The owner was experiencing issues with their out-of-lifespan German Pool 150L heater. This Boat Water Heater Replacement was carried out by Homeone-trained technicians under the supervision of our PUB-licensed plumber.
The new installation is a compliant upgrade meeting PUB requirements, including a double check valve, proper drain discharge, a stop valve, and correct electrical bonding.
Old Storage Water Heater: German Pool GPC-150
New Storage Water Heater: Rheem EHG-55S
With the existing German Pool 150L heater no longer operating safely, the owner engaged us to provide a compliant upgrade. The Boat Water Heater Replacement took place at Marina Country Club (Punggol Marina), carried out by our technicians and supervised by a PUB-licensed plumber. The newly installed unit adheres to all required PUB guidelines for safe and reliable operation.
These omissions created safety hazards and breached multiple PUB and national standards.
The previous installation did not include a double check valve, which is mandatory under Singapore Standard SS 636.
Without it:
Contaminated water can backflow into the clean water supply
Public health risks increase significantly
The installation is non-compliant with PUB regulations
The heater had no safe discharge route for water released during normal operation or emergencies. This often results in:
Water damage to interiors
Mould growth
Electrical hazards
Increased risk of scalding
Voided manufacturer warranty due to non-compliance with PUB standards
This violates the Water Supply Regulations and the Sewerage and Drainage Act, which require all water service works to follow the relevant Singapore Standards.
The original heater lacked electrical bonding—an essential safety requirement for all storage water heaters in Singapore.
Failure to install proper bonding can cause:
Electric shock hazards
Fire risks from stray current
Non-compliance with electrical safety regulations
Dismantling
Isolated the water and electrical supply for safety
Removed the leaking storage water heater and disconnected old fittings
Disposed of corroded pipes, valves, and worn insulation materials in accordance with PUB standards
Installation
Supplied and installed a new storage water heater with secure wall mounting
Installed new check valve, drainpipe, and stop valve to ensure proper pressure control and discharge
Reconnected cold and hot water supply lines using stainless steel pipes and PUB-approved fittings
Upgraded the electrical undersized supply cable 1.5 mm² to 2.5 mm² to meet the heater’s operating load
Applied electrical bonding between the heater and pipework in compliance with SS 638 safety standards
Testing & Commissioning
Conducted leak and pressure tests to confirm watertight connections
Verified operation of the electrical isolator, thermostat, and heating element
Checked temperature control and overall heater functionality to ensure compliance with manufacturer specifications and PUB requirements
Our job was completed together with the required PUB submission. This ensures all plumbing works meet PUB’s standards and comply with Public Utilities (Water Supply) Regulations — a key part of doing the job safely and correctly.
A compliant replacement—installed to PUB requirements and properly supervised—protects your vessel, your occupants, and your warranty.
Choosing a fully compliant installation ensures:
✅ Clean, safe water
✅ No risk of backflow
✅ Correct pressure management
✅ Safe electrical operation
✅ PUB-approved workmanship
Licensed & compliant works only.
📞 Call Now +65 6742 6770 💬 WhatsApp +65 8816 6770If you smell gas: turn off the valve, ventilate, avoid electrical switches.
