istor HE
This product is now available with V3 Flueing see here for more details.
The istor HE
istor HE system storage units take the provision of both central heating and plentiful supplies of hot water to a new level. This is achieved by combining a high-efficiency boiler and unvented cylinder in one unit with all necessary controls. That also means a dry loft for simplicity and peace of mind.
Naturally they are designed for fast and easy installation, whilst good accessibility minimises service and maintenance. Space is freed up in the property due to their compact design, whilst the householder also benefits by having an appliance capable of giving mains pressure hot water from more than one outlet simultaneously. The choice of two models provides these benefits for larger properties. The many flue options available with the Ideal high-efficiency ranges allow more siting options for this flexible product.
Application and usage
The istor HE offers tremendous flexibility in where it can be sited, freeing kitchen space if installed in the airing cupboard for example. That type of siting is made easier by 100mm concentric or a choice of 80mm and 60mm diameter twin-duct flue systems. More awkward installations can now be handled with the optional condensate drain pump kit. Rapid installation is assisted by thoughtful features such as a pre-piping frame, allowing pipework to be made before fitting the unit. The water controls are all supplied inbuilt requiring no extra space or time. Further ensuring that the istor HE is a truly complete unit, a programmer and immersion heater all come fitted as standard.
The istor HE in operation
The units are automatically controlled with a fanned flue and no cupboard ventilation is required. High-efficiency in operation is always maintained as the boiler modulates to match the load applied.
Central heating
The boiler will fire to meet the heating requirements of the house as a normal system.
Domestic hot water
The cylinder contents (80 or 120) litres are immediately available for use and are blended by the integral thermostatic mixing valve (settings 30-65°C) to suit the householder. The boiler will fire to replenish the cylinder or for a few seconds to maintain temperature. Even after the full contents have been used, hot water is still available at reduced rate. The cylinder is rapidly replenished as soon as DHW draw stops via the high recovery cylinder coil.