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Calorifer electric Hausberg HB-8920AB, 2500 W, 11 elementi, 3 nivele de putere, termostat reglabil - Viata-la-tara.ro
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Calcul necesar termic - pierderi de caldura. Dimensionare radiatoare, centrala, puffer.: Calculul volumului optim pt puffer & boiler
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