Boiler economy - Ferroli versus Valliant

[JulieG]

Both boilers appear to have roughly the same output but is one more economical that the other? They are both A Rated and with almost identical percentages etc.

The ferroli is currently dead and a Valliant is about to be fitted .

Ferroli was a Maxima 35c
Valliant is a Ecotec 837

 

[ianniann]

Same percentages means one is not more efficient than the other. They are so close that you'll never notice the difference. Of course if the Ferroli wasn't working so well, it may have been less efficient than the numbers show.