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Replace the flat placeholder scalars (boiler £3000; tune-up £500/£900) with a per-dwelling composite cost, mirroring the ASHP architecture (ADR-0025): a `HeatingRates` table (data, `heating_rates.json`), typed `BoilerCostInputs` / `TuneUpCostInputs`, pure `Products.boiler_bundle_cost` / `tune_up_cost`, and modelling-layer interpreters that read the dwelling into those inputs. The cost mirrors the Simulation Overlay component-for-component, sharing the controls + cylinder pricing across both options: - tune-up (standard) = standard controls + cylinder fixes - tune-up (zone) = zone controls + cylinder fixes - boiler upgrade = £3200 all-in + standard controls (only when the upgrade fired a controls change) + cylinder fixes Standard controls are priced INCREMENTALLY — only the parts missing to reach SAP 2106 (programmer £120 / room thermostat £150 / TRV £35×radiators), read from a Table 4e Group-1 feature map so a dwelling that already has a room thermostat + TRVs is only charged the programmer. Zone controls are a full smart kit (hub £205 + smart TRV £50×radiators) — the smart TRV is itself the room sensor, so there is no separate per-room sensor line. Cylinder fixes: jacket £50 (when under-insulated) + thermostat £150 (when absent). The boiler is a like-for-like wet swap (no radiators/flue/pipework — eligibility already requires an existing wet boiler), so those dead-code extras are not modelled. Figures are research-validated 2025/26 UK installed costs (legacy Costs.py lineage); fully-loaded totals with one contingency on top (Model B, not the legacy VAT/preliminaries engine). Contingency: boiler 0.26; tune-ups 0.10 (was a 0.15 placeholder). ADR-0027 records the design; CONTEXT.md's Heating Eligibility entry updated to cover the partial boiler/tune-up family + composed cost. Products cost pins (delta<=1e-9) + interpreter tests + generator composite-cost assertions. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |
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| .. | ||
| fixtures | ||
| __init__.py | ||
| _elmhurst_recommendation.py | ||
| test_ashp_cost_inputs.py | ||
| test_considered_measures.py | ||
| test_elmhurst_cascade_pins.py | ||
| test_floor_recommendation.py | ||
| test_glazing_recommendation.py | ||
| test_heating_cost_inputs.py | ||
| test_heating_recommendation.py | ||
| test_lighting_recommendation.py | ||
| test_measure_dependency.py | ||
| test_measure_type.py | ||
| test_optimiser.py | ||
| test_overlay_applicator.py | ||
| test_package_scorer.py | ||
| test_plan.py | ||
| test_plan_valuation.py | ||
| test_products.py | ||
| test_roof_recommendation.py | ||
| test_scoring.py | ||
| test_solar_config_selection.py | ||
| test_solar_overshading.py | ||
| test_solar_potential.py | ||
| test_solar_products.py | ||
| test_solar_recommendation.py | ||
| test_valuation.py | ||
| test_ventilation_recommendation.py | ||
| test_wall_recommendation.py | ||
| test_window_extraction_001431.py | ||