Hot Water Cylinders

There are a number of different options when it comes to hot water cylinders.
The main three types:

 

Unvented Cylinders

This type of cylinder is now the most popular option where there is a high demand for hot water, for example, a 4 bedroom house with 2 bathrooms. tion as it’s space saving, energy efficient and gives outstanding performance.

This type of cylinder is mains fed which means you will be able to enjoy hot water at the same pressure as the cold. Meaning, where you have a good incoming mains pressure you will have the benefit of a high pressure shower.

 

Other great reasons to switch to an Unvented Cylinder;

  • no need for a bulky cold water tank

  • higher energy efficiency

  • faster hot water replenishment

  • higher flow rate

  • balanced hot and cold water

We install Santon Premier Plus and Megaflo unvented hot water cylinders.
Both are manufactured by Heatrea Sadia and come with up to 30 Years Warranty.

Vented Cylinders

Traditional vented cylinders need a cold water storage tank to fill them and require an open vent for the expansion.
This option is normally now only used when the incoming water mains pressure is low.
Vented cylinders can be used in conjunction with pumps to boost the water mains.

Thermal Stores

Thermal stores are very common in purpose built properties between 1990-2005.
They work by storing a body of hot water and passing mains water through a plate heat exchanger.
It’s very uncommon to install thermal stores now, especially with the advancement in unvented cylinders its almost always the better option.

 

All of these systems come in two options, direct and indirect.

Direct Cylinders would normally be found in a property that doesn’t have gas. The water is heated via the immersion heater only.

 

Indirect cylinders are heated by an external source, such as a gas boiler. Hot water heated by the boiler is passed through a coil inside the cylinder, this in turn heats the water in the cylinder. Indirect Cylinders will normally have an immersion as a secondary back up.

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