Which Water Heater Is Best to Buy in Singapore in 2026?

The best water heater in Singapore in 2026 depends on your home: instant electric for one bathroom, storage electric for busy showers, or gas for town gas flats, so pick your heater, then check out through ShopBack before you pay, where ShopBack Cashback works like a discount, only easier than a promo code. Whichever type you choose, electric instant and storage heaters sold in Singapore must carry the SAFETY Mark, according to the Consumer Product Safety Office.

New to ShopBack? ShopBack Singapore is a free website and app that gives you Cashback on eligible online orders at stores including Shopee and Lazada. You start from ShopBack, shop on the store's site or app as usual, and the cash lands in your ShopBack account once the order is confirmed. Create a free ShopBack account before you buy.

Water heaters in Singapore: the facts that matter

Three facts shape every water heater purchase in Singapore: the type that fits your home, the SAFETY Mark on electric models, and who is allowed to install gas heaters. From official sources at the time of writing:

Fact	Source
Electric instantaneous and storage water heaters for household use are controlled goods	Consumer Product Safety Office list of controlled goods
Controlled goods must be tested, registered and carry the SAFETY Mark before they can be sold in Singapore	Consumer Product Safety Office FAQs
Gas appliances must be installed, replaced or removed only by City Energy or a Licensed Gas Service Worker	City Energy gas safety tips
A gas water heater can sit in the kitchen or service balcony and pipe hot water to several points	City Energy FAQs
Ariston's ANDRIS 3 storage range comes in 15 and 30 litre capacities	Ariston Singapore

The Consumer Product Safety Office also says it works with online platforms to take down listings of controlled goods that are unregistered or carry a false SAFETY Mark, which is worth knowing if you buy online.

Which water heater is best to buy in Singapore?

For most Singapore homes, the choice comes down to how many bathrooms you have and how many people shower one after another. Here is a quick way to match the type to your home:

Your home	Type that usually fits	Why
One bathroom, one or two people	Electric instant	Compact, heats water only when the tap is on
Several bathrooms, each with its own heater	Electric instant in each	Each bathroom gets its own supply
A bathroom several people use in a row	Electric storage	A tank keeps hot water ready for back to back showers
Piped town gas available, one heater for several points	Gas	One central heater can feed several taps

Then check four things on any model you shortlist:

1. The SAFETY Mark on the listing and the unit, for electric instant and storage heaters.
2. Safety features such as a built-in earth leakage circuit breaker on instant heaters.
3. Size, either the tank capacity for storage heaters or the space on your bathroom wall.
4. Warranty and installation, including who installs it and what the warranty covers.

Instant or storage water heater: which is better for an HDB flat?

An instant water heater usually suits an HDB bathroom used by one or two people, while a storage water heater suits a bathroom where several people shower back to back. The difference is how each one heats water:

• Instant (also called instantaneous). Heats water as it flows through, so it only runs while the tap is on and does not keep a tank of hot water. Ariston says its AURES instant heaters with Constant Temperature technology measure the inlet water temperature and flow and adjust the heating power to keep the water at a steady temperature.
• Storage. Heats a tank of water and keeps it ready. Ariston's ANDRIS 3 range, for example, comes in 15 and 30 litre capacities, which Ariston says cater to different household sizes.

Things to weigh for an HDB flat:

• Space. Instant heaters are usually small units on the wall near the shower. A storage tank needs more wall or ceiling space, so measure before you buy. Ariston says its ANDRIS 3 has a square, frameless shape for compact installation.
• Back to back showers. If three or four people shower in a row from one bathroom, a storage heater with a big enough tank avoids waiting for hot water.
• Smart control. Some storage heaters can be switched on and off from an app. Ariston says its ANDRIS 3 TOP WI-FI works with the Ariston NET app and with Amazon Alexa and Google Assistant.

Instant water heaters in Singapore

Instant water heaters are the compact choice for a single bathroom, and in Singapore they must carry the SAFETY Mark like storage heaters do. When you compare instant heaters, look at:

1. Safety cut-outs. Ariston, for example, says its AURES instant heaters have a built-in double pole earth leakage circuit breaker that cuts the power if a dangerous leakage is detected.
2. Temperature control. Constant temperature features help keep the shower steady when water flow changes.
3. Shower set. Check whether a rain shower or hand shower is included in the box.
4. Fit. Check the unit's dimensions against the space on your bathroom wall.

