Over the last 100 years, hot and cold water systems have changed very little. Traditional systems would store cold water in tanks, feeding a hot water cylinder that would be heated by electric immersion, or by a boiler heated by solid fuel, oil or gas.
The introduction of power showers meant that our traditional hot water systems would need to change to accommodate our demands and needs. Ensuring that you have the right system to support your hot water requirements is extremely important. If you get this wrong you could be left disappointed and with a system that underperforms.
An unvented cylinder is a water heater that is sealed to the atmosphere and connected directly to the mains water supply. This enables the systems to deliver mains pressure hot and cold water to all outlets. This option has become the preferred choice for many developers, heating engineers, architects and end users due to the multiple benefits over traditional systems.
Unvented hot water cylinders are ideal if you are pushed for space as they don’t require a cold water storage tank. This also gives you more flexibility when siting the cylinder. The water can either be heated directly by your central heating system or indirectly by an immersion heater.
As all unvented cylinders rely on the mains supply for both pressure and flow, we recommend that adequate flow and pressure readings must be taken to establish the suitability of such systems. We would carry out these tests at the time of quotation.
Surab supply and fit both mains fed direct and indirect cylinders. We work closely with Stuart Turner, an internationally recognised pump and water boosting solutions provider, to ensure that we supply and install high-quality products.
Should you experience poor flow rates from your mains supply, we use both the MainsBoost and TwinBoost systems from Stuart Turner to ensure that you receive the ultimate unvented experience and performance.
With our many years of experience in the industry, our knowledgeable staff will discuss all your hot and cold water requirements and can provide the right solution for your needs. Our water system installations come with the manufacturers guarantee on all items that are fitted and a 3-year guarantee on our workmanship.
Get in touch with a member of the Surab team today to find out how you could benefit from a new water system.Free Quote >
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Frequently asked questions
Direct = Heated by the boiler.
Indirect = Heated by an immersion.
Direct cylinders are usually fitted where economy 7 or electric heating is installed.
We supply and fit both mains fed direct and indirect cylinders.
We work closely with Stuart Turner for pumped systems and mains boost.
We offer a 3-year guarantee on workmanship and manufacturers guarantees on all items fitted.