Where can you locate a furnace in runescape?

I'll name a few places you can find them:

- Lumbridge, just follow the road east of the castle

- Edgeville, pretty much near the bank.

- Falador, near the teleport spot.

Those are the major ones that are easy to come by, there are a lot more, but these ones are within range of a bank, except lumbridge which is a small walk compared to the others listed.