Designed for the busy home that requires lots of hot water, the Istor system store provides a complete high performance heating and hot water solution, all from a single appliance that fits inside an airing cupboard or utility room.
A rated and incorporating both a high efficiency boiler and an unvented cylinder, the Ideal Istor is a floor standing compact unit that is capable of delivering mains pressure hot water from more than one outlet simultaneously.
Available in two sizes, the 260 and 325, the integral cylinder contents (80 or 120 litres) is immediately available for use within the home. An integral thermostatic mixing value blends the hot water to suit the requirements of the homeowner, whilst also fulfilling the normal heating demands.
The Istor is quick and easy to install thanks to a prepiping frame, which allows the pipework to be made before fitting, and the added choice of an optional condensate-drain pump kit.
Complete with a 1 year parts and labour warranty, the Istor incorporates an easy to use hot water and heating programmer as standard, for independent selection of CH/DHW on/off times.
| 260 | 325 | |
|---|---|---|
| Casing dimensions (h w d) mm | ||
| Height | 1400 | 1600 |
| Width | 560 | 560 |
| Depth | 600 | 600 |
| Weight (packed kg) | 124.5 | 131.5 |
| Maximum Installation Weight (kg) | 114 | 120 |
| CH output (kW) Min/Max @ 70C | 8.8 - 23.4 | |
| CH output (kW) Min/Max @ 40C | 9.6 - 25.1 | |
| DHW output (kW) Max | 29.3 | |
| DHW flow rate l/min. 35°C rise | DHW stored @ 70C | |
| SEDBUK rating | Band A | |
| SEDBUK % | 90.10% | |
| NOx Classification | Class 5 | |
| Adjustable to LPG | No | |
| 260 | 325 | |
|---|---|---|
| Heat exchanger material | Cast Aluminium - Silicon Alloy | |
| Burner type | Downward firing pre-mix | |
| Fully modulating | Yes | |
| DHW plate heat exchanger | Unvented cylinder | |
| Integrated hydroblock | Unvented cylinder | |
| Suitable for sealed systems | Yes | |
| Suitable for open-vent systems | No | |
| Filling loop | Yes | |
| Pre-wired mains lead | N/A | |
| Flow regulator | N/A | |
| Inbuilt system bypass | No | |
| Inbuilt condensate trap/siphon | Yes | |
| Inbuilt boiler frost protection | Yes | |
| Zero compartment ventilation | Yes | |
| 260 | 325 | |
|---|---|---|
| Top (mm) (from top of boiler) | 450 | |
| Side (mm) | 5 | |
| Bottom (mm) | N/A | |
| Front (mm) | 165 | |
| User display | Alpha-Numeric | |
| User interface | Digital display & manual controls | |
| Diagnostics | Fault code diagnostics | |
| User adjustable | CH manual adjustment | |
| ‘Eco’ setting on CH | No | |
| Inbuilt Programmer | Yes | |
| 260 | 325 | |
|---|---|---|
| Pre-piping kit | Standard | |
| Stand-off kit | N/A | |
| Upward piping kit | N/A | |
| Max horizontal | 6m | |
| Max vertical | 7.5m | |
| Powered Vertical | 22m | |