Commercial catering gas is a different discipline from domestic heating work, and the difference is mostly about air. A kitchen full of gas appliances under a canopy behaves nothing like a boiler on a wall.
WS Gas Solutions carries out commercial gas work across Blackpool. This is what separates it from domestic work, and where problems usually turn up.
Ventilation is the whole subject
Catering appliances consume air and produce combustion products in a confined, busy space. Adequate ventilation, both extract and the replacement air to feed it, is what makes that safe. Extract alone is not enough: pull air out without letting it back in and the kitchen goes into depression, which affects how every appliance burns.
That is why the ventilation system and the gas appliances are assessed together rather than separately. A change to the extract canopy, a new appliance, or even a door being kept shut that used to be propped open can alter the balance the installation was signed off against.
- Extract and replacement air assessed as one system.
- Kitchen depression affects how appliances burn.
- Layout or canopy changes alter the original assessment.
Interlocks and why they trip
A gas interlock shuts off the gas supply if the ventilation is not running properly, which is exactly what it is meant to do. Kitchens that experience nuisance shutdowns often have an underlying ventilation problem rather than a faulty interlock, and disabling or bypassing one converts a safety system into a liability.
If an interlock keeps cutting the gas during service, that is a symptom worth investigating properly. The fix is usually in the airflow, filters or fan performance rather than in the gas train.
What changes when the kitchen changes
New appliances, a different layout, a replacement canopy or a change of use all affect the gas installation even when the pipework is untouched. The safe assumption is that any physical change to a kitchen triggers a reassessment rather than none.
WS Gas Solutions covers commercial gas alongside its domestic boiler and heating work, so a site with both a catering kitchen and ordinary heating can be dealt with by one firm rather than co-ordinating two, which also means one set of records.
- Any new or moved appliance triggers reassessment.
- Canopy or extract changes count as changes to the installation.
- Change of use matters even if nothing was moved.
Keeping the paperwork usable
Keep the installation records, the ventilation assessment, appliance servicing records and any remedial work in one place, and keep them current. Commercial premises are asked for this material at inconvenient moments, and hunting for it is what turns a routine request into a problem.
Book annual work out of season where the trade allows it. A kitchen that arranges its gas work in a quiet month deals with findings calmly; one that waits until something fails deals with them during service.
Related pages
Questions customers ask
Why does my gas interlock keep shutting the supply off?
Usually because the ventilation is not performing as it should, which is the interlock doing its job. Look at fan performance, filters and replacement air rather than treating the interlock itself as the fault.
Do I need anything done if I only change one appliance?
Yes. A new or moved appliance changes the demand on the ventilation and the installation it was assessed against, so it should be reassessed even where no pipework has been altered.
Is extract ventilation on its own enough?
No. Air taken out has to be replaced. Extract without adequate replacement air puts the kitchen into depression, which affects how every gas appliance in it burns.
Treat ventilation and gas as one system, investigate interlock trips rather than resenting them, and reassess whenever the kitchen changes. That is most of commercial catering gas kept straight.
WS Gas Solutions carries out commercial gas work across Blackpool. The contact page starts it.
