Captures the two slices that closed oil 1 from +2.66 → +1.18 SAP via
Table 3 primary-loss extension (.146) + Appendix D §D2.1 (2) Equation
D1 wiring for non-PCDB Table 4b boilers (.147). Highlights the user
directive that surfaced this session ("BRE/Elmhurst software follows
spec exactly; no special non-spec handling") and the resulting pin
shifts on cert 0240 + 6035 (combi-no-cylinder golden fixtures
re-pinned per spec correctness).
Ranks next-slice candidates: oil 1 Table 4f auxiliary energy (~+0.4
SAP closure remaining), electric 5 -1.43 regressed by .145, solid
fuel 2/3 anthracite outliers, community heating + electric storage
unblocking.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
