Keeping Hot Water Hot
As hot water is drawn from a Solahart system, cold water is prevented from mixing with hot water. The incoming cold water enters the tank through a laminar "soft flow" cone shaped stratifier, which diminishes
the diluting effect of the cold water and helps keep the hot water hot. Another Solahart design feature - a special outlet scoop located at the very top of the tank - ensures that the outflow water is taken from the hottest point.
The outer casing of Solahart storage tanks are not cylindrical. This is another example of smart thinking giving two benefits to the customer:
First, hot water rises naturally, and the water in the tank becomes stratified. Secondly by designing the insulating jacket such that it is thicker at the top, hot water is kept hotter for longer.
Another subtle design feature is the fact that the tank is held in its insulated jacket at a slight angle, ensuring that hot water moves upwards to the outlet scoop.
The insulation is high density CFC (chlorofluoro carbon) free polyurethane, which is environmentally friendly. It is pressure injected, reaching and insulating all the small crevices. ( Fact File 005 describes the construction of the tank)
Solahart use two methods of generating hot water during times of low solar radiation or darkness, or when heavy demand has depleted the storage tank.
The standard booster in all Solahart systems for many years has been electric. This booster, whilst much more powerful, is not unlike the element in a domestic kettle, operating in much the same way.
A special "bobbin" style electric booster element is available for areas of very hard water. This particular element is protected against the corrosive effects of hard water by encasing the element windings in a ceramic lined steel casing.