Flames Rolling Out of the Pizza Oven Mouth or Chimney
Flames coming out of pizza oven openings means fire past the places it belongs: rolling out of the mouth toward a canopy, showing behind the control panel, burning on a greasy deck, or roaring from the chimney top.
Mon–Sat, 8am–8pm
- Gas, fire or smoke at the oven
- 5 questions that narrow it
- 6 causes, cheapest first
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Gas smell? Burner off, gas shut, step outside
Flame outside its place is an emergency until it settles. Gas closed if safely reachable, people back, 911 if it reaches a canopy, a roof or the building or keeps going. After it is out and cold, the oven stays unfired until the flue, the burner and the shields have been inspected.
What it
usually means.
In a working pizza oven the fire has a home. In a wood-fired dome it lives at the back or the side of the floor and its flame licks across the ceiling before the heat and smoke leave through the flue at the front. In a gas oven the burner flame stays in its channel under or beside the stone. When flame escapes, something upset that balance. A fire built too large pushes a tongue of flame out of the mouth and up into the canopy or the soffit above it. Creosote baked into a flue can light and turn into a chimney fire, heard as a roar and seen as sparks from the cap. Delayed ignition on a gas burner can puff flame out around the panel, and years of flour and grease on a deck can catch. The response is the same for all of them: close the gas if it can be reached safely, keep everyone well back, and call 911 if flame reaches a canopy, a roof, the building or will not settle. Water thrown on a hot floor or a grease flare does more harm than good, and nobody goes up on a roof to look at a chimney.
The 6 causes, cheapest first
Answer these first
Is the flame coming out of the mouth, from the chimney top, or from behind the panel or under the deck?
Was a large load of wood just added, or was the door pushed shut on a live fire?
When was the flue last swept, and does the oven burn wood daily?
On a gas oven, was there a pause and a whoomp before the burner lit?
Now that it has settled, is anything above the oven scorched, blistered or melted?
Check these
before you book.
Flames coming out of pizza oven: 5 checks, and none of them costs anything.
Close the gas at the shutoff or the tank only if you can do it without passing close to the flame.
Keep everyone well back from the oven mouth, and call 911 at once if flame reaches a canopy, the roof, the building or will not settle.
Add no more wood, and leave the door off a burning dome; shutting it on a live fire can push flame and smoke out.
Also worth checking
- Throw no water into a hot oven or on a grease flare: it spreads burning fat and can split a floor or a dome.
- Never climb onto a roof to look at a chimney fire; after everything is out and cold, book a visit before the oven is fired again.
The causes,
cheapest first.
6 things flames rolling out of the pizza oven mouth or chimney turns out to be, from fire built too big for the dome to canopy clearance too tight above the mouth.
The cost guide-
01 no repair
Fire built too big for the dome
A fresh armful of dry wood on a hot floor can send flame out past the arch. Smaller splits, added one or two at a time, keep the fire inside the dome where it belongs.
-
02 low
Flour and grease caught on a neglected deck
Burnt flour, cornmeal and cheese drips build a crust that can light on a hot deck. The fire is let die, the oven is cooled, and a cleaning visit scrapes the decks and the burner box.
-
03 moderate
Creosote lit inside the flue
Wet wood and smoky low fires coat the chimney with tar that can catch as a chimney fire. After it is out and cold, the flue is inspected and swept, and the cap and liner are checked for damage.
-
04 moderate
Delayed ignition behind the panel
A weak igniter or a dirty burner lets gas collect before it lights, and the flame rolls out of the burner box. The igniter, burner and valve are checked before the oven is lit again.
-
05 moderate to highest
Heat shield or panel insulation burned through
When a heat shield warps or insulation falls away, burner flame can reach wiring and panel parts that were never meant to be near it. The shield and any heat-damaged wires are replaced.
-
06 varies
Canopy clearance too tight above the mouth
A soffit, pergola beam or canopy built close above an oven mouth scorches with every busy night. The technician measures what the maker asks for and says what must change before the next firing.
What else
it could be.
Most often confused with pizza oven smoke filling the room instead of leaving by the flue, then pizza oven gas smell near the burner or supply line: act first.
All problems
The makes
it happens on.
16 makes on this site; flames rolling out of the pizza oven mouth or chimney can show up on any of them. Each mark opens that make's own page.
All 16 brandsFlames Rolling Out of the Pizza Oven Mouth or Chimney,
where we come out.
9 metros, each with its own page.
All service areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions about
flames rolling out of the pizza oven mouth or chimney.
How can you tell a chimney fire from a normal busy fire in a wood-fired oven?
Should the door go on to smother a fire that has flared out of the mouth?
Can the pizza oven be used the next night after a chimney fire?
What is a safe gap between the oven mouth and a canopy above it?
Back to your everyday
Still seeing flames rolling out of the pizza oven mouth or chimney?
Book with what you checked above — 5 answers save the technician the first part of the visit.