Integrated Cooker Combined Testing: Gas + Range Hood in One Bench

An integrated cooker (集成灶) is two products in one frame — a gas cooktop and a range hood — which means two families of tests, two sets of instruments and one workflow problem. Combined testing puts both on one coordinated bench with one record per unit.

The integrated cooker is a category that has grown because it solves a kitchen problem: one appliance that cooks with gas and removes the cooking air. For the QC engineer, however, it creates a testing problem the single-function products never had. The gas cooktop must be tested as a gas appliance; the range hood section must be tested as an air-moving product; and the finished unit must be recorded as one product. This guide explains what combined testing for integrated cookers covers, how a combined test bench is built, and what to specify when you plan one.

1. Why an Integrated Cooker Needs Combined Testing

An integrated cooker is not a gas cooker with a fan attached — it is a product whose two halves each carry their own performance and safety obligations, tested in one frame:

• The gas half has gas obligations. Tightness, ignition, flame characteristics, thermal efficiency and safety functions are the gas appliance test family, and they apply to the cooktop section exactly as they apply to a standalone gas cooker.
• The air half has performance obligations. The range hood section must move cooking air — measured as airflow and static pressure — and it must do so without unacceptable noise. These are the range hood performance test family.
• The product has one record. Buyers, certification bodies and quality systems want per-unit evidence covering the complete product. Two separate test workflows produce two records that must be reconciled by hand; combined testing produces one.

The workflow argument is just as practical: testing a finished unit on two benches in two areas means two test queues, two bookings and the recurring floor question — “which bench do I test on first?” A combined bench removes that question by design.

2. The Gas Side: What Gets Tested

The gas cooktop section of an integrated cooker is tested with the same core items as a gas cooker test bench. The typical set, following the gas cooker test method family used across gas appliance testing:

Gas supply is a core part of the bench design: LPG/NG readiness is standard in our gas benches, and multi-gas configurations with a gas mixing system can be specified where the product is exported across gas families. The instrumentation class — 0.5-class flow, pressure and temperature measurement in our gas appliance benches — is stated in the specification so results are comparable and defensible.

3. The Air Side: What Gets Tested

The range hood section is tested with the range hood performance family. The core items:

• Airflow. The volume of air the hood moves, measured on a defined test rig with calibrated flow measurement. This is the headline performance number for the air half.
• Static pressure. The pressure the hood develops against duct resistance — the number that tells whether the hood performs in real ducted installation, not just free outlet.
• Noise. The sound the hood produces, measured under defined conditions — a decisive comfort factor in kitchen use and a common buyer comparison point.

The air performance measurement follows the range hood performance method families — for example the measurement approach of GB/T 17713 in China and the IEC/EN 61591-style methods for European markets. The rig geometry, duct condition and reporting format are configured to the market you report against, exactly as for a standalone range hood test bench.

4. The Combined Bench: How It Is Built

A combined integrated cooker test bench integrates the two test families on one coordinated platform. The architecture follows a clear logic:

1. One test station, one product position. The integrated cooker is mounted once, in its installed orientation, with the gas connections on the cooktop side and the duct connection on the hood side. No moving the unit between stations.
2. The gas test section. Gas supply (LPG/NG-ready, with mixing options), pressure and flow instrumentation, temperature measurement for thermal efficiency, and the safety function test provision — the same structure as our gas cooker test benches, with 12+ test item capability.
3. The air performance section. The duct connection, flow measurement (calibrated nozzles or orifice), static pressure taps and noise measurement provision — the structure of our WH-YJ05-301A range hood test equipment, configured for the hood section’s duct arrangement and airflow range.
4. One control and data system. The operator runs a standard sequence covering the complete product; gas results and air results are recorded together against the unit’s serial number. One test, one record, one queryable history.

This platform approach is what makes combined testing practical: the gas side and the air side are proven platforms, and the engineering work is integration and configuration — which is why custom combined benches are delivered on realistic timelines.

