17 Jun 2025

The Bayshore

Water Heater Rusty Replacement: Rheem 81VP6S to Joven JSH25 at The Bayshore on 18 Jan 2025

A homeowner at The Bayshore contacted Homeone after noticing water dripping from their ceiling and brown-stained patches forming around the false ceiling panel. Upon investigation, our team found the culprit: a Rheem 81VP6S storage water heater that had become badly rusted and had begun leaking internally.

The unit had reached the end of its lifespan. Water was escaping from the corroded tank body, and rusty discharge had already caused visible ceiling damage. Additionally, our assessment found multiple non-compliance issues: the existing power supply used an undersized 1.5mm² cable, and the heater had been installed without the required anti-vacuum valve, a component clearly stated in Rheem’s manufacturer guidelines.

The homeowner decided to switch to the Joven JSH25. The new installation was carried out with full PUB compliance and corrective measures for long-term safety.

  • Project location

    The Bayshore

  • Property type

    Condominium

Rheem Water Heater Rusty . Condo. 00

Before

Replacement of a Rheem 81VP6S water heater at to resolve heater problems end of service life.

After

The Joven JSH25 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.

Water Heater Rusty Replacement: Rheem 81VP6S to Joven JSH25 at Fontaine Parry

Old Water Heater:

Rheem 81VP6S

 

Old Water Heater:

Joven JSH25

 

Site Findings

A homeowner at Fontaine Parry reported rust formation and water discolouration from their Joven JH38 water heater. On inspection, Homeone’s technician observed visible external corrosion on the tank’s metal casing and fittings—typical signs of long-term wear and reduced performance.

In addition to the ageing unit, the system lacked an approved double check valve, which is essential for preventing backflow contamination into the potable water supply. This omission was a clear violation of SS636, the Singapore Standard for water service installations.

Proposed Solution

To resolve both the structural and safety concerns, Homeone proposed removing the failed Rheem unit and replacing it with a new Joven JSH25—a reliable and efficient 25L model suitable for concealed ceiling installations.

To ensure full safety and compliance:

  • A double-check valve was installed to meet SS636

  • Ceiling access was safely opened, and the leaking tank was removed

  • A drainpipe and electrical bonding were installed for full compliance

  • A proper 2.5mm² power cable was used

All work was carried out by a PUB-licensed plumber and supervised by an EMA-licensed electrician.

Work Scope for Water Heater Rusty Replacement

Assessment & Dismantling

  • Shut off the water and power supply

  • Safely drained and removed the corroded Rheem 81VP6S unit

  • Cleared and cleaned the mounting area

Installation of New Joven JSH25

  • Delivered and mounted the new heater securely
  • Connected stainless steel piping within 1 metre
  • Installed double check valve, earth bonding and drain pipe
  • Rewired heater using 2.5mm² cable to meet safety standards
  • Reinstatement of the ceiling to restore it to its original state

Testing and Commissioning

  • Performed leak checks and flow tests

  • Verified heating and pressure controls

Final Tidy-Up and Documentation

  • Cleared site of old fittings and packaging

  • Submitted compliance documentation under PUB-licensed supervision

 

Conclusion

This Rheem water heater rusty replacement at The Bayshore resolved urgent structural and safety risks. The newly installed Joven JSH25 offers improved durability, a compact form factor, and fully PUB-compliant fittings. The household now enjoys safe, efficient hot water delivery with updated anti-backflow protection, wiring, and bonding.

Homeone ensures every heater installation adheres to Singapore’s highest safety and compliance standards—protecting both your home and your peace of mind

Project Location: The Bayshore

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