Second Environvent unit fitted on a second property. Exactly same experience both times. Fitting date came and went. I took time off work on both days but no show by the fitter. Why? Well it appears the regional surveyor ( you know who he is) can’t ever supply correct contact data to his team back in the Harrrogate office so they cannot contact the customer about delays. This relied on phone contact only so I suggest Environvent take email addresses too. Prioritise this. Now this message where my name is incorrect! Not hot on customer detail, are they? Fitters, by the way, were very good and the product seems sound so far. It works and I would recommend.