GAH Heating estimates that the annual unvented market is over 600,000 units.
With this increased popularity of unvented cylinders and mains fed appliances it is essential to establish the performance of the main supply. Many installers carry out pressure tests, but overlook a flow test, which can result in unvented cylinders not performing to expectations, leaving houses with only a trickle of water to supply expensive power showers and designer taps.

So when it came to renovating a sizable semi-detached house, brimming with modern fittings, Proprietor of CN Plumbing, Colin Page fitted GAH's Dualstream.
The system combines the benefits of stainless steel unvented cylinders with a second vessel - the accumulator, which increases volume.

A barn conversion project which featured on Channel Five's popular television programme, Build a New Life in the Country, is home to a Dualstream water control system from GAH Heating.

Anticipating several relatives and guests who would regularly stay at the barn on completion, Steve and Lorraine were worried about their water facilities if several people used the mains at once. Pressure was also low at the premises so they sought the help of GAH's Dualstream water control system.

A recently refurbished bar, restaurant and hotel set in picturesque Suffolk grounds,
is enjoying the benefits of a Dualstream system from GAH Heating.

With a buzzing bistro restaurant, outside terrace (for al fresco dining), and fabulous bedrooms, milsoms kesgrave hall, is an exciting yet informal hotel offering great value in a relaxed environment. It now has 15 en-suite bedrooms, three of which also have lavish bathtubs and huge walk-in showers.