Unvented Hot Water System

What Is An Unvented Hot Water System?

These unvented hot water systems are becoming increasingly popular in the United Kingdom. They involve a high efficiency pressurised cylinder that canbe attached to the cold water system. The water is delivered to the taps at a high pressure, and will send flowing hot water to taps and showers fast within your property.

Unvented hot water systems are highly efficient, and have the best recovery times enabling the system to heat up quicker. This helps the water in your pipes to stay hotter for longer. An added benefit to this system is that you won’t have to have a water tank fitted in your loft. The water running through your pipes will be a lot more hygienic. The water tank can be removed giving you extra storage space.

The new hot water cylinders no longer have to be placed in an airing cupboard. Many of the more modern houses do not have an airing cupboard, so these are great for these types of properties. This is due to the appliance not needing other types of force to push the water through the pipes, such as gravity. Having an immersion heater to heat up the water, means that the boiler doesn’t have to work as hard.

Here is a list of the benefits that an unvented hot water system will give you:


  • Shower pumps and boosters are no needed
  • Showers and water taps are more powerful and fast
  • Water heating is more efficient and the recovery time is faster
  • The removal of water tanks in the loft gives you more storage room
  • Duplex stainless steel fittings
  • Temperature stays warmer for longer
  • Comes with a 25 year guarantee
  • Installed anywhere on your property
  • Still require yearly maintenance, but very reliable



The cylinder heaters come in many sizes from capacities of 120 to 310 litres. Each system is reliable and of a high quality giving you great water pressure performance. The boilers our Plumber Manchester will install for you are the best to ensure great recovering times, and amazing times when it comes to reheating. No need to wait for the hot water to make its way through the pipes. You will get instant hot water as soon as you turn on the tap or other water appliance.

If this sounds like the water heating system that your property would benefit from give Direct Gas a call today. Our Plumber Manchester are always here to help, and will be happy to discuss any concerns with you.