Actually, Santa usually doesn't come down the chimney at all in Sweden. He usually visits families on Christmas Eve and hands out gifts.
In Sweden Tomten serves the same role as Santa (similar to how in the UK, Father Christmas and Santa merged into one). Tomten comes in through the front door, but you have to turn the lights down low (ideally candlelight), and he has a goat.
I get half of the 'ren/renen'-questions wrong, because I type 'deer' instead of reindeer. So in this case I translated it into 'a dirty deer' :-)
Is that ett riktigt fel, or are they något liknande? :-)