# Knob and tube articles

> Articles on knob and tube wiring in Boston-area houses: winter loads on old circuits, Mass Save insulation, the state code update and a triple-decker rewire.

URL: https://deckerbostonknobandtube.com/blog/

## Latest posts

- [Illustrative Walkthrough**What a Boston triple-decker rewire looks like: an illustrative walkthrough** An illustrative, composite walkthrough, not a real job: how an occupied three-unit Boston triple-decker moves from the first visit through inspections to the papers at the end.](https://deckerbostonknobandtube.com/blog/what-a-boston-triple-decker-rewire-looks-like/)
- [Dates and Deadlines**When a Mass Save home energy assessment finds knob and tube** Insulation plans in older Boston-area houses tend to follow the same cycle: an assessment, a recommendation, then a stop when the assessor spots knob and tube. This is the path from that stop to the insulation.](https://deckerbostonknobandtube.com/blog/mass-save-insulation-and-knob-and-tube/)
- [News**The Massachusetts electrical code update and old wiring** Massachusetts now inspects new electrical work to the 2026 National Electrical Code with state amendments. For knob and tube already in a house, it matters only once someone works on the wiring.](https://deckerbostonknobandtube.com/blog/massachusetts-electrical-code-and-old-wiring/)
- [Seasonal**Space heaters on knob and tube circuits in a Boston winter** Boston averages about 92 nights a year at or below freezing, and a plug-in heater in a cold back bedroom can sit near an old circuit's limit for hours at a stretch.](https://deckerbostonknobandtube.com/blog/space-heaters-on-old-wiring-in-a-boston-winter/)