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Specialists in Electric Hot Water Cylinders
Interested in upgrading from a vented cylinder to an unvented cylinder? Perhaps you’re building a new home or renovating an existing one. Whatever the case, unvented cylinders offer dramatically better performance than older technology and mains pressure hot water at every tap.
However, you’ll find a wide range of models to choose from. How do you ensure you pick the right one? Here are five tips to guide you through the process.
One of the first considerations to make is the cylinder’s capacity. This should tie directly to the size of your family and your hot water needs. The larger the family and the more hot water needed, the greater the cylinder’s capacity should be. Generally, you should plan for 35 to 45 litres per family member/occupant per day. Resist the urge to go “too big”, though, as this can lead to additional costs, between more water needed to fill the cylinder and the chance that you’ll be reheating unused water over and over.
Unvented cylinders can use external heat sources, such as your boiler. This is called indirect heat. These models are usually more affordable than others, but they may not be the right option. You will also find unvented cylinders that have immersion heaters inside them, which produce direct heat. These units are more expensive, but they do not rely on an external source of heat to warm the water. That might be good news if you’re worried about your boiler breaking down, but it’s also good for homes without boilers or direct access to gas lines.
Unvented cylinders can be either vertical or horizontal and short or tall. You should determine the form factor and configuration based on where you want to install the cylinder within your home. For instance, if you’ll be installing it under the stairs with little clearance, a horizontal model might be the better choice. If you have plenty of space, then a vertical model might be the right decision.
While you can purchase an unvented cylinder that connects directly to your home’s electrical and/or gas system, some models offer additional connections. For instance, you may want to connect yours to a set of solar panels to help offset the cost of electricity. Base this decision on your anticipated future needs and goals, but also your current budget.
Finally, you should consider the brand of the cylinder. While there’s no need to overpay for an unvented cylinder, you will find that “discount” cylinders from brands you’ve never heard of may not offer the reliability that you deserve. It’s better to purchase from an established manufacturer, such as Gledhill, Albion, Megaflo, Kingspan, or HeatraeSadia.
Unvented cylinders must be installed, serviced, maintained, and repaired by G3-certified plumbers under UK law. That means you must choose the plumbing company you work with carefully.
At EasyFlow, we specialise in unvented cylinders and can help you make an informed decision when it comes to capacity, configuration, brand, and other considerations. We can also offer annual maintenance plans to keep your cylinder in great condition for years to come.
Vickie, Didsbury
10 April 2025
Annual Service
Raymond, Reddish
17 March 2025
No Hot Water
Brenda , Liverpool
12 February 2025
Installation
Gianfranco, Uk
18 February 2025
Annual Service
As always the serrvice was done efficiently and the surrounding area left clean and tidy.
Anne, Manchester
30 January 2025
Annual Service
Highly recommended, fast efficient service. Would definitely use again
john, M15 4GQ
9 January 2025
Annual Service
Excellent ,professional service from as has been the case for the past 8 years.
JUDITH, Glossop
30 December 2024
Annual Service
Tim, Warrington
12 December 2024
Replacement Immersion Heaters
Engineer was delayed a short time but called ahead to make us aware. Service fast and efficient.
David, Liverpool
11 December 2024
Annual Service
Brian, Wilmslow
10 December 2024
Annual Service
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