Rinnai offers a TOTAL range of FREE services to all UK customers – installers, consultants, main contractors, architects and national end users – which offers system designs, carbon reduction calculations, technical services, commissioning and delivery to site in one single consignment. Rinnai offers a range of products for energy efficient heating and hot water provision in natural gas, electricity, LPG and rDME fuels. Rinnai also offers all appliances – electric and gas water heaters, heat pumps, solar thermal systems and hybrid systems utilising the principle of Practical, Economic and Technical criteria in the choice of system to any commercial site in the UK.