Since this word is made up of a single kanji, it should use the kun'yomi reading. When learning the kanji, you didn't learn that reading, so here's a mnemonic to help you with this word:
Look down! You're holding something covered in fur. It's a furry kettle (け)! It's the weirdest kettle you've ever seen, but presumably it keeps the water hot for much longer.
My leg hair is bushy.
Our dog's fur falls off a lot.
Right now the most important thing to me is the hair on my head.