For my heating system I wanted a one-stop shop so that I dealt with one entity if anything went wrong. I had been worried about noise from the air to water unit but with the all-in-one outside unit there is no issue, in fact my parents oil boiler can be heard from next door and is much louder.

A year on and I am delighted with the system, we came through the winter spending approx €400 on heating from Oct through to March.