Convert: Gas to Storage Heaters

Are you planning to fix a storage heater in place of your existing gas heater? Use this 5-step guide to help you out.


1. Provide details of existing gas heater

Send a photo of your gas heater to us. Instead of just taking a close up of the heater, include also the space around it. Useful photos include, the top of aircon ledge, space available at aircon ledge, yard or balcony. This will be helpful for determining the position of your new storage heater.

Gas heaters are usually installed outdoors in case there is a gas leak. Storage heaters should be installed indoors or in a sheltered area as they are electrical appliances and are not weatherproof.

Other bits of helpful information you can provide:
– Is there a dedicated 15A switch available nearby?
– Have other neighbours done similar installations?
– Does your building management approve of the works?


2. Contact your building management for approval

Once you have confirmed a location for the new storage heater, contact MCST for approval. You may be asked to fill in an application for renovation works. HDB owners usually skip this step as their heaters are installed indoors.

HDB: The town council does not allow heaters to be fixed at the air con ledge.
Private: Most MCST will approve the changes, but it is possible to get rejected. Please seek approval before proceeding.


3. Call Citygas to terminate your gas supply

Things to expect:

  • Termination fees range from $40 to $100 to remove existing heater and shut off the gas point. Confirm that the team going up to your house will do both, some only do one.
  • Several homeowners told us that Citygas is unwilling to terminate the supply and are asking for many reasons, personal particulars and owner’s IC. This is similar to the termination of a mobile phone line.. It is not necessary to give out your life story and IC number.
  • Many homeowners also reported Citygas saying they cannot do the uninstallation and that homeowners should go and find their own uninstaller. Please do not perform an unauthorized uninstallation. It is safer to get contacts from Citygas directly. They should provide them on request.


4. Arrange to install the storage heater

Before the new storage heater is installed, the gas point must be cut and sealed for safety. Some homeowners insist that we fix the heater immediately without waiting for Citygas. We do not support such acts of bravery. For your safety, we cannot do the installation if gas point is not sealed. Shown below, a summary timeline:

Once you have a removal appointment with Citygas, you may proceed to arrange for the installation of your new heater. Try to give a 5 working day buffer for any uninstallation or installations. If you plan things right, the disconnection of gas can be done in the morning and the installation of the new heater on the afternoon of the same day (2pm onwards). This will minimize hot water downtime.


5. Summary of work required and estimated costs

For a brief recap, see below table for an overview of costs and works to expect.


Works Citygas AOS
Terminate gas Required 40 – 60
Disconnect heater Required 40 – 60
Install storage heater Required 130 – 160
Run water pipe Optional 0 – 100
Run power source Optional 150

Note on control panels:
Gas heaters usually come with a control panel, some are fixed on the heater and some are fixed on the wall. We usually leave the wall panels in place but if it bothers you, you may ask Citygas to remove the panel at the same time they remove the heater. To make up the gap in the wall, you will need to engage an external wall plasterer and painter.


Thats it! 
There you have it, a 5-step checklist that will hopefully give you a clearer picture of the process. If you have any other questions, or an update on the $$ table.. do reach out to us! We value all feedback and information you would like to share with the community.



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Amanda Zhong

Amanda Zhong

Amanda is the bookish personality of AOS Bath. She loves reading in quiet places over a good cup of tea. Like her other Gen Y peers, she has a penchant for advanced technology that delights and engages people.
Amanda Zhong

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