Unvented Cylinder

An unvented cylinder is a type of hot water system that does not use a gravity-fed water tank. Instead, it uses a pressurised system to deliver hot water to your taps.

Unvented cylinders are becoming increasingly popular as they offer a number of advantages over traditional systems.

One of the main advantages of unvented cylinders is that they can provide a much higher hot water flow rate. This is because they are not limited by the pressure of the mains water supply. This can be particularly useful if you have a large family or if you use a lot of hot water.

Unvented cylinders are also more energy-efficient than traditional systems. This is because they heat the water to a higher temperature, which means that you need to use less hot water to get the same level of heat.

Unvented cylinders are also easier to install than traditional systems. This is because they do not require a gravity-fed water tank, which can be difficult to install in some homes.

Considering and Unvented Cylinder?

If you are considering installing an unvented cylinder, there are a few things you need to keep in mind.

First, you need to make sure that your home has the correct plumbing to support an unvented system. Second, you need to choose the right size cylinder for your needs. Third, you need to have the cylinder installed by a qualified plumber.

Overall, unvented cylinders offer a number of advantages over traditional hot water systems. They can provide a higher flow rate of hot water, they are more energy-efficient, and they are easier to install. If you are considering installing a new hot water system, an unvented cylinder is a good option to consider.

Here are some additional things to consider when choosing an unvented cylinder:

  • The type of heating system you have. Unvented cylinders can be used with a variety of heating systems, including gas, oil, and electric. However, some types of heating systems are better suited for unvented cylinders than others. For example, gas combi boilers are a good choice for unvented cylinders because they provide a constant supply of hot water.
  • The size of your home. The size of your home will determine the size of unvented cylinder you need. A larger home will require a larger cylinder to provide enough hot water for all of your needs.
  • Your budget. Unvented cylinders can range in price from a few hundred pounds to several thousand pounds. It is important to set a budget before you start shopping so that you do not overspend.
  • The features you want. Unvented cylinders come with a variety of features, such as thermostatic controls, hot water timers, and frost protection. It is important to decide which features are important to you before you start shopping so that you can find a cylinder that meets your needs.

Once you have considered all of these factors, you can start shopping for an unvented cylinder. Be sure to get quotes from several different companies before you make a decision.


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