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Knob-and-Tube, MWBC, and Other “Out of Code” Circuits — GFCI Strategy & Battery Switches

Series: No-Neutral Smart Switches | Article 9/10 | Slug: knob-tube-mwbc-out-of-code-gfci-battery-switches | Focus: GFCI-breaker strategy, battery-switch + fixture relay, AHJ conversation guide By Nora Thorne // IoT Architect & Smart Home…

the difficult challenges of retrofitting smart lighting controls into older homes (1880s–1950s) where neutral wires are missing at the switch boxes
Published Nov 6, 2026 Category Uncategorized Standard Local-First