After googling what was the problem with our wood burner, i.e.. strong smell of Kreosote and unable to find anything, I was surprised to see this product on the shelf of my local store. I was initially apprehensive as I thought it was expensive, however, after having several 'experts advice' each saying I needed a new stove, I thought it was worth a go. We first burnt the log two nights ago and lit a fire again last night. This morning, there is absolutely no smell in the room at all. Amazing. I will definitely use again in the future .