Does anyone have any experience/thoughts on the electriQ heat pump which claims to be suitable for DIY install: https://www.electriq.co.uk/p/eiq-12wminv/electriq-12000-btu-panasonic-powered-smart-wall-mounted-split-air-conditioner-with-heat-pump-5-meters-pipe-kit-and   >Does not require installation by an F-Gas registered engineer or specialist equipment for typical installation – everything you need is supplied.   With a SCoP of 4.1 it's a tempting alternative to just exp