{

"furnaces": [
  {
    "template": "DOE Ref Pre-1980",
    "equipment_type": "Warm Air Duct Furnaces",
    "fuel_type": "NaturalGas",
    "electric_power_phase": null,
    "minimum_capacity": 0.0,
    "maximum_capacity": 9999999999.0,
    "minimum_combo_unit_cooling_capacity": null,
    "maximum_combo_unit_cooling_capacity": null,
    "subtype": null,
    "start_date": "1919-09-09T00:00:00+00:00",
    "end_date": "2999-09-09T00:00:00+00:00",
    "minimum_annual_fuel_utilization_efficiency": null,
    "minimum_thermal_efficiency": 0.8,
    "minimum_combustion_efficiency": null,
    "standby_mode_power": null,
    "off_mode_power": null,
    "notes": null
  },
  {
    "template": "DOE Ref Pre-1980",
    "equipment_type": "Warm Air Furnace",
    "fuel_type": "NaturalGas",
    "electric_power_phase": null,
    "minimum_capacity": 0.0,
    "maximum_capacity": 9999999999.0,
    "minimum_combo_unit_cooling_capacity": null,
    "maximum_combo_unit_cooling_capacity": null,
    "subtype": null,
    "start_date": "1919-09-09T00:00:00+00:00",
    "end_date": "2999-09-09T00:00:00+00:00",
    "minimum_annual_fuel_utilization_efficiency": null,
    "minimum_thermal_efficiency": 0.8,
    "minimum_combustion_efficiency": null,
    "standby_mode_power": null,
    "off_mode_power": null,
    "notes": null
  },
  {
    "template": "DOE Ref Pre-1980",
    "equipment_type": "Warm Air Unit Heaters",
    "fuel_type": "NaturalGas",
    "electric_power_phase": null,
    "minimum_capacity": 0.0,
    "maximum_capacity": 9999999999.0,
    "minimum_combo_unit_cooling_capacity": null,
    "maximum_combo_unit_cooling_capacity": null,
    "subtype": null,
    "start_date": "1919-09-09T00:00:00+00:00",
    "end_date": "2999-09-09T00:00:00+00:00",
    "minimum_annual_fuel_utilization_efficiency": null,
    "minimum_thermal_efficiency": 0.8,
    "minimum_combustion_efficiency": null,
    "standby_mode_power": null,
    "off_mode_power": null,
    "notes": null
  }
]

}