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Resolve an electric-boiler override to SAP 191 dragging electricity 🟥

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Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Khalim Conn-Kowlessar 2026-07-01 15:42:25 +00:00
parent de4e44aacc
commit e83c420f3b
1 changed files with 13 additions and 0 deletions
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13
tests/domain/epc/test_main_heating_system_overlay.py
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@ -101,6 +101,19 @@ def test_solid_fuel_room_heaters_decode_off_gas_cpsu(
assert simulation.heating.sap_main_heating_code == code
def test_electric_boiler_decodes_to_191_and_drags_electricity() -> None:
# An "A rated NA" boiler (all-electric per its main_fuel override) was funnelled
# into Gas CPSU (120, mains gas). It is a direct-acting electric boiler (SAP 191)
# and unambiguously electric, so the archetype drags electricity (29) — never
# leaving a mains-gas fuel to bleed through (ADR-0045).
simulation = main_heating_overlay_for("Electric boiler", 0)
assert simulation is not None
assert simulation.heating is not None
assert simulation.heating.sap_main_heating_code == 191
assert simulation.heating.main_fuel_type == 29
@pytest.mark.parametrize(
("main_heating_value", "code"),
[