{
 "page": "/us/lifespan/oil-tank",
 "built_from": "data/lifespan/facts/oil-tank.json",
 "rows": [
  {
   "type": "Underground tank, unprotected steel",
   "measure": "approximate life expectancy (CT DEEP guidance)",
   "value": 15,
   "value_high": null,
   "unit": "years",
   "source": "CT DEEP, Home Heating Oil Tank Maintenance",
   "url": "https://portal.ct.gov/deep/emergency-response-and-spill-prevention/residential-tanks/home-heating-oil-tank-maintenance",
   "data_years": "Content Last updated October 2021",
   "read": "2026-10-29",
   "area": "Connecticut",
   "n": "not published by the source",
   "se_points": null,
   "fact_id": "ct-deep-oil-tank-underground-unprotected-steel"
  },
  {
   "type": "Outside aboveground tank",
   "measure": "approximate life expectancy (CT DEEP guidance)",
   "value": 25,
   "value_high": null,
   "unit": "years",
   "source": "CT DEEP, Home Heating Oil Tank Maintenance",
   "url": "https://portal.ct.gov/deep/emergency-response-and-spill-prevention/residential-tanks/home-heating-oil-tank-maintenance",
   "data_years": "Content Last updated October 2021",
   "read": "2026-10-29",
   "area": "Connecticut",
   "n": "not published by the source",
   "se_points": null,
   "fact_id": "ct-deep-oil-tank-outside-aboveground"
  },
  {
   "type": "Underground tank, fiberglass, cathodically-protected steel or composite (WARRANTY term, not a lifespan)",
   "measure": "warranty term named in a replacement condition (not a lifespan)",
   "value": 30,
   "value_high": null,
   "unit": "years",
   "source": "CT DEEP, Home Heating Oil Tank Maintenance",
   "url": "https://portal.ct.gov/deep/emergency-response-and-spill-prevention/residential-tanks/home-heating-oil-tank-maintenance",
   "data_years": "Content Last updated October 2021",
   "read": "2026-10-29",
   "area": "Connecticut",
   "n": "not published by the source",
   "se_points": null,
   "fact_id": "ct-deep-oil-tank-underground-fiberglass-30y-warranty"
  },
  {
   "type": "Main space heating fuel = Fuel oil (share of US households that used space heating, 2020; not a tank life)",
   "measure": "weighted share",
   "value": 4.2,
   "value_high": null,
   "unit": "percent of households",
   "source": "U.S. Energy Information Administration, 2020 Residential Energy Consumption Survey (RECS), public-use microdata file v7",
   "url": "https://www.eia.gov/consumption/residential/data/2020/xls/RECS%202020%20Codebook%20for%20Public%20File%20-%20v7.xlsx",
   "data_years": "2020",
   "read": "2026-10-29",
   "area": "US",
   "n": 17745,
   "se_points": 0.1,
   "fact_id": "recs2020-fuelheat-fuel-oil-us"
  }
 ]
}