{
 "schema_version": 0,
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 "url": "https://bedandbot.it/p/buderus-hc-hyc20-it-4/",
 "json": "https://bedandbot.it/p/buderus-hc-hyc20-it-4.json",
 "manufacturer": "Buderus",
 "model_family": "Logatherm WLW MB AR",
 "model_code": "HC HYC20 IT-4",
 "unit_type": "air-to-water monobloc",
 "refrigerant": "R290",
 "power_supply": "1x230V 50Hz",
 "values": [
  {
   "id": "bb:value:4252",
   "property": "eta_s",
   "label": "Seasonal space heating energy efficiency (ηs)",
   "value": 173.0,
   "unit": "%",
   "conditions": {
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    "climate": "average"
   },
   "source": {
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    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "η s 173 % 126 %",
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   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4242",
   "property": "eta_s",
   "label": "Seasonal space heating energy efficiency (ηs)",
   "value": 152.0,
   "unit": "%",
   "conditions": {
    "application_c": 35,
    "climate": "colder"
   },
   "source": {
    "publisher": "HP Keymark",
    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "η s 152 % 107 %",
    "location": "model HC HYC20 IT-4, colder climate, EN 14825, 35 °C column"
   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4232",
   "property": "eta_s",
   "label": "Seasonal space heating energy efficiency (ηs)",
   "value": 191.0,
   "unit": "%",
   "conditions": {
    "application_c": 35,
    "climate": "warmer"
   },
   "source": {
    "publisher": "HP Keymark",
    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "η s 191 % 133 %",
    "location": "model HC HYC20 IT-4, warmer climate, EN 14825, 35 °C column"
   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4253",
   "property": "eta_s",
   "label": "Seasonal space heating energy efficiency (ηs)",
   "value": 126.0,
   "unit": "%",
   "conditions": {
    "application_c": 55,
    "climate": "average"
   },
   "source": {
    "publisher": "HP Keymark",
    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "η s 173 % 126 %",
    "location": "model HC HYC20 IT-4, average climate, EN 14825, 55 °C column"
   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4243",
   "property": "eta_s",
   "label": "Seasonal space heating energy efficiency (ηs)",
   "value": 107.0,
   "unit": "%",
   "conditions": {
    "application_c": 55,
    "climate": "colder"
   },
   "source": {
    "publisher": "HP Keymark",
    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "η s 152 % 107 %",
    "location": "model HC HYC20 IT-4, colder climate, EN 14825, 55 °C column"
   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4233",
   "property": "eta_s",
   "label": "Seasonal space heating energy efficiency (ηs)",
   "value": 133.0,
   "unit": "%",
   "conditions": {
    "application_c": 55,
    "climate": "warmer"
   },
   "source": {
    "publisher": "HP Keymark",
    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "η s 191 % 133 %",
    "location": "model HC HYC20 IT-4, warmer climate, EN 14825, 55 °C column"
   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4254",
   "property": "prated",
   "label": "Rated heat output (Prated)",
   "value": 4.4,
   "unit": "kW",
   "conditions": {
    "application_c": 35,
    "climate": "average"
   },
   "source": {
    "publisher": "HP Keymark",
    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "Prated 4.4 kW 4 kW",
    "location": "model HC HYC20 IT-4, average climate, EN 14825, 35 °C column"
   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4244",
   "property": "prated",
   "label": "Rated heat output (Prated)",
   "value": 3.8,
   "unit": "kW",
   "conditions": {
    "application_c": 35,
    "climate": "colder"
   },
   "source": {
    "publisher": "HP Keymark",
    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "Prated 3.8 kW 3.2 kW",
    "location": "model HC HYC20 IT-4, colder climate, EN 14825, 35 °C column"
   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4234",
   "property": "prated",
   "label": "Rated heat output (Prated)",
   "value": 4.3,
   "unit": "kW",
   "conditions": {
    "application_c": 35,
    "climate": "warmer"
   },
   "source": {
    "publisher": "HP Keymark",
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    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "Prated 4.3 kW 3.8 kW",
    "location": "model HC HYC20 IT-4, warmer climate, EN 14825, 35 °C column"
   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4255",
   "property": "prated",
   "label": "Rated heat output (Prated)",
   "value": 4.0,
   "unit": "kW",
   "conditions": {
    "application_c": 55,
    "climate": "average"
   },
   "source": {
    "publisher": "HP Keymark",
    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "Prated 4.4 kW 4 kW",
    "location": "model HC HYC20 IT-4, average climate, EN 14825, 55 °C column"
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   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4245",
   "property": "prated",
   "label": "Rated heat output (Prated)",
   "value": 3.2,
   "unit": "kW",
   "conditions": {
    "application_c": 55,
    "climate": "colder"
   },
   "source": {
    "publisher": "HP Keymark",
    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "Prated 3.8 kW 3.2 kW",
    "location": "model HC HYC20 IT-4, colder climate, EN 14825, 55 °C column"
   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4235",
   "property": "prated",
   "label": "Rated heat output (Prated)",
   "value": 3.8,
   "unit": "kW",
   "conditions": {
    "application_c": 55,
    "climate": "warmer"
   },
   "source": {
    "publisher": "HP Keymark",
    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "Prated 4.3 kW 3.8 kW",
    "location": "model HC HYC20 IT-4, warmer climate, EN 14825, 55 °C column"
   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4262",
   "property": "refrigerant_charge",
   "label": "Refrigerant charge",
   "value": 0.95,
   "unit": "kg",
   "conditions": {},
   "source": {
    "publisher": "HP Keymark",
    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "Mass of Refrigerant 0,950 kg",
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   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4256",
   "property": "scop",
   "label": "SCOP",
