When is a copper cylinder considered to be indirect?
A cylinder is deemed ‘indirect’ whenever a heat exchanger is fitted within. This is to say, whenever a heat source is external to the cylinder and utilises a heat exchanger to impart heat to the contents of the cylinder the cylinder is deemed to be ‘indirect’. A cylinder could be both ‘direct’ and ‘indirect’ in certain scenarios.
Are there any unvented cylinders that are leaking?
The issue of leaking or underperforming unvented cylinders is not something we are faced with on a regular basis, especially as our primary products are copper cylinder which are proven to be more durable than stainless steel cylinders and less susceptible to corrosion.
What makes an indirect hot water cylinder indirect?
INDIRECT HOT WATER CYLINDER A cylinder is deemed ‘indirect’ whenever a heat exchanger is fitted within. This is to say, whenever a heat source is external to the cylinder and utilises a heat exchanger to impart heat to the contents of the cylinder the cylinder is deemed to be ‘indirect’.
Why do you need a heat exchanger in a copper cylinder?
For this reason it is necessary to separate the primary (heat source) water from the domestic water (what you see coming from your taps) by a heat exchanger within the cylinder – thus preventing contamination. Cylinders that work with the principle of thermosiphoning are slightly different to those designed for a fully pumped system.
A cylinder is deemed ‘indirect’ whenever a heat exchanger is fitted within. This is to say, whenever a heat source is external to the cylinder and utilises a heat exchanger to impart heat to the contents of the cylinder the cylinder is deemed to be ‘indirect’. A cylinder could be both ‘direct’ and ‘indirect’ in certain scenarios.
When to replace an old copper hot cylinder?
Since your old copper cylinder has lasted well over 20 years, then that is a very acceptable lifespan, so I would go with a copper replacement. Do check which grade cylinder you have, if you can see any label or markings, but might be impossible to know just by looking.
For this reason it is necessary to separate the primary (heat source) water from the domestic water (what you see coming from your taps) by a heat exchanger within the cylinder – thus preventing contamination. Cylinders that work with the principle of thermosiphoning are slightly different to those designed for a fully pumped system.
Can a copper cylinder be connected to a mains pressure supply?
To do so is highly dangerous and the risk of explosion exists. The only type of cylinders you may connect directly to a mains pressure supply are the Unvented Type and Thermal Stores.
