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9 Feb 2023

Joven JH35 Water Heater Block 136 River Vale Street Replaced with Rheem EHG25S 25L Water Heater on 6 Feb 2023

Replacement of  a Joven JH35 Water Heater at a Condominium , Block 136 River Vale Street , Singapore 540136.

  • Project location

    Block 136 River Vale Street , Singapore 540136

  • Property type


Joven JH35 water heater


Replacement of Joven JH35 Water Heater to resolve heater problems end of service life


Similar Rheem EHG25S 25L Water Heater is used for replacement. All pipe works connecting to the heaters are replaced with stainless steel. A new approved stop and double check valves are employed in accordance with the manufacturer’s specification. Such will comply with PUB. Our Licensed has supervised and approved the installation. There is a 1-year warranty by Homeone for this installation on top of the warranty provided by manufacturer.

The final result

Old storage water heater: Joven JH35 Storage Water Heater

New storage water heater: Rheem EHG25S 25L Storage Water Heater, This heater unit has met the following requirements for a water heater:

The electric water heater as a whole unit (i.e. parts incorporated in the water heater itself such as heating element, pressure relief valve/temperature relief valve, water tank, etc. shall be tested 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

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.

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