Zida zofewetsa madzi, monga momwe dzinalo likusonyezera, ndi zida zochepetsera kuuma kwa madzi, makamaka kuchotsa ma ion a calcium ndi magnesium m'madzi, omwe amagwiritsidwa ntchito kwambiri popanga madzi kuti azifewetsa machitidwe ngati boiler ya nthunzi, boiler yamadzi otentha, exchanger, evaporative condenser, mpweya
Werengani zambiri