H.W. Systems | Hot Water System Weymouth | Porter Plumbing
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Unvented Hot Water

This is a system often specified by home makers who want a versatile output but need to save as much space as possible.

An unvented hot water cylinder means there is no need for a cold water storage tank whilst still keeping all the benefits of a conventional system and more.

All you need is to site your gas central heating boiler in your property, position the unvented hot water cylinder (normally in the airing cupboard) and connect the two together and add your controls and an expansion vessel.

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This means there are no tanks in the loft area, loft space is saved.

An airing cupboard contains the hot water cylinder.

This system kit is quite expensive compared with a normal conventional system or a combination boiler.

You’ll definitely need a well skilled installer for this installation which we can supply.

Unvented cylinders shown come in a range of sizes.

  • Heatrae Sadia Megaflow HE
  • Vaillant Vantage

Constant Temperature!

A hot water cylinder is a ready to use store of hot water that can be set thermostatically to give a constant temperature, typically 60-65°C, regardless of the outside temperature.

This means it can be blended down to a comfortable, usable temperature which gives a greatly increased volume of hot water available for use in the home.

The cylinders we supply set a new standard, they are designed to heat up faster and retain the heat for longer. That means householders can save money on fuel bills and still enjoy all the hot water they need, even for the biggest family 24 hours a day.

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  • They have double thickness of CFC free Urethane foam lagging as standard, this adds approximately 100mm to the cylinder diameter (single thickness cylinders are available in 50mm).
  • 20 – 25 minute reheat time.
  • Corrosion resistant.
  • British standard product.
  • More usable hot water.

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