Storage Water Heater Singapore | Supply, Installation & Servicing
A storage water heater provides a constant supply of hot water to your home, making it ideal for families, master bathrooms, or any household that needs reliable hot water at multiple points. Alpha & Omega Trinity (AOT) supplies and installs all leading storage water heater brands in Singapore — Ariston, Rheem, Joven, Ferroli, Panasonic, and more — with full PUB-compliant installation and a 1-year workmanship warranty.
Our team has installed hundreds of storage water heaters across Singapore HDB flats, condominiums, and landed properties. We bring the expertise to get it right the first time — safely and neatly.
📞 Call: +65 6816 2462 | 💬 WhatsApp: +65 8151 8857
What Is a Storage Water Heater?
Unlike an instant water heater that heats water on demand, a storage water heater has an insulated tank that continuously maintains water at a set temperature (typically 60–75°C). When you open the hot tap, pre-heated water is drawn from the tank and cold water enters to be heated.
Key advantages:
- Consistent water temperature without pressure fluctuations
- Suitable for bathtubs, rain showers, and multi-point hot water use
- Lower heating element wattage (less electrical load at one time)
- Hot water ready immediately at the tap
Key considerations:
- Larger physical footprint — requires dedicated wall space and structural support
- Higher standby energy loss compared to instant heaters
- Tank must be drained and descaled periodically
Popular Storage Water Heater Brands in Singapore
Ariston Storage Water Heaters
Ariston is an Italian brand with a strong reputation in Singapore. Models like the Ariston Pro1 R and Ariston Andris series are popular for their energy efficiency, safety features (thermal cut-out, anti-scale coating), and reliability. Tank sizes from 15L to 80L.
Rheem Storage Water Heaters
Rheem is an American brand widely used in Singapore condominiums and landed properties. The Rheem EHG series features a glass-lined tank with a sacrificial anode for corrosion protection. Available in 25L, 36L, 50L, and 80L.
Joven Storage Water Heaters
Joven is a well-known Malaysian brand with a large installed base in Singapore. Their JSH series offers good value for money with reliable performance and easy installation.
Ferroli Storage Water Heaters
Ferroli (Italian) storage heaters are known for their robust build quality and wide range of sizes. Suitable for high-usage households or small commercial applications.
Panasonic Storage Water Heaters
Panasonic's DH-series storage heaters are compact and energy efficient, with electronic controls and multiple safety cutoffs. Popular for HDB master bathrooms.
Storage Water Heater Sizes — Which Do You Need?
| Tank Size | Suitable For |
|---|---|
| 15–20 litres | Single person, guest bathroom |
| 25–30 litres | Couple, master bathroom, 1–2 users |
| 40–50 litres | Family of 3–4, bathtub use |
| 60–80 litres | Large family, multiple bathrooms, light commercial |
Not sure what size you need? WhatsApp AOT with your bathroom setup and family size — we'll recommend the best option.
Installation Requirements
Storage water heaters in Singapore must comply with the following:
- Installed by a PUB-licensed plumber (for water connections)
- Electrical connection by a licensed electrical worker (LEW)
- Temperature & Pressure (T&P) relief valve installed and piped to a safe drain
- Wall mounting must be structurally sound (anti-tip bracket for larger models)
- Adequate ventilation around the unit
AOT handles all of the above in a single visit. No need to coordinate multiple contractors.
Storage vs Instant Water Heater — Which Is Better for Singapore?
This is one of the most common questions we receive. Here's a quick comparison:
- Instant heaters are more compact and energy-efficient. Great for HDB bathrooms where space is tight. However, they have higher wattage instantaneous draw (3,500–5,000W) and may require a dedicated circuit.
- Storage heaters are better for bathtubs, rain showers, or users who prefer a gentler water flow without pressure fluctuations. They have lower instantaneous wattage (1,500–2,500W).
AOT's technicians can advise on the best choice for your specific bathroom layout, electrical system, and usage habits.
Pricing
- 15L–20L storage heater (supply + install): $350 – $550
- 25L–30L storage heater (supply + install): $450 – $650
- 40L–50L storage heater (supply + install): $600 – $900
- Installation only (customer supplies unit): From $120 – $160
Customer Testimonials
"AOT installed a 30L Ariston storage heater in my master bathroom. The installation was neat, with all pipes concealed. The heater works perfectly and the water pressure from the hot tap is consistent." — Mr. Chua Beng Huat, Bishan HDB
"We upgraded from an old instant heater to a 50L Rheem storage unit. AOT did the full installation in one afternoon. Excellent workmanship and very reasonable price." — Jenny Tan, Pasir Ris Condo
"The team arrived on time, explained the differences between models clearly, and installed the heater with minimal disruption. I appreciated that they cleaned up before leaving." — Mr. Ravi Krishnan, Woodlands Landed
FAQs — Storage Water Heater Singapore
How long does a storage water heater last in Singapore?
A well-maintained storage water heater typically lasts 8–12 years in Singapore. The tank lining (glass or stainless steel) and the sacrificial anode (if fitted) are key factors in longevity. Annual draining and descaling extends service life.
Why is my storage water heater leaking?
Leaks usually occur at pipe connections (easily fixed) or from the T&P relief valve (triggered by overpressure — may need a pressure reducer). Tank body leaks indicate internal corrosion and mean the unit needs replacement. WhatsApp AOT a photo for a quick diagnosis.
Can I install a 50L storage heater in an HDB bathroom?
Yes, but you need adequate wall space and structural support. AOT will assess the mounting wall during the quotation visit and advise on any reinforcement needed. Most HDB walls can support up to 80L units with the right mounting hardware.
Do storage water heaters consume a lot of electricity?
Modern storage heaters have excellent insulation and low standby energy loss. An average 30L unit kept at 65°C uses approximately 1–1.5 kWh per day in Singapore conditions. Look for the NEA Energy Label — higher stars = more efficient.
Related AOT Services
- Water Heater Installation Singapore
- Instant Water Heater Singapore
- Plumbing Services Singapore
- Electrician Singapore
Published by the AOT Service Team — our licensed technicians have served 5,000+ Singapore homes and businesses since 2016.
📞 Call: +65 6816 2462 | 💬 WhatsApp: +65 8151 8857 | ✉️
