I have a thermopure. I use the hot water on first cleans, cladding and signage, i find it does help. I also always use it in the winter, but during the summer doing maintainance cleans i never switch it on. I know that alot of people say how expensive Ionic are, i generally work 6 days a week,the system is 3 years old, all the same original parts ie pumps, hoses, webasto, ect ect, never had a lost day of work due to anything not working, everyday i just come out and it all works fine. ( thats blown it ) So to me its been worth the money, and the option of having hot water is a bonus!