How to choose a reliable gas dealer: a checklist for homes and restaurants

The gas cylinder in your kitchen passes through a dealer’s hands: the dealer chooses the supply, delivers the cylinder, fits it and is the one you call when something goes wrong. That is why knowing how to choose a reliable gas dealer matters as much as choosing a good stove. Below is a checklist from the buyer’s point of view — households, eateries and restaurants — to use before committing to a dealer for the long term.

1. A clear brand and address

• The shop has a sign, a fixed address and a phone number that is answered; not just a phone number stuck on an electricity pole.
• The dealer states clearly which brand of gas it sells; the cylinder delivered is the brand you ordered.

2. Business licences as required by regulations

Selling gas is a conditional business line. A retail shop needs a business registration and a certificate of eligibility under current regulations on gas trading. You have the right to ask; a reputable dealer will readily show them. Restaurants signing a long-term gas supply contract should keep copies of these documents.

3. Cylinders still sealed and within their inspection date

• The seal on the valve is intact, matches the brand and shows no sign of having been peeled off and stuck back on.
• The information stamped on the carry handle is legible; the cylinder is within its inspection date — see periodic inspection of LPG cylinders.
• The cylinder is free of deep rust, dents or bulges; the specific criteria are in can you use a rusty or dented gas cylinder.

If the brand uses a QR label or lookup code, try scanning it; details are in LPG cylinder traceability.

4. Delivery staff leak-test when fitting

A good dealer does not just put the cylinder down and leave: the staff member fits the right type of regulator, leak-tests around the joints with soapy water (never with a flame), test-lights the stove and points out when the hose or regulator is getting old. Compare this with the steps in how to change a gas cylinder at home.

5. Willing to weigh cylinders when customers ask

Asking for the cylinder to be weighed on delivery is a buyer’s legitimate right. A reliable dealer weighs it in front of the customer; a dealer who repeatedly claims that the “scale is broken” is a worrying sign. For how to work out the actual gas, see how to check a gas cylinder’s weight.

6. Transparent prices, with invoices and delivery notes

• A clear quote before delivery: the gas price, any delivery charge and, for new customers, any cylinder deposit.
• Gas prices change from period to period; a good dealer gives notice before prices change and can explain why — see why LPG prices change monthly.
• A delivery note or invoice is provided when the customer asks for one.

7. An out-of-hours contact number for emergencies

Gas incidents do not keep office hours; ask whether the dealer has a contact number for evenings and weekends, and keep it near the kitchen. Even so, if you smell gas, the first steps are still: do not switch electrical equipment on or off, close the cylinder valve, open doors for ventilation and leave the area, and only then call the dealer or the fire service on 114 from outside.

Warning signs to avoid

When you choose a reliable gas dealer, the following are reason enough to consider looking elsewhere:

• Cylinders with no clear brand, no label, no seal or a seal that has been stuck back on.
• Prices far below the local going rate with no explanation.
• Only a phone number, no shop, and no delivery note or paperwork.
• Refusing to weigh cylinders; delivering rusty, dented cylinders or cylinders past their inspection date.
• Staff who fit cylinders in a hurry without leak-testing, claiming that “all cylinders are the same”.

Frequently asked questions

Written by the VietnhatGas technical and sales team — a batch manufacturer of LPG cylinders. This content is for reference; regulations and standards may change, so please check the current texts.