Who makes the most reliable combi boiler?

Who makes the most reliable combi boiler?

Who makes the most reliable combi boiler?
The list below is based off of the highest rating each brand got in terms of combi boiler reliability.
  1. Viessmann Combi Boiler Reliability. Patented Inox-Radial Stainless Steel Heat Exchanger (Manufactured in-house) …
  2. Worcester Bosch Combi Boiler Reliability. …
  3. Vaillant Combi Boiler Reliability.
8 Feb 2019