@Dirtfarmr @PaddyBriggs @moiracathleen @BorisJohnson @POTUS @polit2k @Sysparatem Because the ASHP is wider than is is tall, we can't just turn it sideways. From experience, the back is often even more limited. The mid-terraces are screwed - the end terraces are the only ones likely wall space they could use (but may lack rights to the land they'd overlap)