5. Standards and Evidence for the Combined Product

Combined testing touches several standard families, and mapping them is part of the specification:

• Gas performance and safety. The gas side maps to the gas cooker test method family (GB/T 16411-based test items in our gas benches) and the applicable safety requirements for the cooktop function.
• Air performance. The hood side maps to the range hood performance method families — GB/T 17713 for the Chinese baseline, IEC/EN 61591-style methods for Europe.
• Electrical safety. As an electrical appliance with moving parts and a fan, the integrated cooker also carries electrical safety obligations — the IEC 60335 family of safety requirements for household appliances applies to the electrical functions (see the electrical safety guide in this series).

For the QC record, the combined bench produces the evidence structure exporters need: per-unit gas and air results in one data system, plus the safety verification records from the same platform where the test scope includes them.

6. What to Specify When You Plan a Combined Bench

Five specification points decide whether a combined bench delivers what the factory actually needs:

• Test scope. Which gas items, which air items, and which safety checks — written as a list, not a promise. Every item is stated in the quotation.
• Gas supply configuration. Single gas family or LPG/NG-ready; whether a gas mixing system is needed for multi-gas export markets.
• Duct and measurement configuration. The hood outlet arrangement, duct geometry and the flow measurement devices — matched to the models you test and the method you report against.
• Data system. Local logging with export, or integration with your ERP/quality system so test records flow into existing workflows.
• Operator interface. Touchscreen sequence control for production-floor operators, or a PC-based analysis system for laboratory use — the bench follows the user.

Each of these is a written specification item, agreed before manufacturing starts. That discipline is what makes the delivered bench match the factory’s real workflow — and what makes the acceptance test meaningful.

6.1 Combined Testing vs Two Benches: A Practical Comparison

The decision between one combined bench and two separate benches is an economic one as much as a technical one. The comparison below shows what changes when the workflow moves from two stations to one:

For factories moving toward combined testing, a staged path reduces risk: start with the combined bench covering the current integrated models, keep the gas bench for the standalone line, and let the combined bench’s data system become the quality reference as the integrated share of production grows. The bench specification should state which models it must cover today and which families it should extend to later — changeable test interfaces and a data system that grows with the line are part of that answer. Whichever path you choose, the discipline is the same: the test scope, the gas supply, the duct configuration, the data system and the operator interface are all written specification items, agreed before manufacturing starts — so the delivered bench is measurable against the document that defined it.

The right answer depends on the product mix. A factory making mostly standalone gas cookers and standalone range hoods may legitimately keep two benches. A factory whose line is dominated by integrated cookers — where nearly every unit needs both test families — pays for the combined bench in workflow savings, floor space and record quality every single day. The decision should be made against your actual product mix and volumes, stated in the specification round, not defaulted to either side.

7. Frequently Asked Questions

Can one bench really test both the gas cooktop and the range hood?
Yes — that is what combined testing is. The bench integrates the gas test section and the air performance section on one platform with one data system, so a finished unit is tested and recorded as one product.

Which standards do we measure against?
It depends on your target markets: the gas side follows the gas cooker test method family (GB/T 16411-based items in our benches), the air side follows the range hood performance families (GB/T 17713 for China, IEC/EN 61591-style for Europe), and electrical safety follows the IEC 60335 family. Your specification states the mapping per market.

Do we still need a separate gas stove test bench?
For a factory making only integrated cookers, the combined bench covers the product. Factories making both standalone gas cookers and integrated cookers often keep a standalone gas bench for the single-function line and a combined bench for the integrated line — the configuration follows the product mix.

How long does it take to build a combined bench?
The typical sequence applies: specification agreed in writing first (days 1–7), design phase about 7–15 days, manufacturing about 15–25 working days for standard configurations and 30–45 working days for custom ones, followed by export packing, shipment and video commissioning.

Can the bench test different integrated cooker models?
Yes — burner arrangements and duct positions are handled through changeable test interfaces, and the data system records results per model and serial number. The model range you need to cover is part of the specification.

What documentation comes with a combined bench?
The technical specification, acceptance test report, calibration records and operation documentation — the same documentation set we deliver with every bench, for your quality system and your buyers’ audits.