Hello guys i am new to the hobby and have done around 4 months of research but still have some questions regarding this hobby hopefully it can be answered
Welcome!
1) Did anyone in Canada ever needed to use a Chiller don't really wanna get one since its so expensive, i live in Toronto btw
Yes, some people need to use chillers in the summer. The main factor is whether your home has central A/C or not, and which type of lighting you're looking to use. You posted this in the FOWLR section, so I'm assuming you won't have corals, so you won't need high output lighting, plus you can turn the lights off if it gets too hot, so you probably won't need a chiller.
2) I have a hood on my tank how should i put my fans and power heads inside and can still properly cover the tank
Usually you cut a notch out and run the lines through the notch. A jigsaw or hacksaw should do the trick if it's plastic.
3) Has anyone try ecoliverock.org, how was the rock and did it take longer 4-6 weeks than usual to cycle because it is man-made?
I haven't used this rock. I'm not a fan of dry rock at all, so I probably wouldn't be a fan of this rock either. It takes a long time (~a year-ish) for dry rock to function as live rock as far as establishing anaerobic bacteria inside the rock which help with denitrification which is the off-gassing of nitrate (in the form of nitrogen). The short, simple of it is that you can easily get an unusual nitrate build up in tanks started with dry rock and it can be difficult to get a handle on it. For this reason, I prefer real live rock or at the very least as much live rock as possible (say 50/50).
4) i have a 55 gallon FOWLR how many powerheads do i need?
Thanks
First, keep in mind that a marine aquarium needs MUCH more flow than a freshwater aquarium, so don't be too surprised once you plug them in and you see how powerful they are. You will probably need two that are in the 1000-1200 gph range each or one that is around 2000 gph. What is your budget?
Tunzes are very good quality pumps and would be my choice - the non-controllable ones are reasonably priced. The Tunze 6015 is about 1200 gph and are about $55 each, or a 6065 is about 1700 gph and is $150.
If you're looking for something cheaper the Hydor Koralia pumps have been reasonably good (for cheap pumps) for me. They don't go up to 2000 gph though. The Koralia 1500 gph is about $75 and the 1150 is about $65. Interestingly, the Tunze 6015 is cheaper than the Koralia 1150, and the Tunze is a way better pump.
You could buy one Tunze 6015 and one Koralia 1500. 
Another thing, a 55-gallon tank is VERY small for a FOWLR, what type of fish are yo planning to add? 55-gallons will be limiting for fish that are usually kept in FOWLR tanks (ones not compatible with corals).
Some people like Jebao pumps. If you buy Jebao, buy a spare (they break down lots lol). They are cheap enough to buy a spare though. 