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Kowloon Hot Water Co.

Our 24 kW wall-mounted gas combi boilers start from about HK$2,150, installed by a registered gas contractor in Kowloon and Sha Tin. What is your gas supply, and where does the flue run?

Tsuen Wan Heating Supply

Electric water heaters start from about HK$780, and we deliver to Tsuen Wan and Tuen Mun. Do you need a wall-mounted unit, or one for a single sink?

Central Boiler Works

Our branded condensing boilers from about HK$6,200 come with a flue kit and can be fitted in Central or Kowloon. How many people use the hot water, and what is your budget?

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Water heaters and boilers in Hong Kong: prices, rules and what to specify

Water heaters and boilers in Hong Kong cost roughly HK$780 for a small electric heater and HK$16,000 to HK$20,400 for a large branded boiler, according to sellers' websites in November 2026. For offers that fit your flat and gas supply, describe the heater type, volume and power in a BlaBlaPrice request.

Approximate prices in Hong Kong, November 2026 (sellers' websites)
TypeTypical specPrice range
Electric water heaterElectric, vertical or compactHK$780 to HK$1,900
Wall-mounted gas combi boiler24 to 36 kW, forced exhaustHK$1,650 to HK$2,600
Branded condensing boilerCondensing, 18 to 24 kWHK$6,200 to HK$7,300
Large branded boilerCombi or system, large outputHK$16,000 to HK$20,400

Rules and what to check

Gas water heaters must be installed to the Electrical and Mechanical Services Department's code of practice for domestic gas water heaters, so use a registered gas contractor. New gas water heaters must be a sealed or balanced type, with air and exhaust pipes running to an outside wall. Boilers and pressure vessels are covered by the Labour Department's ordinance and its regulations on installation, maintenance and inspection. The type of water heater must also be shown in the plumbing proposal for approval by the Water Authority. Warranties differ too: one heater maker gives two years on its heating element and electrical parts, and another gives three years on an electric heater's inner tank.

Season and timing

Hong Kong's winter runs December to February and summer June to August. If a boiler also heats rooms, plan the installation before winter. A water heater is needed all year, so the season matters less for it.

Units, delivery and installation

Give the volume in litres for storage heaters and the power in kW for boilers, since listings quote both. Ask whether the price includes installation, the flue kit and the gas or electrical connection. Say which of Central, Kowloon, Sha Tin, Tsuen Wan or Tuen Mun you are in, because a gas installation depends on the building.

What to write in your request

Name the heater type: electric, gas combi, condensing or heat-only. Add the volume or kW, the number of people in the flat, the flue route, and whether you have a gas supply or only electricity. Mention a named make and model if you know it, and your budget in HK$.

Describe the heater you need in your own words in a BlaBlaPrice chat, and add a photo of the existing unit if you have one. Sellers registered on BlaBlaPrice reply with their offer, delivery and installation terms, and your contacts stay hidden until you choose to share them. For related work see heating and plumbing.

Questions and answers

How much does a water heater cost in Hong Kong?

Sellers' websites showed about HK$780 to HK$1,900 for electric water heaters in November 2026, and HK$1,650 to HK$2,600 for wall-mounted gas combi boilers of 24 to 36 kW.

Do I need a registered gas contractor?

For gas water heaters, the Electrical and Mechanical Services Department's code of practice points to registered gas contractors. Ask the seller who will do the installation.

What must be checked for a gas heater's flue?

New gas water heaters must be a sealed or balanced type, with air and exhaust pipes running to an outside wall. Ask whether the flue kit is included.

How long is the warranty?

Terms differ. Snippets show two years on one maker's heating element and electrical parts, and three years on an electric heater's inner tank from another maker.

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