What is a good ‘storage’ combi out there?
I know Alpha do the CD50 but don’t know how reliable their boilers are
The Alpha is good. What type of storage combi? floor or wall mounted?
Glow Worm do a wall mounted as do Vaillant, but their vessel is small. ACV do a very good quality wall mounted one.
For floor mounted, Viessmann, Worcester Bosch, ACV HeatMaster, Gledhill, Powermax (avoid as by Pott). Atmos do a very good one as well.
The Mikrofil Ethos is not storage but has a high flowrate and can go on a wall and is small.
I'm sure others can add to the list.
Ever considered a high flow multi-point like the Rinnai or Andrews and a small CH system boiler?