At How2BGreener Ltd we recommend only trusted green energy saving technologies to our clients. Our UK made Solar Assisted Heat Pump's are 300% efficient (COP3) making them the "go to" green product to heat up domestic hot water for your home or business. Using heat pump technology but with a solar assisted evaporator, the SAHP's can supply all of your hot water requirement for around £80-£100 a year. As a SAP registered product, it will add points to your EPC which in turn can add real value to your property. Take a look at the videos on the website. We will welcome to opportunity to discuss further.