Solar Hot Water

how_does_solar_thermal_work.jpgHow Does Solar Thermal Work?

The suns heat energy is absorbed in vacuum tubes or flat plate collectors situated on the roof, or other position available for the property. If the temperature within the collectors is higher than the temperature within the hot water storage cylinder then the solar pump is switched on.

The temperature differentials are constantly monitored to ensure correct control of the system this transfers the heat from the collectors through the lower coil within the cylinder and indirectly heats the stored hot water producing hot water for use. A twin coil storage cylinder is used to ensure hot water can be backed up on days of poor solar gain thermal store applications can also be used, along with advanced design stratified cylinders.

It is important to utilise as much solar energy as possible to maintain savings and reduce environmental impact. This is achieved by sizing the whole system to suit the occupants.

evacuated_tube.jpgEvacuated Tube or Flat Plate

Solar Thermal Evacuated Tube Systems

Solar thermal technology transforms direct and diffuse solar radiation into useful heat using a solar collector. Each solar collector consists of a highly insulated manifold and a row of solar tubes. The vacuum inside each tube provides perfect insulation and therefore protects the system from outside influences such as cold and windy weather or high humidity. The vacuum technology ensures the most effective transfer of energy into heat, giving extra performance in comparison to traditional flat plate collectors and providing heat not only on warm, sunny days, but also in cooler, windy or humid conditions.

solar_flat_plate.jpgSolar Flat Plate Systems

Designed for the UK climate, the Marvel Panel has everything you could look for in a flat plate solar thermal panel.The Marvel panel is aluminium cased, low iron, tempered glass unit containing copper risers with copper plate, ‘tinox’ coated, ultrasonically welded to give a full covering of copper withinthe unit.

The glazing is tested to BS12975 hail test and is guaranteed under these extreme conditions.

Supported Manufacturers Systems


With over 25 years of experience, the Thermomax brand is firmly established as a world leader. Thermomax collectors are the premium product in the market. In 2005, the brand was awarded the International Forum Design award for excellence in product design. All Thermomax collectors are also Solar Keymark approved.


Lochinvar bespoke solar thermal solutions offer an ideal answer for building owners who wish to reduce their carbon footprint without compromising the hot water supply.

Thanks to the use of a patented drain back system mounted directly below the solar collector, stagnation temperatures of the heat exchange medium are prevented. This results in a maximum lifetime for the entire installation. In addition, the solar circulator is protected from excessive temperatures.


With Viridian Solar you can install solar and still maintain the good looks of your property. Slimline and elegant, Clearline solar panels replace tiles or slates on a pitched roof for a cleaner, simpler installation.


Renewable Heat Incentives

The Renewable Heat Incentive (RHI) is a Government environmental programme that provides financial incentives to increase the uptake of Renewable Heat.
  1. Link to RHI
  2. Enquiries