A busy Danish supermarket reduced its annual heating bill by 89.7% and its CO₂ footprint by 6.7 tons a year by making use of the waste heat from its refrigeration system. Instead of letting the heat simply dissipate, as most supermarkets still do, a Danfoss Heat Recovery Unit (HRU) now recycles it to heat the store’s 1,900 m2 and provide plenty of hot tap water year-round. The best part, according to store manager Morten Birkebæk, not one of his 55 employees noticed a thing during installation or the first year of operation.
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if (isSmallPicture) {
; } else if (isBigColumns) { } else { }HRU - Heat Recovery UnitThe Heat Recovery Unit (HRU) is designed to recover the waste heat from C02 refrigeration installations. Recovered heat can be used for own heating purposes or returned to District Heating Utility network.