Indirect cyclinders are generally low pressure copper storage vessels fitted with an integral heat exchanger. Various forms of internal heat exchanger are available, although Ormandy normally utilise a high performance multi-tube single pass exchanger. This format is hydraulically balanced to ensure maximum heating benefit, coupled with low primary pressure drops.
- Indirect cylinders are available in sizes up to 1500 litres and are suitable for use with primary hot water.
- Cylinders are compatible with vented and unvented hot water systems.
- Units are fitted with a fixed internal heat exchanger, and for maintenance purposes can be fitted with a removable bolted top.
- Standard construction is copper throughout, although other shell materials such as galvanised and stainless steel are available on request.