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I know table 19 (cdn code, CEC ) states that tray cable is for tray only, BUT on a technical side why isnt it ok to use for residental (beside because the code book says no). when i look at tray cable i can see the jacket is thicker, stronger, and has UV protection but lumex (ect) isnt as...

Our neighbor put in a new fixture in the basement and like the rest of the bulbs in the house they are all short-lived. Compact florescent bulbs dies in 6 wks and the same with the new 50w halogens in the new fixture. Any idea what is causing this? I have tightened or checked ½ the wires in the...

I would like to install a radiator in the intake air of my furnace ( see drawing) and I have 2 questions 1. Is it possible to buy a lead free radiator that I could install (otherwise project is a scrap) 2. is there any problem here that I don’t see I plan on putting a drain tray hose to...

i want to run a line from my house to a furnice in my garage (35'). I plan on using black pipe and was thinking of using 3/4". As well i plan on doing all the work except the final conections (i will hire someone) my questions are 1) can i oversize my line without (3/4 instead of 1/2) any...