Is an Ariston water heater a good choice in Singapore?

Ariston sells both instant and storage water heaters in Singapore, and its own pages list energy saving and safety features on its main models. According to Ariston Singapore at the time of writing:

• AURES instant heaters. Ariston says those with Constant Temperature technology are officially certified by PSB Singapore to save up to 25 percent energy, and that it was the first in Singapore to launch electric instant heaters with this technology in 2016. The range now has a built-in earth leakage circuit breaker.
• ANDRIS 3 storage heaters. Available in 15 and 30 litre capacities, in a TOP WI-FI version with app and voice control and an RS version for everyday use. Ariston says the TOP WI-FI version has a patented titanium heating element backed by a lifetime warranty, plus an Eco Evo function that learns your hot water routine to cut energy use.
• Other storage ranges. Ariston Singapore also lists ranges such as SLIM3, ANDRIS2 and PRO R SLIM.

As with any brand, compare the specific model's size, safety features and warranty terms with other brands you are considering, and register the warranty after purchase if the brand asks you to. Ariston runs an online warranty registration page for Singapore.

Is a gas water heater better than an electric one?

A gas water heater is not better for every home, but it can make sense if your flat already has piped town gas and you want one heater to supply several taps. City Energy, Singapore's piped town gas supplier, says on its FAQ page that:

• Gas water heaters are compact and can be installed in the kitchen or service balcony.
• One heater can serve the whole home, because hot water can be piped from the heater to multiple points.
• It runs only when needed. The heater senses water flow and ignites when you turn on the hot tap, and the gas supply cuts off when you turn the tap off.

The trade-offs:

• You need piped gas. City Energy lets you check piped gas availability for your address on its website.
• Licensed installation. City Energy says gas appliances may only be installed, replaced or removed by City Energy or a Licensed Gas Service Worker.
• Running costs vary. They depend on gas and electricity tariffs and on how much hot water you use, so compare the current tariffs before you decide.

Electric heaters, instant or storage, do not need a gas supply, though they usually need a suitable electrical supply and proper installation, which is why they are a common choice in flats without gas.

Water heater prices in Singapore: Shopee vs Lazada

Shopee and Lazada both sell water heaters from many brands and sellers, and which one is cheaper changes by model, seller and sale period, so compare the same model number on both. A five-minute comparison:

1. Note the brand and exact model number you want.
2. Search it on Shopee through ShopBack and note the final amount at checkout, including delivery and installation if offered.
3. Do the same on Lazada through ShopBack.
4. Check each seller is the brand's official store or an authorised seller, and that the listing shows the SAFETY Mark for electric heaters.
5. Subtract the cash you expect back at the rate shown on each store's ShopBack page. The lower effective price wins.

Other places Singapore shoppers check for water heaters include brand websites, electronics retailers and plumbing suppliers, which can be useful if you want installation bundled in.

Water heater best deals in Singapore for 2026

The best water heater deals in 2026 usually come from comparing prices, using a valid voucher, timing the purchase for a big sale if you can wait, and going through ShopBack before you pay. If your old heater still works, big sale days such as 11.11 and 12.12 on Shopee and Lazada are usually when marketplace prices drop the most. If it has broken, there is no point waiting: buy now and use the steps below.

Step 1: compare prices. Step 2: look for a promo code. Step 3: go through ShopBack. Step 4: pay with your best rewards card.

We do not list this week's prices or vouchers here, because they change too often. The live codes and the current rate for each store sit on its ShopBack page.

Why ShopBack is a step before you check out

Going through ShopBack gets you a cash rebate on the same order, at the same store. Before you buy your water heater on Shopee or Lazada, go through ShopBack Singapore first. Cashback lowers what you actually pay for an order. It comes back as cash, so it works like a discount on the price, not like points or miles.

Your effective price is what you pay minus the cash that comes back. Rates differ by store and category and change over time, so check the live rate on the Shopee or Lazada page on ShopBack Singapore on the day you buy.

Vouchers, card rewards and ShopBack on the same order

Vouchers, card rewards and ShopBack can often apply to the same water heater order. Your bank pays the card rewards, and ShopBack pays its cash separately. No code is needed for Cashback: go through ShopBack before you pay.

