Overload protection
Fuses and circuit breakers will stop the electricity in a wire when the load is excessive or there is a short circuit. They prevent overheating of wires from too much electricity trying to flow through a wire that is not large enough to handle it.
Stray current protection
G...
In my experience, heating ducts that run through attics cause serious problems in snow country. Don't let a contractor talk you into it.
In warm climates it is common practice to run heating and air conditioning ducting through attic spaces simply because it is easy to do. Unfortunately this ...
How do you get enough space above the wall and below the roof for both massive insulation and ventilation? One way in new construction, or even in the rebuilding of a roof, is what we call a Raised Heel Truss. This design forces the overhang of the house further out from the house, but does gi...
(updated Sept 2012)
Since the early 80's Urea-Formaldehyde Foam Insulation (UFFI) was banned in Canada and the US. The Canadian ban is still in place while it is now legal again to sell Urea-Formaldehyde based foam in the US and Europe. Whether it ever was or still is actually a health problem ...
Here are a few tips when it comes to re-wiring an old lamp.
Use the existing wire to pull the new wire through. You need to join them in a way that does not create a lump in the wire.
Avoiding a lump
On the old pair of wires, cut one wire shorter than the other and s...
Note 2014 :
As you read below you will find a detailed history of Vermiculite insulation and problems it had starting in 1920. Just recently I have become aware of houses built around or before 1920, yes 100 year old houses, where it was discovered that there was about 2 inches of Vermiculite u...
John wants to cerate a wine cellar in his basement. Here I have answered him throughly enough to perhaps help you detail your own cold room, whether it is under a concrete porch, or just built in the corner of the basement -- trying to deal with the questions of insulation, condensation, vapour ...
Drum Cymbal noises --> Furnace Ducting
Gina in Saskatoon is complaining about drum cymbal-like crashes that happen every time her furnace goes on. This is common when you have smooth flat ductwork. The heat and pressure of the air can cause the large flat surface of sheet metal to flex eithe...
Tim lives in a 13 year old house and is rather disturbed by the fact that he can see the studs and ceiling joists as if they were coming right through the wall.
Don't panic Tim, this is unfortunately very common. It relates to a poor job of insulation in a cold climate.
You see, the ...
Gordon from Montreal writes asking about the use of Celotex foam insulation (with aluminium foil cladding on both sides- 4 X 8 sheets). He writes:
"For your information, the Celotex product is considered by many, to be a premium insulator for residential installations. Ironically it is made in C...
