Old gas heater:
Rinnai REU-8CG
New Storage water heater:
Macro MA-10FE
When the homeowner reported no hot water from their Rinnai REU-8CG Gas Water Heater HDB, our licensed Homeone team carried out a detailed inspection. The findings included:
No Hot Water & Beeping Error Codes – The old battery-operated Rinnai unit displayed continuous error codes, indicating system failure.
Corroded Heater Exterior – After more than 17 years of use, the unit was visibly corroded, showing it had reached end-of-life.
Rusty Piping – The connected pipes were heavily rusted, raising safety concerns and reducing reliability.
Hard-to-Operate Valves – Gas and water stop valves were stiff and corroded, making them unsafe and difficult to operate.
Given these issues, the decision was made to replace the old unit with a Macro MA-10FE Gas Water Heater HDB, a trusted and reliable model for HDB flats in Singapore. The new heater operates on electric power, requiring proper supply and protective bonding.
All works were supervised by Homeone’s Licensed Gas Service Workers (LGSWs), in compliance with EMA safety standards, PUB regulations, and Singapore Gas Supply Regulations.
Gas & Plumbing Work:
Supplied and installed a new Macro MA-10FE Gas Water Heater HDB powered by Citygas
Replaced leaking pipes and fittings with PUB-approved components
Replaced faulty stop valves for long-term safety
Installed a new control panel for efficient operation
Electrical Work (Upgrade from Battery to Electric):
Connected the new heater to a dedicated electric supply
Used 2.5 mm² supply cables for the heater connection
Installed 2.5 mm² equipotential bonding cables for safety in line with regulations
Gas Supply Compliance:
Performed full testing and commissioning of the new heater
Issued a Final Pressure Test Certificate by a Licensed Gas Service Worker
After-Sales Service:
1-Year Homeone Engineering Warranty covering workmanship
1-Year Manufacturer Warranty on the Macro MA-10FE water heater tank
The Rinnai REU-8CG Gas Water Heater HDB had exceeded its service lifespan. Multiple failures, including corrosion, gas leaks, stiff valves, and failing electronics, made continued operation unsafe.
Replacing it with a Macro MA-10FE Gas Water Heater HDB ensures:
Safe and reliable hot water supply
Modern electric-operated heating for improved control and efficiency
Certified installation in compliance with EMA and PUB standards
Peace of mind with warranty protection
Upon completion, you receive a Statement of Gas Appliances Testing Certificate immediately. This critical document confirms:
✓ Installation complies with Singapore Standard SS 608:2024 – Code of Practice for Gas Installations
✓ Installation meets Gas Supply Regulations 21 requirements
✓ The gas heater and entire house gas piping have been tested
✓ No gas escapes exist and the system is safe to use
Insurance policies do not cover any damage or injury caused by regulated work carried out by an unlicensed handyman without a valid Statement of Gas Appliances Testing Certificate. Working with licensed professionals protects both your safety and your financial interests.
Insurance policies do not cover any damage or injury caused by regulated work carried out by an unlicensed handyman without a valid Statement of Gas Appliances Testing Certificate. Working with licensed professionals protects both your safety and your financial interests.
If your Gas Water Heater HDB is over a decade old and shows signs of corrosion, leaks, or error codes, it’s a clear sign it’s due for replacement. Operating an old or failing heater risks safety and system failure.
The safest solution is to replace your old unit with a Macro MA-10FE Gas Water Heater HDB, installed and tested by licensed professionals, with proper electric supply and bonding for safe and reliable operation.
Project Location: 15 Toh Yi Drive HDB
