text: To be honest, I doubt it's possible. You're burn rate seems about right ( I used to use lx8 ans lx10 and was getting approx 3g/h per wick - that's from top of my head, I can't remember exactly). Soy doesn't really burn any slower than any other wax - there may be variations that depend on wicks but I can't really see what wick would give 60-75 hour burn for a 3 wick candle for your type of container. It's more likely for a 350g candle with one wick and a container that's taller than the one you use (60h ÷ 4 = at least 15 burns). I'm thinking that such a small consumption rate means a very shallow pool ( + poor hot throw maybe, I'm not mentioning tunneling) and I don't think it's possible to have a shallow but wide pool consistently all the way down. I doesn't feel right but who knows. I'd be inclined to buy it and test it.