{
 "record_id": "18a3ce8a193301208557e0d6f2d027166917cb25",
 "eligible": true,
 "exclusion_reason": null,
 "study": {
  "title": "Impact of ground source heat pumps on house sales prices in Finland",
  "year": 2023,
  "doi": "10.1007/s12053-023-10084-x",
  "country": "Finland",
  "region_city": "Eight cities: Helsinki, Espoo, Vantaa, Turku, Tampere, Lahti, Kuopio, Oulu",
  "sample_start": 1999,
  "sample_end": 2018,
  "property_type": "single_family",
  "price_type": "transaction",
  "data_source": "Central Federation of Finnish Real Estate Agencies (KVKL) housing transaction database, 19,008 detached-house transactions 1999-2018",
  "document_type": "journal",
  "estimators": [
   "OLS"
  ],
  "spatial_method": "none (postcode fixed effects)",
  "time_fe": true,
  "location_fe": true,
  "se_type": "unknown",
  "n_obs_total": 19008,
  "ai_methods": [],
  "notes": "Log sales price (EUR) of detached houses. Two specifications: A = GSHP true/false (other heating types pooled); B = each heating type as own category, direct electricity omitted. Table 4 reports the full specification (sale year + month FE, postcode FE, neighbourhood characteristics, building characteristics) with coefficients and SE; Table 5 reports only heating coefficients for nested specifications 1-4c (column 4 = Table 4). Table 6 interactions of GSHP with sale year and municipality are not extracted. Neighbourhood characteristics coefficients not printed. Condition reference = decent; lot ownership reference = own. Star legend *** 1%, ** 5%, * 10%."
 },
 "models": [
  {
   "model_id": "T4-A",
   "table": "4",
   "column": "GSHP (A)",
   "page": 8,
   "dep_var": "log sales price (EUR)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 19008,
   "r2": 0.851,
   "se_or_t_in_parentheses": "se",
   "sample_subset": "Spec A: GSHP true/false; full controls, year+month FE, postcode FE, neighbourhood characteristics; adj. R2"
  },
  {
   "model_id": "T4-B",
   "table": "4",
   "column": "Heating type (B)",
   "page": 8,
   "dep_var": "log sales price (EUR)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 19008,
   "r2": 0.851,
   "se_or_t_in_parentheses": "se",
   "sample_subset": "Spec B: heating type categories (direct electricity omitted); full controls, year+month FE, postcode FE, neighbourhood characteristics; adj. R2"
  },
  {
   "model_id": "T5-A-c1",
   "table": "5",
   "column": "A-1",
   "page": 9,
   "dep_var": "log sales price (EUR)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 19008,
   "r2": 0.1309,
   "se_or_t_in_parentheses": "se",
   "sample_subset": "Spec A (GSHP true/false), sensitivity column 1: year+month FE only; adj. R2; column 4 = Table 4 (not duplicated)"
  },
  {
   "model_id": "T5-B-c1",
   "table": "5",
   "column": "B-1",
   "page": 9,
   "dep_var": "log sales price (EUR)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 19008,
   "r2": 0.148,
   "se_or_t_in_parentheses": "se",
   "sample_subset": "Spec B (heating type categories), sensitivity column 1: year+month FE only; adj. R2; column 4 = Table 4 (not duplicated)"
  },
  {
   "model_id": "T5-A-c2",
   "table": "5",
   "column": "A-2",
   "page": 9,
   "dep_var": "log sales price (EUR)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 19008,
   "r2": 0.6179,
   "se_or_t_in_parentheses": "se",
   "sample_subset": "Spec A (GSHP true/false), sensitivity column 2: + postcode FE; adj. R2; column 4 = Table 4 (not duplicated)"
  },
  {
   "model_id": "T5-B-c2",
   "table": "5",
   "column": "B-2",
   "page": 9,
   "dep_var": "log sales price (EUR)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 19008,
   "r2": 0.6228,
   "se_or_t_in_parentheses": "se",
   "sample_subset": "Spec B (heating type categories), sensitivity column 2: + postcode FE; adj. R2; column 4 = Table 4 (not duplicated)"
  },
  {
   "model_id": "T5-A-c3",
   "table": "5",
   "column": "A-3",
   "page": 9,
   "dep_var": "log sales price (EUR)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 19008,
   "r2": 0.6332,
   "se_or_t_in_parentheses": "se",
   "sample_subset": "Spec A (GSHP true/false), sensitivity column 3: + neighbourhood characteristics; adj. R2; column 4 = Table 4 (not duplicated)"
  },
  {
   "model_id": "T5-B-c3",
   "table": "5",
   "column": "B-3",
   "page": 9,
   "dep_var": "log sales price (EUR)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 19008,
   "r2": 0.6368,
   "se_or_t_in_parentheses": "se",
   "sample_subset": "Spec B (heating type categories), sensitivity column 3: + neighbourhood characteristics; adj. R2; column 4 = Table 4 (not duplicated)"
