Solar Water Heating Combi Boiler

Solar pv systems generate electricity that can be used to reduce the boiler s running costs while solar thermal uses energy from the sun to heat water providing domestic hot water and solar central heating system.

Solar water heating combi boiler.

The rheem combination boiler. Historically it was difficult to integrate solar water heating with a combi boiler as by definition combi s heat water instantaneously therefore do not require hot water cylinders. Rather than running on gas which is common place in the uk an electric combi boiler heats water for central heating and domestic hot water using only electricity. What is an electric combi boiler.

This fluid then circulates down to the water tank and around a coil heating up the water in the hot water tank. Feeding solar heated water to a combi boiler introduces a risk that the water feeding the boiler could have spent time at temperatures that allows the legionella to multiply. A twin coil solar cylinder will normally adequately control legionella risk if the boiler heated section of the cylinder is heated daily to 60c for 1 hour and the water is resident in the boiler heated section for 24 hours which happens if the boiler heated volume is greater than the daily hot water use. The solar thermal panels located on the roof have a fluid within them that gets heated by the sun.

This device measures 17 6 x 14 1 x 28 1 in dimensions so you can already tell that it doesn t get any more compact than this. The solar water heating system works all year round although you will need to heat the water with a boiler or immersion heater during the winter months when the solar energy is not available. Electric combi boilers don t take up as much space as gas boilers have fewer moving parts and don t require an annual service. As solar panels heat water across a day and not necessarily when there is hot water demand the need is still there to store solar heated water until you are ready to use it.

The short heating cycle of the combi boiler cannot be relied upon to deactivate legionella. It can deliver up to 9 2 gallons per minute of water. Highly efficient our combi boilers package endless hot water with space heating all in a single unit so you can replace your existing boiler and tank water heater with a single unit. Or if you are aiming for complete sustainability thermodynamic panels can complement the hot water system.