NOVELTY - An energy capture device adapted to receive diffuse ray energy, comprises a ray aggregator including a lens and a reflector, in optical communication with an optical pathway, such as a fiber optic cable, the fiber optic cable being arranged to deliver energy to a remote location.    USE - The energy capture device is adapted to receive diffuse ray energy. The energy device is used in an energy heating system and in an instantaneous energy heating system (all claimed).    ADVANTAGE - The present invention provides a simple and effective way to capture solar energy from the maximum spread of solar positions, and an inexpensive means of ultraviolet treating or solar radiation heating of water, by providing a lightweight device that is simple to install with few or no moving parts and requires no specialist knowledge on the behalf of the installer, allowing widespread use. The invention provides a lightweight solution to solar energy capture with the following advantages: no fluid component thus no leaks and no winter freezing problems, low manufacturing costs; self maintenance at minimal cost; easy installation; lightweight, i.e. much lighter than current products; easier to handle, install and less stress on roof; plug-in modules for additional panels; no expensive plumbing installation; uses existing water tank and hot water system (no copper heat exchanger required); instantaneous heat collection from the sun unaffected by low ambient air temperatures; no expensive additional items, e.g. pumps; safer installation and use making it more suitable for DIY, home installation and/or self maintenance; panel could be used as part of a system for desalination of water; panel could be used as part of a cooling system such as for refrigeration or air conditioning; portable, i.e. can be easily moved from one premise to another, making it ideal for caravanning and camping and also for use on boats; can simultaneously heat water plus producing electricity via a photovoltaic cell as well as for natural lighting within the home; and can be installed at a distance from the premise, avoiding unsightly panels on roofs and planning restrictions associated with listed buildings. A flexible cable, for example similar to co-axial cable size, is used and connected easily into house in a variety of ways, such as through a drilled hole in a window or wall. Because a fiber optic cable may be bent or turned with no loss of effectiveness the cable may be easily and effectively installed and connected to the target in any situation, meaning do-it-yourself installation is simple. The device is preferably easily portable and the positioning and configuration of its installation may be consequently altered as necessary, including the addition of further sections to expand the effectiveness of the device as necessary with minimum expense and difficulty. The device and related system enables a much lower cost of equipment and installation, and may be made from recyclable material, uses existing water storage tank (no copper coiled heat exchanger is needed), and is unaffected by ambient temperature as there is no need to insulate panels.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are:    (1) an energy heating system using a device; and    (2) an instantaneous energy heating system using a device.