Arduino with PID controller

Dear All,
I am totally new in Arduino programming. I am having one chamber and I wanted to control the temperature of that chamber from 0 to 80°c. I wanted to know, How should I do that. I don't have any idea about hardware. Can any one explain what kind of hardware I need to control the temperature of that chamber.

I will be thankful to you, if someone can advise me on my first ever project.

Regards,
Ravi

Can any one explain what kind of hardware I need to control the temperature of that chamber.

Heating only? Cooling only? Both?

How will you know the current temperature? The desired temperature?

How much can the current temperature safely overshoot the desired temperature? For how long?

How big is the space? How rapidly can you heat it? How rapidly do you need to?

You have provided far too little detail.