Water Heater

A reliable supply of hot water is the difference between a good bathroom and a great one. At Big Bath we stock instant (tankless), storage tank and solar water heaters, sized for a single shower or a whole family bathroom, across 10 showrooms nationwide — with in-house installation available.

Types of Water Heaters

Instant (Tankless) Water Heaters

Heat water on demand as it flows through the unit — no storage tank. Compact, energy-efficient and never runs out, ideal for a single shower or basin.

Storage (Tank) Water Heaters

Store hot water in an insulated tank (commonly 40–100 litres) ready for use. They deliver steady pressure and can serve multiple outlets at once — good for family bathrooms.

Solar Water Heaters

Use roof-mounted solar collectors to heat water for free, backed by an electric element for cloudy days. The lowest running cost over time and an eco-friendly choice.

How to Choose the Right Water Heater (Quick Checklist)

1. Match it to your demand. A single shower or basin suits an instant heater; a family bathroom with multiple outlets needs a storage tank or solar system.
2. Check your water pressure. Instant heaters need steady flow to trigger heating; at very low pressure a storage tank model is more reliable.
3. Count your outlets. Instant heaters usually serve one outlet; storage and solar systems can feed several taps or showers at once.
4. Power source. Electric is easiest; solar slashes running cost but needs roof access and a higher upfront budget.
5. Plan the install. Water heaters mix plumbing and electrical work — our team handles both safely.

Water Heater Features to Look For

• Right capacity — matched to household size and outlets.
• Safety cut-out — auto shuts off on overheating or dry-fire.
• Pressure relief valve — safe operation on storage tanks.
• Built-in shower set — common on instant heaters.
• Backup electric element — on solar systems, for cloudy days.

Related Categories

• Instant Water Heaters — tankless on-demand heaters.
• Storage Water Heaters — insulated tank heaters.
• Solar Water Heaters — solar hot-water systems.
• Rain Showers — showers to pair with your heater.
• Bathtubs — deep soaks need a big heater.

Frequently Asked Questions

What types of water heaters are there?

Three main types: instant (tankless) heaters that warm water on demand with no tank, storage (tank) heaters that keep a tank of hot water ready, and solar water heaters that use the sun with an electric backup. Each suits a different household and budget.

Instant or storage water heater — which is better?

An instant heater is compact, cheap to run and never runs out, but usually serves one outlet and needs steady water pressure. A storage tank heater holds a fixed volume but delivers stronger, steadier pressure and can feed several outlets — better for families. For the lowest long-term running cost, choose solar.

How big a storage water heater do I need?

As a rough guide, 40 litres suits 1–2 people, 50–60 litres a small family, and 80–100 litres+ a large family or a bathroom with a bathtub. Bigger tanks cost more to run, so size to your real use.

Do instant water heaters need high water pressure?

They need steady flow to trigger the heating element — at very low or uneven pressure they may not heat well. If your pressure is low, a storage tank heater is usually the more reliable choice.

Are solar water heaters worth it?

In sunny Malaysia, yes. A solar water heater sharply cuts your electricity bill over its life, with an electric backup element for cloudy days. The upfront cost is higher, so it pays back fastest for households that use a lot of hot water.

Can a water heater feed more than one bathroom?

Storage tank and solar systems can — they store hot water and feed multiple outlets. A single instant heater normally serves one shower or basin; for two bathrooms you would usually fit a second instant heater or a larger storage/solar system.

Do you deliver and install water heaters?

Yes. Big Bath has 10 showrooms nationwide and in-house installers across Peninsular Malaysia who handle both the plumbing and electrical connection, with ready stock in Kota Kinabalu (Sabah) and Kuching (Sarawak). WhatsApp your nearest branch.