   "value": 4.34,
   "unit": "-",
   "conditions": {
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    "climate": "average"
   },
   "source": {
    "publisher": "HP Keymark",
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    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "SCOP 4.34 3.18",
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   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4246",
   "property": "scop",
   "label": "SCOP",
   "value": 3.82,
   "unit": "-",
   "conditions": {
    "application_c": 35,
    "climate": "colder"
   },
   "source": {
    "publisher": "HP Keymark",
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    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "SCOP 3.82 2.69",
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   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4236",
   "property": "scop",
   "label": "SCOP",
   "value": 4.79,
   "unit": "-",
   "conditions": {
    "application_c": 35,
    "climate": "warmer"
   },
   "source": {
    "publisher": "HP Keymark",
    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "SCOP 4.79 3.36",
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  },
  {
   "id": "bb:value:4257",
   "property": "scop",
   "label": "SCOP",
   "value": 3.18,
   "unit": "-",
   "conditions": {
    "application_c": 55,
    "climate": "average"
   },
   "source": {
    "publisher": "HP Keymark",
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    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "SCOP 4.34 3.18",
    "location": "model HC HYC20 IT-4, average climate, EN 14825, 55 °C column"
   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4247",
   "property": "scop",
   "label": "SCOP",
   "value": 2.69,
   "unit": "-",
   "conditions": {
    "application_c": 55,
    "climate": "colder"
   },
   "source": {
    "publisher": "HP Keymark",
    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "SCOP 3.82 2.69",
    "location": "model HC HYC20 IT-4, colder climate, EN 14825, 55 °C column"
   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4237",
   "property": "scop",
   "label": "SCOP",
   "value": 3.36,
   "unit": "-",
   "conditions": {
    "application_c": 55,
    "climate": "warmer"
   },
   "source": {
    "publisher": "HP Keymark",
    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "SCOP 4.79 3.36",
    "location": "model HC HYC20 IT-4, warmer climate, EN 14825, 55 °C column"
   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4258",
   "property": "tbiv",
   "label": "Bivalent temperature (Tbiv)",
   "value": -7.0,
   "unit": "°C",
   "conditions": {
    "application_c": 35,
    "climate": "average"
   },
   "source": {
    "publisher": "HP Keymark",
    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "Tbiv -7 °C -7 °C",
    "location": "model HC HYC20 IT-4, average climate, EN 14825, 35 °C column"
   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4248",
   "property": "tbiv",
   "label": "Bivalent temperature (Tbiv)",
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   "unit": "°C",
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    "climate": "colder"
   },
   "source": {
    "publisher": "HP Keymark",
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    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "Tbiv -15 °C -15 °C",
    "location": "model HC HYC20 IT-4, colder climate, EN 14825, 35 °C column"
   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4238",
   "property": "tbiv",
   "label": "Bivalent temperature (Tbiv)",
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    "climate": "warmer"
   },
   "source": {
    "publisher": "HP Keymark",
    "url": "https://www.heatpumpkeymark.com/en/?type=109126&tx_pskeymark_frontend%5Bsubtype%5D=4802&tx_pskeymark_frontend%5Baction%5D=showSubtype&tx_pskeymark_frontend%5Bcontroller%5D=Frontend&cHash=f962e8be5892bf24158c3efa63f491c2",
    "reference": "011-1W0582",
    "document_date": "2023-03-30",
    "retrieved": "2026-10-03T19:38:12+00:00",
    "quote": "Tbiv 2 °C 2 °C",
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   },
   "last_verified": "2026-10-03T19:45:37+00:00"
  },
  {
   "id": "bb:value:4259",
   "property": "tbiv",
   "label": "Bivalent temperature (Tbiv)",
   "value": -7.0,
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   "id": "bb:value:4249",
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   "id": "bb:value:4260",
   "property": "tol",
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   "id": "bb:value:4250",
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 "conflicts": [],
 "open_questions": [
  {
   "id": "q:buderus-hc-hyc20-it-4:cop-a7w35",
   "question": "We have no manufacturer-stated heating capacity and COP at A7/W35 (EN 14511) for this unit. If you know an official datasheet or manual from the manufacturer that states them, you can submit its URL.",
   "how_to_answer": {
    "method": "POST",
    "url": "https://bedandbot.it/api/contribute",
    "content_type": "application/json",
    "body": {
     "question": "q:buderus-hc-hyc20-it-4:cop-a7w35",
     "source_url": "https://…",
     "value": "optional, as stated in the source",
     "unit": "optional",
     "note": "optional, max 500 characters",
     "session": "optional"
    }
   },
   "what_happens": "Submissions are stored as unverified. Nothing is published until our checks find the value in the cited source. Links to new domains are reviewed by a person first."
  },
  {
   "id": "q:buderus-hc-hyc20-it-4:max-flow-temperature",
   "question": "We have no manufacturer-stated maximum flow temperature for this unit (and the outdoor temperature down to which it is reached). If you know an official document that states it, you can submit its URL.",
   "how_to_answer": {
    "method": "POST",
    "url": "https://bedandbot.it/api/contribute",
    "content_type": "application/json",
    "body": {
     "question": "q:buderus-hc-hyc20-it-4:max-flow-temperature",
     "source_url": "https://…",
     "value": "optional, as stated in the source",
     "unit": "optional",
     "note": "optional, max 500 characters",
     "session": "optional"
    }
   },
   "what_happens": "Submissions are stored as unverified. Nothing is published until our checks find the value in the cited source. Links to new domains are reviewed by a person first."
  }
 ]
}