  },
  {
   "model_id": "T5-A-c4a",
   "table": "5",
   "column": "A-4a",
   "page": 9,
   "dep_var": "log sales price (EUR)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 19008,
   "r2": 0.8282,
   "se_or_t_in_parentheses": "se",
   "sample_subset": "Spec A (GSHP true/false), sensitivity column 4a: full model excluding age; adj. R2; column 4 = Table 4 (not duplicated)"
  },
  {
   "model_id": "T5-B-c4a",
   "table": "5",
   "column": "B-4a",
   "page": 9,
   "dep_var": "log sales price (EUR)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 19008,
   "r2": 0.8303,
   "se_or_t_in_parentheses": "se",
   "sample_subset": "Spec B (heating type categories), sensitivity column 4a: full model excluding age; adj. R2; column 4 = Table 4 (not duplicated)"
  },
  {
   "model_id": "T5-A-c4b",
   "table": "5",
   "column": "A-4b",
   "page": 9,
   "dep_var": "log sales price (EUR)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 19008,
   "r2": 0.8119,
   "se_or_t_in_parentheses": "se",
   "sample_subset": "Spec A (GSHP true/false), sensitivity column 4b: full model excluding condition; adj. R2; column 4 = Table 4 (not duplicated)"
  },
  {
   "model_id": "T5-B-c4b",
   "table": "5",
   "column": "B-4b",
   "page": 9,
   "dep_var": "log sales price (EUR)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 19008,
   "r2": 0.8124,
   "se_or_t_in_parentheses": "se",
   "sample_subset": "Spec B (heating type categories), sensitivity column 4b: full model excluding condition; adj. R2; column 4 = Table 4 (not duplicated)"
  },
  {
   "model_id": "T5-A-c4c",
   "table": "5",
   "column": "A-4c",
   "page": 9,
   "dep_var": "log sales price (EUR)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 19008,
   "r2": 0.7609,
   "se_or_t_in_parentheses": "se",
   "sample_subset": "Spec A (GSHP true/false), sensitivity column 4c: full model excluding age and condition; adj. R2; column 4 = Table 4 (not duplicated)"
  },
  {
   "model_id": "T5-B-c4c",
   "table": "5",
   "column": "B-4c",
   "page": 9,
   "dep_var": "log sales price (EUR)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 19008,
   "r2": 0.7658,
   "se_or_t_in_parentheses": "se",
   "sample_subset": "Spec B (heating type categories), sensitivity column 4c: full model excluding age and condition; adj. R2; column 4 = Table 4 (not duplicated)"
  }
 ],
 "coefficients": [
  {
   "model_id": "T4-A",
   "var_name_printed": "C(GSHP)[T.True]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0519,
   "se": 0.006,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Ground source heat pump vs all other heating types"
  },
  {
   "model_id": "T4-B",
   "var_name_printed": "C(heating_type)[T.district_heating]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0126,
   "se": 0.0046,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "District heating vs direct electricity"
  },
  {
   "model_id": "T4-B",
   "var_name_printed": "C(heating_type)[T.GSHP]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0474,
   "se": 0.0062,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Ground source heat pump vs direct electricity"
  },
  {
   "model_id": "T4-B",
   "var_name_printed": "C(heating_type)[T.oil]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": -0.0228,
   "se": 0.0041,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Oil heating vs direct electricity"
  },
  {
   "model_id": "T4-A",
   "var_name_printed": "Sqm",
   "taxonomy_id": "living_area",
   "x_transform": "level",
   "x_unit": "m2",
   "beta": 0.0039,
   "se": 0.0,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Floor area in square metres; SE printed as 0.0000"
  },
  {
   "model_id": "T4-A",
   "var_name_printed": "Age",
   "taxonomy_id": "age",
   "x_transform": "level",
   "x_unit": "years",
   "beta": -0.0051,
   "se": 0.0001,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Building age in years"
  },
  {
   "model_id": "T4-A",
   "var_name_printed": "Distance to CBD",
   "taxonomy_id": "cbd_distance",
   "x_transform": "level",
   "x_unit": "km",
   "beta": -0.0161,
   "se": 0.0015,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Kilometres to CBD (Table 1)"
  },
  {
   "model_id": "T4-A",
   "var_name_printed": "C(condition)[T.excellent]",
   "taxonomy_id": "condition",
   "x_transform": "dummy",
   "x_unit": "ordinal",
   "beta": 0.3189,
   "se": 0.02,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Condition excellent vs decent"
  },
  {
   "model_id": "T4-A",
