GAH Dualstream

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Products | Hot Water | Dualstream Systems | GAH Dualstream Systems

Dualstream Systems from GAH

The Dualstream system by GAH utilises all the benefits of traditional unvented cylinders taking performance to another level, transforming both new and existing plumbing systems, delivering an outstanding performance.

Dualstream will provide a substantial increase in water volume to both hot and cold outlets within the building. Designed to work at very low flow rates (5 Ltrs per min) and can be adjusted to operate even if the mains water pressure is reduced.

Why install Dualstream over conventional unvented systems?

No tanks in the loft, no risk of water stagnation and Legionella
Mains pressure giving good shower flow and force, no shower pumps
Balance hot and cold water supply pressures giving wider choice of taps and mixers
Faster recovery rates compared to older cylinders
Two or more models can be installed in parallel for greater volume demand, applications such as health clubs, hotels, sports, and social clubs
Our systems once installed, are supported by a 2 year guarantee on the accumulator and electrical controls and 10 year manufacturers guarantee on the cylinder tank

So how does the Dualstream system work?

The Dualstream utilises all the benefits of traditional unvented cylinders with standard controls.
The system also uses an accumulator vessel, this stores mains water at the main pressure in a special butyl diaphragm, and is the driving force to the hot/cold supplies. The accumulator as shown below can be installed in two ways, option 'A' or 'B'. Option 'A' requires an accessory pack containing pressure reducing valve, expansion vessel and bracket, available form us at additional cost and should be ordered with the system.

The water pressure is balanced by air pressure between the accumulator wall and diaphragm. When any tap or shower is turned on, the stored water from the accumulator will supplement water from the incoming main.

If the accumulator is sized correctly, it will allow any number of baths or showers to be used simultaneously, irrespective of the incoming main flow rate and will function even if the mains are turned off, regardless of the mains water pressure. Dualstream systems can be sited close together or remote from each other offering flexibility in installation.

To obtain the very best performance from your Dualstream system the accumulator must be sized correctly. Please contact us with your requirements and we shall be happy to size the job for you

Please Note - The prices below include an increase of some 30-40% from GAH on October 1st 2007.
This is because of no price increases from GAH for 7 years.

GAH Dualstream 240/125
2 bed, 3 people, bath + shower, kitchen
Price: £1,530.00
£1,797.75 (Including: VAT at 17.5%)

GAH Dualstream 240/150
3 bed, 4 people, bath + shower, kitchen
Price: £1,597.00
£1,876.48 (Including: VAT at 17.5%)

GAH Dualstream 300/125
3 bed, 4 people, bath + shower, kitchen
Price: £1,627.00
£1,911.73 (Including: VAT at 17.5%)

GAH Dualstream 300/150
4 bed, 5 people, 2 baths + shower, kitchen
Price: £1,697.00
£1,993.98 (Including: VAT at 17.5%)

GAH Dualstream 300/210
4 bed, 5 people, 2 baths + shower, kitchen
Price: £1,765.00
£2,073.88 (Including: VAT at 17.5%)

GAH Dualstream 300/300
Larger Homes
Price: £1,965.00
£2,308.88 (Including: VAT at 17.5%)

GAH Dualstream 500/210
Larger Homes
Price: £1,997.00
£2,346.48 (Including: VAT at 17.5%)

GAH Dualstream 500/300
Larger Homes

Price: £2,195.00
£2,579.13 (Including: VAT at 17.5%)

GAH Dualstream 500/500
Larger Homes/Light Commercial

Price: £2,995.00
£3,519.13 (Including: VAT at 17.5%)

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