Heater Installation

Heater Installation

There are two kinds of water heaters popular in Singapore, the instant water heater and the storage water heater. Instant (or tankless) water heaters are the low-cost and easy-to-install water heating solutions. Their disadvantages include the inability to warm the water enough and the relatively low pressure of the water output. Storage water heaters, on the other hand, normally come with a storage tank that can hold up to 35 liters of water. They are more expensive compared to tankless water heaters and take around five to 10 minutes to produce warm water which is available even when the power is out. 

The installation method depends on which water heater you use. Here are the steps to set up an instant water heater (whose installation you can DIY) and a storage water heater (whose installation is best done by a home service professional).

How To Install an Instant Water Heater

Installing an instant or tankless water heater is a task that you can perform without encountering much difficulty or complication. The steps are fairly easy to follow. Alternatively, follow the manufacturer’s manual of your instant water heater.

  1. Switch off the circuit breaker. If you can’t figure out which breaker goes with the circuit for the water heater’s power supply, be safe and turn off the distribution box itself and use a portable light source instead while installing the water heater.

  2. Turn off the water supply, as well.

  3. Remove the front cover of the instant water heater. Connect to both the water supply and electrical supply. The cables must be secured between the front cover and the water heater unit.

  4. Mount the part of the instant water assembly that has the attachments to both the water supply and the power supply. This means that the front cover is still not latched in place yet. Ensure that the screws are tight and that the mounted unit is stable. The water heater must also be not too far up and is accessible in case of an emergency. 

  5. Connect the pipe to the faucet where you want the hot water to go. 

  6. Close up the front panel and check if the water heater works properly by turning on the water supply and switching the circuit breaker back on.

How To Install a Storage Water Heater

In the same way you turn to a skilled and experienced handyman for your tap installation, switch installation, and cabinet installation, consider booking an appointment with a home service professional who has both plumbing and electrical wiring skills for your storage water heater installation–and most especially in repairing a storage water heater. Meanwhile, the generalized steps to safely carry out the installation of a storage water heater are detailed in a video on an Energy Market Authority webpage, which you will find here. 

Choosing Your Water Heater: Instant vs. Storage

Selecting the right water heater is crucial for comfort and efficiency in your Singapore home. The choice between an instant (tankless) and a storage (tank) system affects your daily routine, utility bills, and available space. The following table provides a clear, detailed comparison to help you make an informed decision that best fits your household’s needs and your property’s constraints.

FeatureInstant Water HeaterStorage Water Heater
Basic Working PrincipleHeats water on-demand as it flows through the unit. No stored hot water.Heats and stores a large volume of water in an insulated tank, keeping it hot and ready for use.
Best ForSmall households (1-3 persons), bathrooms with limited space, and those with low to moderate simultaneous hot water usage.Larger households (4+ persons), homes with high simultaneous hot water demand (e.g., multiple showers at once), and those who prefer a constant, ready supply.
Space & Installation RequirementsCompact and lightweight. Mounts directly in the bathroom, often inside the false ceiling or on a wall. Ideal for small HDB toilet yards and condos. Requires a dedicated high-power electrical supply (40A DP isolator).Bulky and heavy. Requires significant space, typically installed outside the bathroom (e.g., service yard, balcony) or in a dedicated cupboard. Needs a standard 13A/15A power point and a floor/wall strong enough to bear its weight when full.
Hot Water SupplyUnlimited, but flow-limited. Provides a continuous stream of hot water for as long as needed, but the flow rate (litres per minute) is limited by the heater’s power.Limited, but high-flow. Provides a fixed volume of hot water (e.g., 15L, 30L). Once the tank is depleted, you must wait for it to reheat. Supports high flow rates for powerful showers.
Energy Efficiency & Operating CostGenerally Higher Efficiency. Only consumes power when in use. No “standby” heat loss. Leads to lower electricity bills for households with intermittent hot water use.Generally Lower Efficiency. Continuously uses energy to reheat the stored water and maintain its temperature (“standby heat loss”), resulting in higher overall energy consumption.
Upfront Cost (Unit + Installation)Lower to Moderate. The unit itself is often less expensive. However, installation can be costlier if new, high-capacity wiring is required.Moderate to Higher. The storage tank unit is typically more expensive. Installation is generally straightforward if the space and plumbing points are pre-existing.
Installation ComplexityCan be Moderate to High. Involves electrical work (running a dedicated 40A circuit from the DB box) and securing the unit, often in a confined or elevated space.Typically Moderate. Primarily involves heavy mounting, connecting to existing water pipes, and ensuring a proper waste pipe for the Pressure Relief Valve (PRV). Less complex electrical work.
LifespanLonger (15-20 years). Fewer mechanical parts and no risk of tank corrosion from standing water.Shorter (8-12 years). The internal tank is susceptible to sediment buildup and corrosion over time, which eventually leads to leaks and failure.
Common Household ScenariosPerfect for a quick morning shower, washing hands, and single-point use. Struggles if someone tries to use the shower and the kitchen tap simultaneously.Excellent for filling a large bathtub, running a shower and the washing machine at the same time, or back-to-back showers without a drop in temperature or flow.
Key Considerations in Singapore– Mandatory for some older HDB flats without structural support for a heavy storage heater.
– Excellent for saving space in compact bathrooms.
– Energy savings align with Singapore’s sustainability goals.		– Requires HDB/condo management approval if mounting externally.
– The 30L+ models are common for families.
– The “standby” energy loss is a constant, albeit small, drain on your utilities.

