Instant Water Heater vs Storage Water Heater: Which Suits a Singapore Home?
Choosing between an instant water
heater and a storage water heater is one of the first decisions in any bathroom
upgrade. Both give you hot water, but they behave very differently day to day.
This guide compares them on the things that matter at home: hot water supply,
space, usage and installation.
How a storage
water heater works
A storage heater keeps a tank of heated water ready. When you open a
tap, hot water leaves the tank and cold water refills it, then heats again.
Because the water is already hot, you get a steady flow the moment you need it.
The trade-off is that the tank has a limit. In a busy household,
back-to-back showers can use up the hot water, and you wait for the tank to
reheat. The tank also keeps the water warm even when nobody is using it, which
means some standby heat loss.
How an instant
water heater works
An instant heater, also called a tankless heater, heats water only
when a tap opens. When you close the tap, the unit goes into standby. There is
no tank to fill or to run out, so hot water keeps coming for as long as the tap
stays on.
These units are compact and can be installed in bathrooms, including
where an old tank once stood. The Rheem Singapore range of instant
water heaters lists electric models with features such as soft-touch LCD
controls, antibacterial protection and a 3-in-1 compact valve on selected
series.
Hot water supply
If your priority is never running out, an instant heater has the
advantage. It provides continuous hot water, which suits families who shower in
sequence. A storage heater can handle the same family, but only if the tank is
sized properly.
Sizing depends on how many people live in the home and on peak-hour
demand, meaning the amount of hot water used in one continuous hour. A larger
household with overlapping showers needs more capacity than a couple who shower
at different times.
Space and layout
Instant heaters are compact, so they suit small bathrooms and tight
layouts. Storage heaters take more room, but modern designs help. Slim models
are made for tight ceilings and can be mounted left or right depending on the
layout. The Xwell Slim range, for example, comes in 20 L and 30 L options.
Check the space above the shower or in the service area before you
decide. Measure the position, not only the floor space.
Temperature
control and features
Some instant models focus on precise control. The Prestige series
lists steady-state temperature accuracy of plus or minus 1°C, with
touch-sensitive LCD displays. Others add safety features such as built-in surge
protection or splash-proof protection.
Storage models have their own features. Some use enamel-lined tanks,
anode protection and pressure relief valves, while the EHG Slim Smart range
adds Wi-Fi and app control. If you like smart controls, check which type offers
them.
Installation and
day-to-day use
Both types need professional installation. A qualified installer can
confirm whether your wiring, water pressure and bathroom layout suit the unit.
Rheem notes that listed contractors on its dealer locator are independent and
not Rheem-owned, so confirm credentials before you book.
After installation, register your warranty so you can verify it
later. The Rheem product education page is a
useful starting point if you want to understand how each type works before you
speak to a dealer.
Which one should you
choose?
Choose an instant water heater if you want continuous hot water, a
compact unit and a modern look. It suits bathrooms with limited space, and it
keeps the layout simple.
Choose a storage water heater if you want a tank with several size
options, or if your household uses hot water in short bursts across the day. It
is also a good fit if your bathroom has the room for a tank.
Questions to ask
before buying
Ask the dealer how many outlets the unit will serve, how many people
will use hot water at the same time and how the heater fits your existing pipes.
Ask what the warranty covers and how to register it. Ask where service is
available if something goes wrong.
Think about the long term too. A heater is something you rely on
every day, so choose the one that fits how you live rather than the one that
looks best in a catalogue.
Review the storage range
If you lean towards a tank, look at the storage water
heaters listed by capacity and features. Compare slim designs, enamel
linings and safety valves so you can match each unit to your bathroom.
The takeaway
An instant heater gives you continuous
hot water in a compact unit. A storage heater gives you a ready supply and more
size options. Decide by household size, peak demand and space, then speak to an
installer before you commit.
Comments
Post a Comment