What is SOLAR HEATING? Within our Solar Heating Catagory you will find all the major components required in quality solar water heating installation. Specifications,guides for fitting and full pricing provided on thegascompany.ie. Every year the sun provides over 8000 times as much energy as we consume worldwide. In the Ireland alone we receive between 900 and 1200 kWh of energy per m2 per year, so by using solar thermal collectors, this is enough to provide up to 60% of a property's total annual water heating needs, reducing fuel bills and building carbon emissions.