Growing jalapenos in pots

I want to get into growing chilis and I decides I want to get started with Jalapenos. I want to grow chilis but the problem is it's already the middle of Summer so if I plant now I can only harvest in fall/winter. Because of this I need to grow the indoors in pots. So my question toward my fellow chili growers:

How hard is it to grow Jalapenos in pots?

I can get my hands on 20L pots so that's not a problem, I can also get nitrogen and good soil (I found a recommendation to not get high quality one). One problem I faced is that I would need heat lamps to help the growing process. My guess is I can't go without them because in my country in late fall, winter, early spring it's pretty cold. How quickly do they grow and how tall they get? One concern I have is they will get to big to grow indoors since I don't have a ton of space inside. I have heard that there are kinds of chilis that stand the cold better (the ones with hair on them) so do you recommend me to get them? Or do you recommend me to wait till january? I'm really excited to start growing them and I'm a bit inpatient. Thanks for the advice in advance.