01473 276686Open 8:00am-5:00pm Mon to Fri

01473 276686Sales advice & customer services

08:00 - 17:00
08:00 - 17:00
08:00 - 17:00
08:00 - 17:00
08:00 - 17:00
Online contact us formCreate return request
0 ItemsTotal £0.00Total £0.00
Your shopping basket is empty

Heater Shop offers a wide range of hot water cylinders and tanks to meet the needs of our customers. Our inventory includes products made from various materials, sourced from trusted and reputable manufacturers in the UK, including Rointe, Gledhill, and Stiebel Eltron. These hot water solutions are suitable for use with different heating systems, providing versatility and convenience.

Welcome to Heater Shop, your one-stop destination for top-quality water cylinders. We are dedicated to providing you with the best products and services in the market. Our aim is to make your online shopping experience as smooth and hassle-free as possible.

We understand the importance of having access to reliable and efficient water tanks, which is why we have carefully curated a wide range of products that meet the needs of homeowners, builders, and plumbers alike. Whether you are looking for a vented or unvented cylinder, a copper or stainless steel model, or a specific brand, we have got you covered.

In addition to our extensive product range, we also pride ourselves on our exceptional customer service. Our team of experts is always on hand to answer your questions, provide advice, and help you choose the best product for your needs. We also offer fast and reliable delivery options, so you can get your product delivered straight to your doorstep.

So, whether you are renovating your home, building a new property, or simply need to replace your existing water cylinder, trust us to provide you with the best products and services in the market. Browse our website today and discover why we are the go-to destination for water cylinders.

Our Range

Water cylinders are essential components of a domestic heating system that provide hot water to taps and showers. They are available in various types, each suited to different needs and preferences. Here is an overview of the range of water cylinders available for use.

cylinder hot water

Indirect Cylinders

Indirect water cylinders, also known as thermal stores, are heated by an external heat source, such as a boiler or a heat pump, and they contain a coil that transfers the heat to the water inside the tank. Indirect models are more efficient than direct ones, and they can be powered by various heat sources, including renewable energy sources. They are suitable for most households and can provide hot water to multiple taps simultaneously

In an indirect tank, cold water from the main supply is circulated through a coil of piping in the tank. This coil is heated by the heating source, which warms the water in the tank. The hot water is then drawn off as needed for use in the building.

One of the benefits of these systems is that they are very efficient. Because the heat source is separate from the storage tank, the system can be designed to maximise the energy efficiency of both components. Additionally, they are generally very reliable and require little maintenance. Another advantage is that they can be easily integrated with other types of heating systems, such as solar water heating systems or heat pump systems. This makes them a flexible and versatile option for many types of buildings. The Gledhill Envirofoam Copper is an excellent illustration of this point.

Overall, they are a popular choice for hot water heating due to their efficiency, reliability, and versatility.

Direct Cylinders

A direct model is a type of hot water storage system that, unlike conventional hot water storage systems that rely on a cold water storage tank and a separate cylinder connected by a network of pipes, a direct water cylinder integrates both the cold water storage and hot water storage into a single, sealed unit.

The key advantage is that it provides a constant supply of hot water at a higher pressure than conventional systems, making it ideal for high-demand situations such as homes with multiple bathrooms. The system works by heating the water directly from the main water supply, rather than relying on a separate boiler or immersion heater, which allows it to provide hot water at a much faster rate.

Additionally, direct models are generally considered to be more energy-efficient than conventional systems, as they do not rely on a separate heat source to heat the water. This makes them an attractive option for homes and buildings looking to reduce their energy consumption and lower their carbon footprint.

It is important to note that they require careful installation and maintenance, as they are pressurized systems that can pose a risk of explosion if not installed and maintained properly. Additionally, they typically require a higher initial investment compared to conventional hot water storage systems.

One excellent example is the Dimplex Quantum, which is the most advanced model that has ever been produced anywhere in the world. The Quantum cylinder is the ideal companion to the Quantum space heater for a complete heating and hot water system, or as a standalone hot water system for the electrically heated home. It was designed and developed by Dimplex's own in-house team of experts, and it is available in two configurations: as part of a complete heating and hot water system, or as a standalone hot water system.

unvented cylinders
hot water tank and unvented hot water cylinder

Vented Cylinders

Vented water cylinders are the most traditional type of cylinder, and they require a cold water tank usually located in the loft space. The water in the cylinder is heated by an external heat source, typically a boiler or immersion heater, and the hot water is drawn off from the top of the tank. Vented models are simple and inexpensive, but they are not suitable for homes with low water pressure, as the water flow rate depends on the height of the tank above the taps.

