What is hot-water comfort (CW class)?
The CW class (CW3 to CW6) indicates how much hot water a combi CV-ketel can supply at once. You notice it most when showering and tapping.
The CW class (comfort warm water) runs from CW3 to CW6 and indicates how much hot tap water a combi CV-ketel can deliver. CW3 suits a smaller household with one shower; CW4 and CW5 offer more comfort with simultaneous showering and tapping; CW6 is intended for larger homes with multiple bathrooms. Too low a CW class means cold water with simultaneous use; too high is unnecessarily expensive. We calculate the right comfort class based on your home and family size, so you choose a Remeha CV-ketel that fits daily use.