We decided to upgrade our heating and water heating from storage heaters and immersion tank to the Fischer system. Not the cheapest option on the market but we are so pleased that we did. Radiators are so easy to programme and efficient and the water system as far as we are concerned is brilliant. No great big tank, instant hot water plus it has improved our hot water pressure to a constant flow instead of the trickle we had before. Not only do Fischer products do what they promise their installers were excellent. Quick, tidy and very helpful explaining how to programme controls etc.