Fish and seafood dehydrators operate at low temperature with very high moisture removal and produce a corrosive, salty, odorous exhaust. That combination makes heat recovery both valuable and demanding.
Enthalpy wheels recover heat and moisture, reducing the refrigeration or desiccant dehumidification load. Stainless, washdown-rated construction is mandatory, and the wheel coating must survive salt and oil aerosols.
Salt and oil foul cores quickly, so specify easy-clean coatings and robust pre-filtration, and pair the line with odor control such as activated carbon or UV treatment of the off-gas.
Hold a low-temperature profile to protect protein and nutrients, run a defrost cycle for the wheel, and enforce strict hygiene and CIP. Expect 30-50% energy savings with better shelf life and food safety.