Aquaterm heat pumps are used for heating and chilling purposes in fish farming, e.g. brood-stock, fish eggs, smolts, live chilling, bleed-out and processing. Typical species are salmon, trout, cod and halibut. The heat pump is often combined with an effluent heat exchanger to achieve a high performance in relation to power input. The heat pumps are similar to the RSW plants, but with a few different material combinations. For freshwater applications the heat exchangers are made from stainless steel AISI 316 and for seawater applications we use titanium.