   "var_name_printed": "C(condition)[T.good]",
   "taxonomy_id": "condition",
   "x_transform": "dummy",
   "x_unit": "ordinal",
   "beta": 0.18,
   "se": 0.0037,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Condition good vs decent"
  },
  {
   "model_id": "T4-A",
   "var_name_printed": "C(condition)[T.poor]",
   "taxonomy_id": "condition",
   "x_transform": "dummy",
   "x_unit": "ordinal",
   "beta": -0.2987,
   "se": 0.008,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Condition poor vs decent"
  },
  {
   "model_id": "T4-A",
   "var_name_printed": "C(lot_ownership)[T.rented]",
   "taxonomy_id": "other",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": -0.0561,
   "se": 0.004,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Leasehold (rented lot) vs owned lot"
  },
  {
   "model_id": "T4-B",
   "var_name_printed": "Sqm",
   "taxonomy_id": "living_area",
   "x_transform": "level",
   "x_unit": "m2",
   "beta": 0.0039,
   "se": 0.0,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Floor area in square metres; SE printed as 0.0000"
  },
  {
   "model_id": "T4-B",
   "var_name_printed": "Age",
   "taxonomy_id": "age",
   "x_transform": "level",
   "x_unit": "years",
   "beta": -0.0049,
   "se": 0.0001,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Building age in years"
  },
  {
   "model_id": "T4-B",
   "var_name_printed": "Distance to CBD",
   "taxonomy_id": "cbd_distance",
   "x_transform": "level",
   "x_unit": "km",
   "beta": -0.016,
   "se": 0.0015,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Kilometres to CBD (Table 1)"
  },
  {
   "model_id": "T4-B",
   "var_name_printed": "C(condition)[T.excellent]",
   "taxonomy_id": "condition",
   "x_transform": "dummy",
   "x_unit": "ordinal",
   "beta": 0.317,
   "se": 0.02,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Condition excellent vs decent"
  },
  {
   "model_id": "T4-B",
   "var_name_printed": "C(condition)[T.good]",
   "taxonomy_id": "condition",
   "x_transform": "dummy",
   "x_unit": "ordinal",
   "beta": 0.1791,
   "se": 0.0037,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Condition good vs decent"
  },
  {
   "model_id": "T4-B",
   "var_name_printed": "C(condition)[T.poor]",
   "taxonomy_id": "condition",
   "x_transform": "dummy",
   "x_unit": "ordinal",
   "beta": -0.2995,
   "se": 0.008,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Condition poor vs decent"
  },
  {
   "model_id": "T4-B",
   "var_name_printed": "C(lot_ownership)[T.rented]",
   "taxonomy_id": "other",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": -0.0593,
   "se": 0.0041,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 8,
   "confidence": "high",
   "notes": "Leasehold (rented lot) vs owned lot"
  },
  {
   "model_id": "T5-A-c1",
   "var_name_printed": "C(GSHP)[T.True]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.2175,
   "se": 0.014,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Ground source heat pump vs all other heating types"
  },
  {
   "model_id": "T5-B-c1",
   "var_name_printed": "C(heating_type)[T.district_heating]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0661,
   "se": 0.0089,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "District heating vs direct electricity"
  },
  {
   "model_id": "T5-B-c1",
   "var_name_printed": "C(heating_type)[T.GSHP]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.2023,
   "se": 0.0142,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Ground source heat pump vs direct electricity"
  },
  {
   "model_id": "T5-B-c1",
   "var_name_printed": "C(heating_type)[T.oil]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": -0.1354,
   "se": 0.0089,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Oil heating vs direct electricity"
  },
  {
   "model_id": "T5-A-c2",
   "var_name_printed": "C(GSHP)[T.True]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0976,
   "se": 0.0096,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Ground source heat pump vs all other heating types"
  },
  {
   "model_id": "T5-B-c2",
   "var_name_printed": "C(heating_type)[T.district_heating]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0394,
   "se": 0.0071,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "District heating vs direct electricity"
  },
  {
   "model_id": "T5-B-c2",
   "var_name_printed": "C(heating_type)[T.GSHP]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.081,
   "se": 0.0097,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Ground source heat pump vs direct electricity"