Our models typically have a capacity of around 100-150 litres and are made of stainless steel, copper, or enamel-coated steel. They come in a range of sizes to suit different heating and hot water requirements, and can be installed in a variety of locations, such as a loft, cupboard, or basement such as the Gledhill Envirofoam Copper.

One of the main benefits is their simplicity. They do not require a pump or expansion vessel, as the vent pipe provides the necessary pressure regulation. This makes them relatively low-maintenance and easy to install. However, it is important to note that vented water cylinders are not as energy efficient as unvented systems, as some of the heat is lost through the vent pipe. Additionally, the vent pipe must be installed correctly and maintained regularly to prevent leaks and other issues.

Unvented Cylinders

Unvented water cylinders, on the other hand, do not require a cold water tank and can be installed anywhere in the house. They are called "unvented" because they do not rely on a vent pipe to the outside to regulate pressure. Instead, they are directly connected to the mains water supply, which provides high pressure and a constant flow rate. Unvented cylinders are more expensive than vented ones, but they are more efficient and suitable for larger households with multiple bathrooms.

The main advantage of an unvented system is that it provides high water pressure, which means that you can have strong, powerful showers and quick filling baths. Additionally, they are generally more energy efficient than vented systems as they have better insulation and heat loss is reduced.

They come in a variety of sizes to suit different needs and are usually made of stainless steel, which is durable and long-lasting. They typically have a number of safety features built in, including pressure relief valves and temperature controls, to prevent over-heating or over-pressurisation. It is important to note that unvented systems must be installed by a qualified professional, as there are strict regulations in place to ensure the safety of these systems. Regular maintenance is also required to keep the system running smoothly and safely.

In conclusion, they are a popular choice for those looking for high water pressure and energy efficiency. However, it is important to consider the costs associated with installation and maintenance, as well as the regulations involved, before choosing this option for your home or building.

The Gledhill Stainless ES is an excellent example, and it comes in capacities ranging from 90 to 250 litres.

water cylinders and indirect cylinder unvented

In summary, the range of water cylinders available includes vented and unvented, direct and indirect. Your choice of cylinder will depend on your household's hot water demands, your available space, and your preferred heat source. It is essential to consult with a qualified heating engineer to determine the most suitable cylinder for your home.

vented hot water cylinders and indirect hot water cylinders

Why use Heater Shop?

We prioritise the needs of our customers. Our sole concern is to ensure that the requirements of our clients are met, and this priority is reflected in the products we procure, the services we provide, and the quality checks we carry out. This means that we are making certain that we have products that are suitable for all types of styles and budgets, that our products are delivered on time and in perfect condition, and that we are actively seeking reviews and feedback from our customers. We consider the reviews and feedback that we receive to be your voice, and we enjoy listening to it. It reveals not only what we are doing correctly, but also what we are doing incorrectly, which enables us to continually assess and enhance the procedures we have in place.

We have a broad selection of products available for purchase. These can be found in a wide variety of configurations, including shapes, sizes, materials, styles, and colours. Every product comes with at least a one-year warranty, but the vast majority of them carry much longer guarantees—up to thirty years in some cases. We provide a free next-day delivery service throughout the majority of the United Kingdom, regardless of how much or how little you spend, and we also provide a 14-day return policy with no questions asked. Should you change your mind, all you have to do is send the item back to us unused and in its original packaging to receive a full refund. In addition, we offer a price match guarantee, which means that if you find one of our products sold elsewhere at a lower price, we will honour that lower price and match it.

If you have any questions regarding our water cylinders or would like to inquire about stock, please call one of our team members on 01473 276686. They will be more than happy to assist you with any questions or concerns you may have.

Delivery Times

Most of our products are kept in stock, in our warehouse in Ipswich. This means we can offer free next day delivery to our customers. Each range and individual product, state their estimated delivery time during checkout. We deliver to most UK locations with free, next day delivery as standard. To discuss delivery details, call us on 01473 276686.

delivery of unvented cylinder direct