Need help choosing or installing a water heater in your HDB flat? FixFirst’s certified handymen handle both instant and storage units with HDB-compliant techniques — from electrical upgrades to secure mounting. 

Further Readings on Water Heaters

In Singapore, the Consumer Product Safety Office has an accessible guide called “Safety Tips on Electric Water Heaters” for households running water heaters in their flats and are interested in knowing the ins and outs of safely operating the appliance. Additionally, the National Environment Agency has shared “Energy Saving Tips” to help minimize the power consumption of residential water heaters.

Why Choose FixFirst as Your Water Heater Installer

When it comes to water heater installation Singapore price, affordability shouldn’t mean cutting corners on quality or safety. At FixFirst, we strike the perfect balance: competitive pricing without compromising on workmanship. Our transparent quotes ensure you know exactly what you’re paying for, with no hidden costs. Whether you need a straightforward replacement or a complex setup, our pricing structure remains fair, clear, and tailored to your needs.

Not all installers are created equal, and the best water heater installer Singapore isn’t just about technical skill but about reliability, professionalism, and a deep understanding of local requirements. Our technicians are licensed, highly trained, and intimately familiar with Singapore’s housing infrastructure, from modern condos to older HDB flats. We don’t just install water heaters; we ensure they perform efficiently, last longer, and adhere to strict safety standards.

For HDB water heater installation, precision matters. HDBs come with unique constraints, including limited space, specific piping layouts, and strict compliance regulations. Our team specializes in navigating these challenges smoothly. We assess your bathroom’s configuration, recommend the ideal heater type (storage or instant), and execute installations with minimal disruption. The result? A system that fits perfectly, works flawlessly, and meets HDB guidelines without hassle.

If you’re searching for the cheapest water heater installer Singapore or water heater installation price Singapore, you might be after budget-friendly rates. Be wary of fly-by-night operators offering rock-bottom prices. Low upfront costs often lead to shoddy work, leaks, or even electrical hazards. FixFirst delivers value, not just low water heater installer Singapore price, but dependable service that saves you money in the long run. Our installations reduce energy waste, prevent frequent repairs, and extend your heater’s lifespan, making us the smarter investment.

Beyond technical expertise, we prioritize your convenience. Same-day service? Done. Honest recommendations? Always. Post-installation support? Unwavering. From selecting the right model and ensuring the budget friendliness of your Singapore water heater installation cost down to final testing, we handle every detail so you can enjoy hot water without the stress. When you choose FixFirst, you’re not just hiring a contractor. You’re partnering with a team that cares about your comfort as much as you do.

Frequently Asked Questions (FAQs) – Heater Installation

At FixFirst, we install a wide range of heaters, including electric water heaters, gas water heaters, storage water heaters, instant (tankless) water heaters, solar water heaters, point-of-use water heaters, and heat pump water heaters. Whether you need a new installation or a replacement, our technicians are equipped to handle all types of heaters.

Yes, we provide heater installation services for both residential and commercial properties. Whether it’s for your home, office, or business, we can accommodate your needs.

Booking an installation service is simple. You can call or Whatsapp us at 89107700 or email us at admin@fixfirst.sg. Our team will contact you to confirm your booking and schedule a convenient time for the installation.

Yes, we offer same-day and emergency installation services, subject to availability. Let us know your urgency when booking, and we’ll do our best to accommodate your request.

To ensure a smooth installation process, clear the area where the heater will be installed. Ensure access to water and power connections and inform us if the installation site is in a hard-to-reach area.

The cost of installation depends on factors such as the type of heater, complexity of the installation, additional materials or parts required, and whether it’s a new installation or a replacement. We provide transparent pricing with no hidden fees. After assessing your requirements, our technician will give you a detailed quote before proceeding.

Absolutely! We provide on-site installation services across Singapore. Our technicians will come to your home or office to install your heater.

No problem! We offer removal and disposal services for old heaters as part of the installation process. Let us know in advance, and we’ll handle everything for you.

Most installations are completed within 2-4 hours, depending on the type of heater and the complexity of the setup. We’ll keep you informed throughout the process.

Yes, we use only high-quality heaters and materials to ensure the durability and performance of your installation. We also work with trusted brands to provide reliable products.

While DIY installation might seem cost-effective, it can be risky and may void your heater’s warranty. Improper installation can lead to safety hazards, leaks, or inefficiency. We recommend hiring a professional for safe and compliant installation.

To keep your heater in good condition, flush the tank periodically to remove sediment (for storage heaters) and check for leaks or unusual noises. And always, follow the manufacturer’s guidelines for usage and care.

Yes, we offer preventive maintenance services to keep your heater functioning efficiently. Regular maintenance can help extend the lifespan of your heater and prevent costly repairs.

Our technicians are highly trained and certified professionals with years of experience in heater installation. They stay updated on the latest technologies and safety standards to provide the best service.

We hope this FAQs section has addressed your concerns. If you have any other questions, don’t hesitate to contact us. At FixFirst, we’re committed to providing reliable, affordable, and efficient heater installation services in Singapore!