  },
  {
   "model_id": "T5-B-c2",
   "var_name_printed": "C(heating_type)[T.oil]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": -0.0832,
   "se": 0.0064,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Oil heating vs direct electricity"
  },
  {
   "model_id": "T5-A-c3",
   "var_name_printed": "C(GSHP)[T.True]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0898,
   "se": 0.0094,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Ground source heat pump vs all other heating types"
  },
  {
   "model_id": "T5-B-c3",
   "var_name_printed": "C(heating_type)[T.district_heating]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0353,
   "se": 0.007,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "District heating vs direct electricity"
  },
  {
   "model_id": "T5-B-c3",
   "var_name_printed": "C(heating_type)[T.GSHP]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0762,
   "se": 0.0096,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Ground source heat pump vs direct electricity"
  },
  {
   "model_id": "T5-B-c3",
   "var_name_printed": "C(heating_type)[T.oil]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": -0.071,
   "se": 0.0063,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Oil heating vs direct electricity"
  },
  {
   "model_id": "T5-A-c4a",
   "var_name_printed": "C(GSHP)[T.True]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
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   "se": 0.0064,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Ground source heat pump vs all other heating types"
  },
  {
   "model_id": "T5-B-c4a",
   "var_name_printed": "C(heating_type)[T.district_heating]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0262,
   "se": 0.0049,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "District heating vs direct electricity"
  },
  {
   "model_id": "T5-B-c4a",
   "var_name_printed": "C(heating_type)[T.GSHP]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0436,
   "se": 0.0066,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Ground source heat pump vs direct electricity"
  },
  {
   "model_id": "T5-B-c4a",
   "var_name_printed": "C(heating_type)[T.oil]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": -0.0564,
   "se": 0.0043,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Oil heating vs direct electricity"
  },
  {
   "model_id": "T5-A-c4b",
   "var_name_printed": "C(GSHP)[T.True]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0363,
   "se": 0.0067,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Ground source heat pump vs all other heating types"
  },
  {
   "model_id": "T5-B-c4b",
   "var_name_printed": "C(heating_type)[T.district_heating]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0121,
   "se": 0.0051,
   "t": null,
   "p": null,
   "p_stars": "**",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "District heating vs direct electricity"
  },
  {
   "model_id": "T5-B-c4b",
   "var_name_printed": "C(heating_type)[T.GSHP]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0297,
   "se": 0.0069,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Ground source heat pump vs direct electricity"
  },
  {
   "model_id": "T5-B-c4b",
   "var_name_printed": "C(heating_type)[T.oil]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": -0.0305,
   "se": 0.0046,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Oil heating vs direct electricity"
  },
  {
   "model_id": "T5-A-c4c",
   "var_name_printed": "C(GSHP)[T.True]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0374,
   "se": 0.0076,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Ground source heat pump vs all other heating types"
  },
  {
   "model_id": "T5-B-c4c",
   "var_name_printed": "C(heating_type)[T.district_heating]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0338,
   "se": 0.0057,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "District heating vs direct electricity"
  },
  {
   "model_id": "T5-B-c4c",
   "var_name_printed": "C(heating_type)[T.GSHP]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.0184,
   "se": 0.0077,
   "t": null,
   "p": null,
   "p_stars": "**",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Ground source heat pump vs direct electricity"
  },
  {
   "model_id": "T5-B-c4c",
   "var_name_printed": "C(heating_type)[T.oil]",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": -0.0874,
   "se": 0.0051,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Oil heating vs direct electricity"
  }
 ]
}