2 Feb 2024

Rheem 85VP6S Water Heater Replaced With Rheem EHG-30 Water Heater at the landed house situated at 23 Linden Drive on 1 Feb 2024

The Rheem 85VP6S Water Heater project is mandatory to comply with Section 40G of the Public Utilities Act 2001, which requires all storage installations to be submitted to the Public Utilities Board (PUB) for an Acknowledgement of Authorized Heater Replacement. This ensures that the installation meets all relevant regulations and standards, providing peace of mind regarding the safety of the installation. By complying with this requirement your storage water heater installation is authorized and safe to use. Let PUB ensure that your installation meets all necessary requirements and protects you.


  • Project location

    23 Linden Drive

  • Property type


Rheem 85VP6S Water Heater


Replacement of Rheem 85VP6S Water Heater to resolve heater problems end of service life.


Rheem EHG-30 Water Heater is the new installation. All pipe works connecting to the heaters are stainless steel piping. Following the manufacturer's specifications, a new approved stop valve and double-check valves are employed. Such will comply with PUB Regulations. Our Licensed Plumber has supervised and approved the installation. There is a 1-year warranty by Homeone for this installation on top of the warranty provided by the manufacturer.

The final result

Rheem 85VP6S Water Heater Replacement

Old water heater:

Rheem 85VP6S Water Heater

The Rheem 85VP6S is designed for HDB, BTO, Codo & Landed, manufactured by Rheem, a well-known brand in the water heating industry.
Here are some details about its type, efficiency, and safety features:
Type: The Rheem 85VP6S is a traditional tank-style water heater. It features a large tank where water is heated and stored until needed.
This type of water heater is commonly used in residential settings and provides a steady supply of hot water.
Safety: Rheem water heaters, including the 85VP6S model, are designed with several safety features to ensure reliable operation and protect against potential hazards.
These safety features may include:
Temperature and pressure relief valve: This valve helps prevent excessive pressure buildup inside the tank by releasing water if the pressure or temperature exceeds safe levels.
Overheat protection: Built-in mechanisms monitor the temperature of the water and shut off the heating element if it becomes too hot, reducing the risk of scalding or damage to the unit.
Flammable vapor ignition resistance: Some models are equipped with technology to prevent ignition of flammable vapors outside the water heater, providing an additional layer of safety.
Enhanced corrosion resistance: Corrosion-resistant materials and coatings help prolong the lifespan of the water heater and prevent leaks or failures.


New storage water heater:

Rheem EHG-30 Water Heater

The Rheem EHG-30 is an electric storage water heater manufactured by Rheem, a well-known company in the HVAC and water heating industry.
Here’s an overview of its type, efficiency, and safety features:
Type: The Rheem EHG-30 is a storage water heater, meaning it heats and stores water in an insulated tank until it’s needed.
It operates by using one or more electric heating elements to heat the water within the tank.
Safety Features: Rheem water heaters, including the EHG-30 model, typically include several safety features to ensure safe operation:
Pressure relief valve: This valve helps prevent excessive pressure buildup within the tank, reducing the risk of explosion.
Temperature and pressure relief valve: This valve opens to release pressure or water if the temperature or pressure inside the tank exceeds safe levels.
Overheat protection: Rheem water heaters are equipped with mechanisms to prevent the water from overheating, which could lead to scalding or damage to the unit.
Corrosion resistance: Many Rheem water heaters are equipped with features to resist corrosion, prolonging the life of the unit and maintaining water quality.
Insulation: Adequate insulation helps to minimize heat loss from the tank, improving overall efficiency and reducing the risk of burns from hot surfaces.

This heater unit has met the following requirements for a water heater:

Work Scope:

1. Supply of tank, pipe and fittings
2. Removal of old water heater
3. Pipe works partial redo to comply PUB Regualtion
4. New tank installation
5. Testing and commission. Submission to PUB
6. Clean up before leaving
7. PUB approval letter

Regulatory Compliance:

The electric water heater, as a whole unit, shall be tested.
This includes parts such as the heating element, pressure relief valve, temperature relief valve, and water tank.
That work is done in accordance with the following:
1. AS/NZS 4020:2018 Appendix K – Sample extraction procedure for use with water heating system.
An accredited or non-accredited test report for Appendix K is acceptable provided that the test laboratory is accredited by Singapore Accreditation Council (SAC) to AS/NZS 4020:2018 Appendix H on Extraction of Metals, at the point of testing;
2. The samples extracted in accordance with Appendix K shall then be tested in accordance with AS/NZS 4020:2018 Appendix H – Extraction of metals (for metallic materials in contact with water).
The maximum allowable concentrations of metals listed in Table 2 of AS/NZS 4020:2018 shall not exceed the limits specified by the World Health Organization (WHO) Guidelines for Drinking Water Quality.


Reason for the Replacement: End of service life

Our  licensed water service plumber has ensured that work is done in accordance with the conditions stated below:

  1. All water service installations must be in accordance with the Public Utilities (Water Supply) Regulations, Singapore Standards 636 for Water Services and all other relevant statutory requirements.
  2. The proposed works shall not adversely affect the existing water supply reticulation system.
  3. Proposed water storage heater is installed in accordance with the specifications and requirements of the manufacturer.
    The installation of double check valves is safe and effective to prevent backflow and the back siphonage of water from the storage water heater through the heater inlet pipe and will be safe for use.


In conclusion, the Rheem EHG30 Water Heater is a high-quality and reliable product that meets all necessary regulatory requirements.
The installation was carried out in compliance with PUB regulations, ensuring the safety and effectiveness of the new water heater.
We are pleased to inform that we have received the PUB Approval Letter for the installation.
This letter means that PUB has a record of this heater replacement job and it is authorized.


Read More About Us

Homeone Home Page
About Us
Contact Us

Our Water Heater Services

#Storage Water Heater
#Gas Heater

Follow our Social Media


Got A Question?

Feel free to reach out to us, if you have any enquiries

Log Out

Are you sure want to log out?