8 Jun 2024

Ferroli GS 16 OE TG Gas Heater Replacement With Macro MA-20WOD Gas Heater at The Greenwich on 27 May 2024

  • Project location

    The Greenwich

  • Property type


Ferroli GS 16 OE TG gas heater replacement at The Greenwich - 27 May 2024


Replaced Ferroli GS 16 OE TG Gas Heater at end of service life.


Replaced Macro MA-20WOD and corroded sections of cold water copper piping with new piping. Utilised single-use fittings during the replacement to ensure optimal joint integrity. Reconnecting old fittings again risks erosion, particularly in high-speed water systems, and raises the chance of corrosion in water and gas piping. This increases the risk of water or gas leaks. Replaced the faulty cold water sensor as part of overall maintenance to ensure optimal functionality.

The final result

Ferroli GS 16 OE TG Gas Heater Replacement

Old gas heater: Ferroli GS 16 OE TG

The Ferroli GS 16 OE TG Gas Heater is a product manufactured by Ferroli.
Ferroli is an Italian company known for producing heating and air conditioning systems.
Here are some general details about this gas heater:
1. Type: The Ferroli GS 16 OE TG is a gas-fired instantaneous water heater designed for efficient hot water delivery.
With a capacity to heat 16 liters per minute, it ensures a steady supply of hot water to up to four usage points simultaneously.
The heater features a hydraulic-type pulse ignition system and operates on a forced exhaust mechanism.
Equipped with a built-in pump, it can pre-heat water in a loop, minimizing water wastage in large apartments.
2. Installation: Designed for outdoor installation, the Ferroli GS 16 OE TG boasts a weatherproof body suitable for placement on an AC ledge or any external part of a building.
The digital wired remote control provides easy access to settings and temperature adjustments.
3. Safety: Safety is paramount with the Ferroli GS 16 OE TG gas heater.
Its hydraulic pulse ignition ensures reliable and controlled ignition, while the forced exhaust system safely expels combustion gases.
The weatherproof body protects it from outdoor elements, ensuring durability and safe operation.
Additionally, the digital wired remote control allows users to manage the heater without direct contact, enhancing user safety.
This design prioritizes both efficiency and security in residential settings.

New gas heater:  Macro MA-20WOD

The Macro MA-20WOD gas heater is a product manufactured by Macro.
Founded in 1988, Macro is now the biggest manufacturer of gas appliances in China and Southeast Asia.
Here’s some information regarding its type, efficiency, and safety:
1. Type: The Macro MA-20WOD condo model is an outdoor gas water heater with a weatherproof body for installation on the external AC ledge of buildings.
It provides instantaneous hot water with a flow rate of 20 liters per minute.
Capable of supplying hot water to four points of usage.
Comes with a digital wired remote control for easy operation.
Features hydraulic-type pulse ignition for efficient starting.
Utilises forced exhaust for optimal performance.
2. Installation: Proper installation is crucial for safety and optimal performance.
Gas heaters need professional installation for proper venting, gas line connections, and compliance with safety standards.
3. Safety: Ensure gas heater safety to prevent accidents like fires, gas leaks, or carbon monoxide poisoning.
Following manufacturer instructions and ensuring proper ventilation is essential for safe operation.

Licensed Gas Heater Replacement

Gas & Plumbing Work

1. New Gas Heater Supply and Installation.
2. Gas Valve & Stop Valve Replacement
3. Pipe Works Partial Redo to comply with PUB
4. PUB Regulated Fittings Supply
5. New Control Panel Replacement

Electrical Work

6. Electric wire connects to the isolator
7. Protective equipotential bonding

Gas Supply Compliance

8. Testing and commissioning.
9. Issuance of test certificate by Licensed Gas Service Worker in accordance with Gas Supply Regulation.
This is required by law for your safety.

After Sales Service

10. Homeone Engineering Warranty for 1 Year
11. Tank Covered by Manufacturer Warranty for 1 Year

Gas Heater Installation

  1. Gas Heater Supply
  2. Gas Heater Installation Workmanship
  3. Pipe and Fittings Comply with PUB Regulation
  4. Clean up before leaving
  5. Gas Testing Certificate
  6. One-Year Homeone Engineering Warranty

Gas Heater not Working

If your gas heater is not working, there could be a number of possible causes.
One common issue is a lack of gas flow.
This can occur if the gas valve is turned off or if there is a problem with the gas supply.
A faulty thermocouple or ignition system may hinder the heater’s proper ignition.
Check the gas supply and line for issues if your heater malfunctions.
Consider seeking professional help if basic checks fail to resolve the issue.
Regular maintenance and cleaning can help prevent gas heater issues and ensure safe, efficient operation.


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