Step by step: buying a water heater in Singapore

1. Pick the type: instant, storage or gas, using the table above.
2. Shortlist two or three models and check the SAFETY Mark, safety features, size and warranty.
3. Compare the same model on Shopee and Lazada, including delivery and installation.
4. Look for a valid voucher on the store or its ShopBack page.
5. Go through ShopBack Singapore to the store with the lowest final price, and check out.
6. Arrange installation and register the warranty if the brand asks you to. For gas heaters, use City Energy or a Licensed Gas Service Worker.

FAQ

Which water heater is best to buy in Singapore?

The best water heater depends on your home. An electric instant heater suits a single bathroom with one shower point, an electric storage heater suits a bathroom where several people shower back to back, and a gas heater suits homes with piped town gas that want one central heater. Whichever you pick, electric instant and storage heaters sold in Singapore must carry the SAFETY Mark.

Instant or storage water heater: which is better for an HDB flat?

It depends on how many bathrooms and showers you run at once. An instant heater heats water as it flows, so it is compact and only works when the tap is on, and you usually fit one per bathroom. A storage heater keeps a tank of hot water ready, such as the 15 and 30 litre sizes Ariston lists for its ANDRIS 3 range, which can suit a bathroom used by several people in a row.

Is an Ariston water heater a good choice in Singapore?

Ariston sells both instant and storage water heaters in Singapore. According to Ariston, its AURES instant heaters with Constant Temperature technology are certified by PSB Singapore to save up to 25 percent energy and have a built-in earth leakage circuit breaker, and its ANDRIS 3 TOP WI-FI storage heater has app control and a titanium heating element with a lifetime warranty. Compare the model's size, features and warranty with other brands before you buy.

Is a gas water heater better than an electric one?

Neither is better for every home. City Energy says a gas water heater is compact, can sit in the kitchen or service balcony, and can pipe hot water to several points in the house, and it only fires when you turn on the hot tap. But it needs piped town gas and must be installed by City Energy or a Licensed Gas Service Worker. Electric heaters do not need a gas supply, though they usually need a suitable electrical supply and proper installation.

What is the SAFETY Mark on a water heater?

The SAFETY Mark shows that a controlled appliance has been tested to safety standards and registered with the Consumer Product Safety Office before sale in Singapore. Electric instantaneous and storage water heaters for household use are on its list of controlled goods, so check for the mark on the product listing and the unit.

Is it cheaper to buy a water heater on Shopee or Lazada?

It changes by seller, model and sale period, so there is no fixed answer. Search the same brand and model number on both, compare the final amount at checkout including delivery and installation, check the seller is an official or authorised store, and go through ShopBack Singapore before you pay on whichever wins.

What size storage water heater do I need?

It depends on how many people shower one after another from the same heater. Smaller tanks heat up faster and take less space, while bigger tanks hold more hot water for back to back showers. Ariston, for example, offers its ANDRIS 3 storage range in 15 and 30 litre capacities, which it says cater to different household sizes.

When is the best time to buy a water heater in Singapore?

If your current heater still works, big sale days such as 11.11 and 12.12 on Shopee and Lazada are usually when marketplace prices drop the most. If it has broken, buy now, compare the same model on both sites, use a valid voucher, and go through ShopBack before you check out.

How does ShopBack work when I buy a water heater?

Going through ShopBack gets you a cash rebate on the same order, at the same store. Open ShopBack Singapore, tap through to Shopee or Lazada, and check out. The cash comes back to your ShopBack account once the order is confirmed, and the live rate for each store is shown on its ShopBack page.

Can I use a voucher and still go through ShopBack?

Often yes. No code is needed for Cashback: go through ShopBack before you pay, and use a valid voucher at checkout.

---

Related reads

---

Ready to buy your water heater?

Go through ShopBack before you buy on Shopee, or compare the same model on Lazada and check the live rate on each page before you pay.

---

Disclaimer

The information in this article is provided for general informational purposes only and does not constitute purchase or installation advice. Product features, warranties and safety rules are quoted from the brands', City Energy's and the Consumer Product Safety Office's own pages at the time of writing and can change without notice. Always check the current product details before you buy, and use qualified installers. Brand mentions are for editorial reference only and do not imply endorsement by those brands.