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HOT WATER YOU
CAN RELY ON

Expert installation, upgrades, and
replacements for dependable hot
water every day

HOT WATER CYLINDERS

WHAT IS A HOT
WATER CYLINDER?

A hot water cylinder is a highly insulated tank that stores water once it has been heated. The water is heated by your boiler or heat pump, then kept at the right temperature so it is ready whenever you need it.

Because hot water is stored in advance, your heating system does not need to run continuously. This helps reduce energy bills while ensuring everyone in the household enjoys a reliable supply of hot water, with no cold surprises.

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VERSATILE

Hot water cylinders are a flexible solution for modern homes, with options to heat water either directly or indirectly.

RELIABLE HOT WATER

Hot water is stored and ready to use, so multiple taps, showers, or appliances can run at the same time without a drop in temperature.

ENERGY EFFICIENT

Well-insulated cylinders retain heat for longer, reducing how often your boiler or heat pump needs to run and helping lower energy bills.

DO I NEED A HOT WATER CYLINDER?

WHY SHOULD YOU GET A HOT
WATER CYLINDER?

If your home uses a system or open-vent boiler, or a heat pump such as air source, ground source, or water source, a hot water cylinder is an essential part of your heating and hot water setup.

Properties with two or more bathrooms, or a higher demand for consistent hot water, benefit from a system that includes a storage cylinder, ensuring supply is always available when you need it. For homes with lower water pressure that rely on a pump to improve shower performance, a hot water cylinder helps deliver water at the correct temperature and flow.

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DO I NEED A REPLACEMENT?

IS MY HOT WATER
CYLINDER IN NEED OF
REPLACEMENT?

Modern hot water cylinders usually come with a minimum 25-year guarantee and can last even longer when properly maintained. A qualified heating engineer can carry out thorough checks to determine whether your existing hot water tank needs replacing or not.

If you notice cold water in your hot water cylinder

If you spot a leak in your hot water cylinder

If you start hearing strange noises

If you notice discoloured hot water.

PRESSURISED VS VENTED

HOW DO HOT WATER
CYLINDERS WORK?

1. Pressurised unvented hot water cylinder :

Unvented cylinders connect directly to the mains, delivering stronger water pressure and efficient hot water distribution. They do not require a cold water storage tank, making them a compact, space-saving option.

2. Vented hot water cylinder :

Vented cylinders are supplied by a cold water tank, usually in the attic, and rely on gravity for pressure. A vent pipe links the cylinder to the header tank for safe operation.

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FAQS

SEE OUR FREQUENTLY ASKED QUESTIONS
A hot water cylinder is an insulated tank that stores hot water for use around your home. It is typically heated by a boiler, immersion heater, or renewable system such as a heat pump or solar thermal.
Most hot water cylinders last between 10 and 20 years, depending on the type, water quality, and how well it is maintained. Regular servicing can help extend its lifespan and keep it running efficiently.
Signs include inconsistent water temperature, leaks, unusual noises, rust-coloured water, or rising energy bills. If your cylinder is over 15 years old, it may also be worth considering a more efficient replacement.
Yes. Modern cylinders are highly insulated to reduce heat loss and improve efficiency. When correctly sized and installed, they can help lower energy bills and provide a more reliable hot water supply.

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