CUISINE-SPECIFIC FIELD GUIDE
Chinese / Wok Conversion Inspection Manual
CUISINE-SPECIFIC LANDMINE
High-BTU wok ranges need real make-up air and a Type I hood with proven capture.
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WHERE THIS CUISINE QUIETLY COSTS YOU MONEY
Chinese / Wok-specific conversion gotchas
01 · Wok-range BTU load
A single 16" wok burner runs 100,000–150,000 BTU; a four-burner Chinese range commonly hits 600,000+ BTU. The hood, exhaust fan, and gas service in the previous tenant's set-up almost certainly weren't sized for that. Confirm hood CFM, exhaust duct size, and gas-meter capacity BEFORE signing.
02 · Make-up air sizing
For every CFM the hood exhausts, you need a matching CFM coming in — typically 80–85% of exhaust as a dedicated tempered MUA unit. A 4,000 CFM wok hood with no MUA pulls negative pressure through the front door, slams it, and chases customers out. MUA is often an extra $8K–$15K conversion line item.
03 · Stainless wall behind the wok
Code (and insurance) require non-combustible wall + ceiling surfaces within ~36" of any wok burner. Drywall behind the previous tenant's pizza oven won't pass — budget for stainless sheet or fire-rated tile across the whole back wall.
04 · Wok-water drainage
Wok stations use a constant cool-water spray to keep the ring temperature down — that water has to go somewhere. Most wok ranges ship with a built-in 2" floor drain requirement. If the existing slab doesn't have a drain in the right spot, you're saw-cutting concrete (~$3K–$8K + permit).
05 · Grease load + interceptor sizing
Wok cooking generates 2–3× the grease load of grill or sauté. The previous tenant's grease interceptor was probably sized for that operation, not a wok line. Many AHJs require resizing under IPC Section 1003 — expect a 1,000+ gallon interceptor + a pump-out frequency increase from quarterly to monthly.
Five immediate stop signals
These cancel any deal regardless of cuisine.
You smell gas, see burnt wiring, or see blackened / charred hood areas.
The exhaust fan is missing, disconnected, or shaking violently.
The seller refuses to provide hood / fire / grease records.
You must add major cooking equipment outside the existing hood.
The landlord will not allow roof, gas, electrical, or grease-interceptor work.
WALK
Smell, look, listen
PROVE
Hood · gas · electrical · plumbing
PRICE
Written scopes before signing
NEGOTIATE
Or walk away
Defined terms in this guide
The vocabulary worth knowing before you sign.
- BTU (British Thermal Unit)· BTU
- The unit of energy a gas-fired cooking appliance consumes per hour. A standard residential burner is ~12,000 BTU; a commercial wok burner is 100,000–150,000 BTU per ring.
- CFM (Cubic Feet per Minute)· CFM
- The volumetric flow rate of an exhaust hood or make-up air unit. A typical commercial pizza hood pulls 1,500–2,500 CFM; a high-BTU wok hood can pull 4,000+ CFM.
- Make-Up Air· MUA
- Conditioned outside air drawn into the kitchen to replace what the hood exhausts. Sized at 80–85% of exhaust CFM as a tempered, dedicated unit.
- Type I Hood
- A grease-rated commercial exhaust hood with stainless construction, filter banks, and fire-suppression integration. Required over all grease-producing appliances per NFPA 96.
- Grease Interceptor
- An in-ground or in-line tank that separates fats, oils, and grease (FOG) from kitchen wastewater before it enters the sewer. Sized per IPC §1003 fixture-unit math.
OTHER CUISINES
09
Thai / Vietnamese / Southeast Asian
Pho stock pots run 18+ hours — gas load and exhaust capacity get under-spec’d.
08
Indian / South Asian
Tandoor ovens have unique clearance + venting rules most inherited hoods don’t satisfy.
17
Mediterranean / Middle Eastern / Kabob
Vertical broiler + charbroiler combinations stack BTUs in ways inherited hoods rarely handle.
Already walking the space?
After your field findings come the permit drawings. APD draws code-compliant, contractor-bidable plans fast enough to keep the deal on the rails — operating in all 50 states; trilingual EN / ES / 中.
Contact
Begin a project.
Studio
Phoenix4435 E Chandler Blvd · Suite 200
Phone
(602) 628-1231Servicios disponibles en español · 中文版本 (602) 628-1231