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For climates with moderate heating and cooling needs, heat pumps offer an energy-efficient alternative to furnaces and air conditioners. Like your refrigerator, heat pumps use electricity to move heat from a cool space into a warm, making the cool space cooler and the warm space warmer. During the heating season, heat pumps move heat from the cool outdoors into your warm house; during the cooling season, heat pumps move heat from your cool house into the warm outdoors. Because they move heat rather than generate heat, heat pumps can provide up to 4 times the amount of energy they consume. The most common type of heat pump is the air-source heat pump, which transfers heat between your house and the outside air. If you heat with electricity, a heat pump can trim the amount of electricity you use for heating by as much as 30%–40%. High-efficiency heat pumps also dehumidify better than standard central air conditioners, resulting in less energy usage and more cooling comfort in summer months. However, the efficiency of most air-source heat pumps as a heat source drops dramatically at low temperatures, generally making them unsuitable for cold climates, although there are systems that can overcome that problem. Some information obtained from the U.S. Dept of energy web site. eere.energy.gov/
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Toplinska pumpa je energetski najjeftiniji način za zagrijavanje sanitarne vode. Oduzima toplinu zraku iz okolice i uz dodatak električne energije zagrijava sanitarnu vodu do temperature 55 °C. Opremljena je sa sistemom za termičku dezinfekciju za sprječavanje pojave legionele, koji vodu u spremniku povremeno zagrije na 65 °C. Za pogon uređaja (kompresora i ventilatora) potrebno je osigurati 30% električne energije, a 70 % energije dobivamo iz okoline (besplatno). Amortizacija investicije se vraća kroz nekoliko godina u usporedbi s drugim energentima. Toplinska pumpa služi za zagrijavanje sanitarne vode u domaćinstvima, ugostiteljstvu, školama, vrtićima i gdjegod se dnevno troši od 100 do 300 litara tople sanitarne vode. Ako toplina iz prostora nije dovoljan izvor energije, toplinske pumpe mogu koristiti i izvor topline iz solarnih kolektora, kotla ili električni grijač tako da se onda agregat instalira na spremnik s dva izmjenjivača. Dodatna prednost toplinske pumpe je efekt rada kompresora gdje možemo iskoristiti rad kompresora u prostoriji u kojoj se nalazi te se može koristiti za hlađenje manjih podruma, ostava ili kuhinja.