4 Point Water Heater Installation Checklist for Singapore

After you have combed through the many types of water heaters in Singapore to choose the one that fits your needs and requirements, the next most important thing to consider is the installation process. You may have bought the best water heater in Singapore, but if you engage an incompetent and dangerous installer, your water heater might still land you in hot water, and not the kind you’ve been dreaming about when you were buying it.

So how do you instantly ensure your water heater installation was done correctly? Read on to find out what 4 important points on the checklist you need to verify to confirm that your water heater is installed correctly in Singapore. Also included some images of what may happen in installations that are completely wrong – we’ve seen heaters installed sideways!

4 Point Checklist For Water Heater Installations in Singapore

Getting a good installer

An incorrect installation may be dangerous or result in irregular water pressure or temperature. After receiving some images of heater installations from homeowners, we decided to put together a quick checklist of the important things you must look out for to ensure your water heaters are installed correctly.

1. Heater Mounting

The A. O. Smith (AOS) water heater is mounted on two brackets inserted into two drill points on the wall. The upper holes of the supporting rack of the heater are mounted on these brackets. The brackets may look small but they are designed to hold up to three times the weight of the water heater when completely filled with water.

Please ensure your heater tanks don’t look like they are free-falling off the wall like King Kong on the Empire State Building. This is a sure sign of an incorrect installation and even if you know nothing about heaters, the image above on the left should give you the creeps.

2. Water pipes

The most common choice of water pipes for residential installations are copper and stainless steel pipes. Both are equally durable. Some homeowners prefer stainless steel pipes to match their bathrooms; some prefer copper pipes as there are fewer kinks in the bends. Most people do not have a preference but if you do, the onus is on you, the homeowner, to let the installer know this before the installation.

PPR or Polypropylene Random pipes may be used but this is rare and usually used for commercial purposes. Do not ever use flexible hoses for the connection to your water heater as they are not strong enough and may burst in the long run.

3. Relief valve connection

Often overlooked is the relief valve connection. Like air conditioners, water heaters give out droplets of water while in operation. These droplets are released from a relief valve. A tube is connected to the relief valve and the droplets of water are drained off into a drainage point. The tube must be downward facing.

The rubber tube is often misplaced and not installed from the valve to the drainage point. Do ensure your installer does not dispose of it with the rest of the carton boxes and packaging!

4. Mini stopcock valve

This stopcock valve is installed at the water pipe connected to the inlet (blue side). The stopcock valve comes in useful if your heater is leaking or if you need to cut off the incoming water supply to the water heater for repairs.

Wrong Installation FAQ

Is it wrong to install water heaters in a vertical position?

Some heater models are designed to be installed only vertically. So, you should install others horizontally. Our advice is to ask us or your heater manual. We will help you find the right way to install it.

Yes. But, do make sure to use proper ceiling Omega Brackets and rods. Using wall mounted brackets on a ceiling installation is wrong. It will cause your heater’s safety devices to malfunction. The wrong installation will damage the inner workings of the heater and void its warranty. 

The drainage tube of your water heater must never be blocked and always be facing downwards. Installing it wrongly will cause your pressure relief valve to malfunction. This is one of the 3 safety devices of your heater!

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Amanda is an education specialist at AOS Bath. She enjoys building a trusted network by sharing knowledge. Making difficult concepts simple and engaging is rewarding, on both ends.