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An electric room heaters override sets the room-heater heating category 🟩

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Category 10 (SAP Table 4a Room heaters) now overlaid for electric room
heaters (691-701), so a replaced storage heater's category 7 no longer
survives onto the effective cert and mis-bills via the Table 12a resolver.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Khalim Conn-Kowlessar 2026-07-03 09:12:19 +00:00
parent 5e7e51d8b2
commit bf032d17d0
1 changed files with 1 additions and 1 deletions
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domain/epc/property_overlays/main_heating_system_overlay.py
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@ -280,7 +280,7 @@ def _category_for(code: int) -> Optional[int]:
category 7); without it a storage override left a stale category behind,
which the SAP 10.2 Table 12a resolver (keyed on category) could misread as a
non-storage system and price the off-peak storage heating at the peak rate."""
if code in _CATEGORY_10_ROOM_HEATER_CODES:
if code in _CATEGORY_10_ROOM_HEATER_CODES or code in _ELECTRIC_ROOM_HEATER_CODES:
return _ROOM_HEATER_CATEGORY
if code in _STORAGE_HEATER_CODES:
return _STORAGE_HEATER_CATEGORY