Looking to get opinions from the experts out there on the wall-hung combo boiler units out there (Baxi etc.) Has anyone had any practical experience with them who can comment on their longevity, flow rate, efficiency etc?
We're looking to have one installed possibly in the near future (2 back, 2 story home with 2 people) and the space savings offered by such a mini unit are hard to pass up.
Do all "on-demand" tankless systems such as these require a 3/4" water input? Given that we're in an older home, our incoming water service is still at 1/2" which I suspect may be a deal killer here.