21 Jun 2025

459 Yishun Avenue 11 HDB

Water Heater Rusty Replacement: Rubine SP 15 to Ariston AN2 30 RS at 459 Yishun Avenue 11 HDB on 28 May 2025

A homeowner contacted Homeone after discovering their Rubine SP 15 storage water heater was leaking and exhibiting signs of advanced corrosion. Upon inspection, our technician confirmed a typical “Water Heater Rusty” case—the tank had visible rust and was dripping at its base.

The heater was installed without critical safety components. There was no drain pipe connected to the temperature relief valve, resulting in uncontrolled discharge onto the surface below. In addition, the heater had no double-check valve or any approved backflow prevention device, exposing the household to contamination risk. Electrical bonding was also missing, posing a potential electrocution hazard.

Project location
459 Yishun Avenue 11 HDB
Property type
HDB

Before

Replacement of a Rubine SP 15 water heater to resolve heater problems end of service life.

After

The Ariston AN2 30 RS has been newly installed to the existing water heater system, with all connecting pipework made of stainless steel. The installation includes a new stop valve, double check valve, drain pipe, electric bonding, and 2.5mm² wire, and a submission has been filed to PUB to ensure safety and compliance with PUB regulations. Additionally, Homeone offers a 1-year warranty on this installation, complementing the manufacturer's warranty, ensuring peace of mind and reliable service.

Table of Contents

Water Heater Rusty Replacement: Rubine SP 15 to Ariston AN2 30 RS at 459 Yishun Avenue 11 HDB

Old Water Heater:

Rheem Vertical 30L (Model number not visible)

Old Water Heater:

Rheem 85VP30S

Site Findings

Water Heater Rusty tank body with active leaks
Brown rust stains are visible near the inlet and tank seams
No drain pipe – water discharged unsafely into the open
No double check valve or approved backflow device (violation of SS636)
No electrical bonding, violating CP5:1998 safety standards

Proposed Solution

To resolve this unsafe Water Heater Rusty condition and meet all PUB requirements, Homeone replaced the Rubine SP 15 with a new Ariston AN2 30 RS (30L) water heater. Known for its compact size and enhanced corrosion resistance, the AN2 30 RS was ideal for this replacement.

Key upgrades included:

Installation of a PUB-approved double-check valve
New stopcock/stop valve for emergency shut-off
Properly routed drain pipe
Electrical bonding is applied to prevent electrocution
Stainless steel inlet/outlet pipework within 1 metre

All installation work was supervised by a PUB-licensed plumber and EMA-trained electrician, ensuring full regulatory compliance.

Work Scope

Dismantling
Isolated water and power supply
Removal of Rubine Water Heater Rusty Unit
Cleared degraded pipe fittings and corroded electrical connectors
Verified wall anchoring and bracket integrity for the wall mount heater
Mounted the new Ariston AN2 30 RS securely
Installed stainless steel inlet/outlet pipework (≤1 metre)
Fitted PUB-approved double check valve and stopcock
Replaced power cable with 2.5mm² wiring
Bonded metal parts to earth according to CP5 Clause 413-02

Testing & Handover

Performed pressure and leak testing
Verified electrical safety and earthing continuity
Final visual inspection and site cleanup
Documentation
Filed compliance documents with PUB under licensed supervision

Conclusion

This Water Heater Rusty case involving a Rubine SP 15 was resolved with a full, safe replacement using the Ariston AN2 30 RS system. The installation is now fully compliant with PUB and SS636 regulations, with proper backflow protection, drainage, and electrical safety measures in place.

At Homeone, we specialise in transforming outdated, unsafe water heaters into fully compliant and long-lasting systems, executed under licensed supervision for total peace of mind.

Project Location: 459 Yishun Avenue 11 HDB

459 Yishun Avenue 11 HDB