate covers are in metal and polycarbonate awnings.
The duct and the power
A hood is only as good as its duct, and both hood manuals are strict about it. Sedona's 1200 CFM hoods discharge through a 10 in round outlet. Their duct run should not exceed 35 linear ft, with two 90 degree elbows, two 45 degree elbows and a cap. Each 90 degree elbow counts as 6 ft of duct, and each 45 degree elbow as 3 ft. The cap needs at least 78.5 sq in of open area, and Sedona says to use no damper of any kind.
The Blaze 42 in hood has two 8 in outlets. Blaze says to keep them as two separate pipes, each with its own cap rated 1000 CFM, because joined pipes set the two motors fighting. It allows no more than three 90 degree elbows and wants 24 in of straight pipe between elbows. Both makers rule out plastic and flexible duct, and both say never to end the duct in an attic.
The Sedona hood needs a 120 V supply on its own grounded branch circuit, with a 15 or 20 A breaker and GFCI protection. Plan the circuit when the roof goes up, not after.
Before you build the island
- Pick the grill first. Its manual sets the height. Fire Magic's quick start says to read the full installation manual as well, so get both.
- Decide what is overhead. If it is fabric, the island goes outside its footprint. If it is wood, budget for a hood and a duct through the roof.
- Measure from the countertop to the lowest part above. That means the beam, the fan or the light fixture, not the ceiling panels between them.
- Keep the sides clear. Blaze wants 14 in from the sides and 16 in from the back to combustible material, which includes wood posts and wood siding.
- Keep the propane apart. Blaze says never to store a spare cylinder in or around the outdoor kitchen. Where a tank may sit near an awning is covered in can you put a propane tank under an awning.
Blaze also says to keep the grill "protected from adverse weather, including rain and winds," because wind into the back of the grill can trap heat behind the control panel. That is the honest reason to want a roof over a built-in. The roof just has to be one the manual allows.
Where this answer stops applying
These are two grill makers and two hood makers. Other brands write their own figures, and if yours asks for more height or more CFM, use it. The Fire Magic figures come from its quick start guide, which points to a full manual that may add detail. These pages do not settle how the island itself is built. Fire Magic wants an insulating liner in a combustible enclosure. Blaze's guide says "non-combustible enclosure only," then says a few pages later that a combustible island needs an insulation jacket. Blaze notes that a permit may be required for outdoor kitchen construction. Fire Magic says a qualified service technician must do the install; awning permits and HOA rules covers how permits tend to work. Blaze sells its grills for single-family homes only. In an apartment or condo, the fire code's own 10 ft rule may apply first. Restaurants and other commercial patios are outside these home manuals, so start with restaurant awnings and the fire marshal. And the answer here is for gas grills. Charcoal and pellet grills, smokers and griddles each have their own manuals and are covered on their own pages, such as Blackstone griddle under an awning.
Key takeaways
- Built-in gas grills need 5 ft (Fire Magic) or 6 ft (Blaze) from countertop to any overhead construction.
- Under combustible construction both require a hood larger than the cooking area, at least 1200 CFM.
- Under a noncombustible roof the hood is recommended, not required.
- A fabric awning is combustible and cannot carry a hood, so a built-in grill does not go under it, open or closed.
- Hang the hood 30 to 44 in above the cooking surface (Sedona), and run rigid metal duct to the outdoors.
Frequently asked questions
How high does a patio roof need to be over a built-in grill?
At least 5 ft above the countertop for a Fire Magic grill and 6 ft for a Blaze, measured to the lowest part of the roof. On a 36 in counter that puts the roof at 8 ft or 9 ft above the patio.
Do I need a vent hood for a built-in grill on a covered patio?
Yes, if the cover is combustible, such as a wood-framed roof. Fire Magic and Blaze both require it there. Under a noncombustible metal roof both makers recommend a hood but do not require one.
How many CFM does an outdoor grill hood need?
At least 1200 CFM, by both the Fire Magic and Blaze grill manuals, and the hood must be larger than the grill's cooking area. Sedona's 36, 42 and 48 in hoods are all 1200 CFM models.
How high should an outdoor vent hood be above the grill?
Between 30 and 44 in above the cooking surface for the Sedona hood, and no less than 36 in for the Blaze 42 in hood, which recommends 36 to 40 in. Too low risks heat damage; too high and the hood misses the smoke.
Can I put a vent hood under a retractable awning?
No. The Sedona hood manual requires a roof over the hood with at least 3 ft of weatherproof cover, framing to fix it to, and a sealed metal duct through the roof. A retractable awning offers none of these, and SunSetter's manual forbids hanging items from its awnings.
Sources and further reading
- Fire Magic: Built-in outdoor gas grill quick start guide (REV 3)
- Blaze Outdoor Products: Use and care guide, gas grills BLZ-4LTE2 and BLZ-5LTE2
- Lynx Grills: Sedona by Lynx vent hood care, use and installation manual, SVH36, SVH42, SVH48
- Blaze Outdoor Products: 42 in vent hood manual, BLZ-42-VHOOD2
How we write our guides: figures are typical US ranges checked against manufacturer documentation, published standards and installer pricing. Read our editorial standards. Spotted an error or outdated detail? Request a correction.