Water Heater Singapore
Reason for the Call-Out:
The client experienced persistent issues with their existing Rheem water heater not working due to intermittent failures. They required a new, reliable unit.
HDB
Rheem Water Heater Not Working: EHG-30 Replacement at 415A Fernvale Link HDB
A homeowner at 415A Fernvale Link reported a Rheem water heater not working. The ageing EHG-30 unit was replaced with a new Ariston PERO RS J 25. The installation included upgrades to ensure full PUB compliance.
Existing Heater: Rheem EHG-30
New Heater: Ariston PRO RS J 25
Date Of Replacement: 17 Mar 2025
Project Location: Fernvale Link
Before Replacement:
The existing Rheem EHG-30 heater had surpassed its lifespan and displayed internal tank leaks. The system also lacked proper electrical bonding and a connection box, posing compliance and safety concerns.
After Replacement:
A new Ariston PERO RS J 25 water heater was professionally installed with upgraded stainless steel fittings, new electrical bonding, and a compliant connection box. The new system now operates safely and efficiently under full PUB compliance.
Inspection Findings 
- Internal tank leakage in the Rheem heater
- Repeated malfunctions reported
- No electrical bonding present
- Absence of a proper electrical connection box
- Age-related wear in pipework and fittings
New Components Replaced:
- Ariston PERO RS J 25 heater unit
- Stainless steel flexible inlet/outlet hoses
- New double-check valve
- Electrical bonding cable and terminal
- New connection box
Replacement work scope:
- Shut off the main water and electrical supply
- Dismantled the faulty Rheem EHG-30 unit
- Assessed and marked the damaged ceiling area
- Installed new Ariston PRO RS J 25 heater
- Laid new stainless steel inlet/outlet & drain pipes and fittings
- Added a new electrical connection box and the electrical bonding
- System tested, verified hot water flow
- Site cleaned and handed over
- Documentation for PUB submission
Our PUB Licensed Plumber has endorsed that work is done in accordance with the conditions stated below:
- 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.
- The proposed works shall not adversely affect the existing water supply reticulation system.
- The 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 in preventing backflow and the back-siphonage of water from the storage water heater through the heater inlet pipe, and will be safe for use.
Conclusion:
All works were carried out by Homeone’s experienced technicians under the supervision of a Licensed PUB Plumber. Installation met all PUB and HDB safety standards, and formal PUB submission was completed upon job completion.