{"id":1188,"date":"2022-02-19T14:16:19","date_gmt":"2022-02-19T14:16:19","guid":{"rendered":"https:\/\/heatpumpingtechnologies.org\/annex50\/?page_id=1188"},"modified":"2022-04-07T13:18:30","modified_gmt":"2022-04-07T13:18:30","slug":"solution-2-2","status":"publish","type":"page","link":"https:\/\/heatpumpingtechnologies.org\/annex50\/solution-2-2\/","title":{"rendered":"2.2 Combination Central – Decentral"},"content":{"rendered":"
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HEATING \u2013 CENTRAL, DHW \u2013 DECENTRAL EL<\/strong><\/strong><\/p>\n<\/div>\n\n

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Main characteristic of the concept<\/strong><\/h4>\n<\/div>\n\n
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One central heat pump system for space heating. Decentral direct electrical heaters for DHW.<\/p>\n<\/div><\/div>\n\n\n\n

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Heat distribution and temperatures levels<\/strong><\/h4>\n<\/div>\n\n
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The heat pump providing only space heating may be optimized for this purpose. In case of underfloor heating system, needed temperature is significantly lower than for DHW.\u00a0\u00a0<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n

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Size of building, number of apartments<\/strong><\/h4>\n<\/div>\n\n
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This solution is suitable for all sizes of buildings with the preference for average and bigger ones. Decentral direct electric DHW avoids heat losses in case of long piping systems in average and large buildings.<\/p>\n<\/div><\/div>\n\n\n\n

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DHW and storage characteristic<\/strong><\/h4>\n<\/div>\n\n
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DHW is realised for each apartment separately through a direct electric heating system. No storage tanks needed. Energy distribution losses reduced to the minimum. Generally, the provision of DHW with heat pumps is more energetically efficient than a direct electric solution. Nevertheless, in some cases both solutions may be similar in term of global efficiently consideration.\u00a0\u00a0\u00a0\u00a0\u00a0<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n

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Energy standard, insulation level <\/strong><\/h4>\n<\/div>\n\n
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This concept can be generally used for buildings with all levels of energetical standards.<\/p>\n<\/div><\/div>\n\n\n\n

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Complexity of installation<\/strong><\/h4>\n<\/div>\n\n
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Easy installation of DHW heaters. No DHW tanks needed.<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n

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Heat Sources<\/strong><\/h4>\n<\/div>\n\n
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All heat sources possible.<\/p>\n<\/div><\/div>\n\n\n\n

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Specific issues of the concept<\/strong><\/h4>\n<\/div>\n\n
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Heat pump only for heating. No distribution heat losses for DHW. Easy avoiding of legionella. <\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n

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Positive aspects<\/strong><\/p>\n<\/div>\n\n

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