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Is it true that number 2 heating oil and diesel fuel are substantially the same product? If not, does diesel differ in ways that would harm a typical residential oil-fired boiler? I'm just wondering about keeping a small supply of diesel on had for emergencies during the coming winter...

Most of the outlets in my 1920s era house are still wired with the original system of two wires in a flexible metal conduit terminating in a metal box. The outlets have two slots to accept a two-pronged plug. T All circuits run back to a modern breaker in the basement that is about six...

This is probably a pretty basic question, but I'm not proud. My old house built in the 1920s has an updated 200 amp breaker panel. Some circuits are still wired with the original flexible metallic conduit containing two fabric covered wires. Other circuits (kitchen, bathroom, and garage) have...

Based on the discussions I've seen here and on other forums, I just re-plumbed my domestic hot water system so the outlet of the hot water coil in my oil-fired boiler connects to the inlet of the electric hot water heater that had been standing unused next to it. The electric hot water heater...

A basic question. If I insulate the hot water heating pipes that run from my boiler in the basement to radiators on the floor above, I'll reduce the amount of heat lost from the pipes to the cold basement air. However, by doing this, I'm effectively removing the main heat source from my...