Heat Pump Cylinders
Most people own a heat pump and don't even realise it - your refrigerator is in fact a type of heat pump. Heat is extracted from the inside of the fridge to keep food fresh and is expelled through the radiator grill at the back of the unit. But when used in the opposite way, heat pumps extract heat from an outside source, and rather than the heat becoming a waste product, it is conveyed to a point of use within the premises. In this case, the point of use would be a hot water storage cylinder.
The heat energy that has been produced by the heat pump is transferred to the water in the cylinder via a high efficiency finned, copper coil - the same way a common gas or oil boiler would heat your hot water. However, the heat pump coils in the Newark HPCyl Heat Pump cylinders have a far larger heating surface than the traditional domestic boiler coils that are offered in copper or stainless steel cylinders. This allows the coil to dissipate as much heat as the heat pump can possibly produce, preventing the heat pump from cycling.
Since the average temperature range that most heat pumps can achieve, is approximately 45 - 55°C it would be necessary to have at least one other form of heat input to the cylinder as a backup, for example, immersion heater, gas/ oil boiler or any other heat application, which is capable of raising the temperature of the stored water to around 60 - 65°C, although some heat pumps can achieve this temperature on their own. The heat pump application can also be combined with solar heating to achieve a very environmentally friendly and highly efficient method of heating your hot water.
The Newark HPCyl Heat Pump cylinder is available in the vented, unvented, solar or in some cases thermal store specifications.
More information is available on our HPCyl and HPSolarCyl pages, or just Contact Us about custom sizing and/or specification!