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138f5688e0
A PasHub survey can lodge a manufacturer's measured cylinder loss ("What is
the cylinder measured heat loss: 0.94 kWh/24 hours") — the SAP 10.2 §4
(48)-(50) declared-loss factor that must override the Table 2 V×L×VF
insulation computation. The site-notes path dropped it two ways: the
extractor looked for "Cylinder Measured Heat Loss:" (matches 0 fixtures) while
the PDF label is "What is the cylinder measured heat loss:" (92 fixtures), and
the mapper never wired `cylinder_heat_loss` even when captured. So the
calculator fell back to the age-band insulation default — a lossier cylinder
than surveyed — over-costing hot water and under-rating SAP.
Fix the extractor label and add `_pashub_cylinder_measured_heat_loss` (parses
the leading float, returns None for "Not known"), mirroring the gov-API and
Elmhurst paths that already pass `cylinder_heat_loss` through. 3 Woodmans
Court -1.33 → -0.09; LRHA cohort within-0.5 58.3% → 60.2%, MAE 0.515 → 0.496.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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|---|---|---|
| .. | ||
| fixtures | ||
| __init__.py | ||
| test_elmhurst_end_to_end.py | ||
| test_elmhurst_extractor.py | ||
| test_end_to_end.py | ||
| test_extractor.py | ||
| test_heating_systems_corpus.py | ||
| test_pashub_sap_accuracy.py | ||
| test_pashub_sap_accuracy_lrha_wave3.py | ||
| test_pashub_sap_accuracy_wythenshawe.py | ||
| test_pdf.py | ||
| test_room_heater_worksheet_001431.py | ||
| test_summary_pdf_mapper_chain.py | ||