Rinnai Water Heater Services

Japan's Gas Heating Leader

Rinnai is Japan's leading gas water heater brand and the top choice for Singapore homes with gas supply. Known for precision temperature control, energy efficiency, and robust build quality across their instant and storage gas heater range.

📍 Origin: Japan 🛡️ 2 years parts warranty, 5 years heat exchanger warranty

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Popular Rinnai Models

Rinnai REU-V1620W-SG

Gas Instant

From $480

Rinnai REU-V2020W-SG

Gas Instant

From $580

Rinnai RES-WN40A

Gas Storage

From $650

Rinnai RES-WN60A

Gas Storage

From $780

Rinnai REU-A2024W-SG

Gas Instant

From $620

Our Rinnai Services

Rinnai Repair

Expert diagnosis and repair of all Rinnai gas water heater models, including ignition, thermocouple, and gas valve issues.

From $90

Rinnai Installation

Safe, code-compliant Rinnai gas heater installation including gas line connection and venting.

From $150

Rinnai Replacement

Supply and fit a new Rinnai gas heater with full gas safety testing and old unit removal.

From $600

About Rinnai Water Heaters

Rinnai Corporation is a Japanese manufacturer with over 100 years of experience in gas appliances. In Singapore, Rinnai is synonymous with gas water heating — their REU series gas instant heaters are the benchmark product for landed homes, semi-detached, and terraced houses with piped gas supply.

Why Choose Rinnai?

Fastest hot water delivery — Gas heating is instantaneous; no waiting for a tank to warm up
Precise temperature control — Digital temperature selection down to 1°C increments on premium models
Lower running costs — Gas is generally cheaper than electricity per unit of heat in Singapore
High flow rates — Rinnai’s 16–20L/min models easily supply multiple outlets simultaneously
Strong warranty — 5-year heat exchanger warranty reflects confidence in their build quality
Singapore-certified — All Rinnai models sold here are certified for Singapore’s gas network (Town Gas / LPG)

Gas Safety Note

All Rinnai gas heater installation and repair work requires a licensed gas service worker. Our technicians hold the necessary certification and follow SP Group / City Energy safety requirements for all gas connection work. We never cut corners on gas safety.

Our Rinnai Services

Repair: Ignition system, thermocouple, gas valve, heat exchanger, temperature controller
Installation: Full gas connection, flue venting, safety testing to Singapore gas safety code
Replacement: Supply new Rinnai model, safe disconnection of old unit, full commissioning
Servicing: Annual heat exchanger inspection, gas pressure test, and cleaning

Need Rinnai repair or installation? Contact us or WhatsApp us for a same-day quote.

Rinnai Heater Types

Gas Instant Water Heaters Gas Storage Water Heaters

Rinnai FAQs

Is Rinnai a good gas water heater brand?

Rinnai is the market leader in gas water heaters globally and is widely regarded as the gold standard for gas heating in Singapore. Their heaters offer precise temperature control, fast heating, and exceptional energy efficiency — ideal for Singapore landed homes and gas-connected condominiums.

How long does a Rinnai gas water heater last?

Rinnai gas water heaters typically last 10–15 years with proper maintenance. Annual servicing extends their lifespan significantly. The heat exchanger is the most critical component and Rinnai warranties it for 5 years.

Can you install Rinnai gas water heaters in Singapore HDB flats?

HDB flats are generally connected to Singapore's piped gas network, making Rinnai gas heaters a viable option. However, not all HDB flats have existing gas heater connections. Our technicians can assess your flat's current gas supply setup before recommending a Rinnai model.

What are common problems with Rinnai gas water heaters?

Common issues include ignition failure (dirty igniter or faulty spark electrode), thermocouple failure causing safety shutoff, gas valve faults, and scale build-up in the heat exchanger. Most can be diagnosed and repaired in a single visit.

Do you service all Rinnai gas heater models?

Yes. We service all Rinnai gas instant and storage heater models available in Singapore, including REU, RES, and older discontinued models. Our technicians are trained in gas appliance safety and hold the necessary certification.

Need Help With Your Rinnai Heater?

Whether it's repair, installation, or replacement — our technicians are experienced with all Rinnai models.

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