On 13/01/13 17:35, Dave Liquorice wrote:
2nd Year of running the woodburner...

That sounds a rather fast soot build-up to me. When I was heating this
place by woodburner alone (Jotul, similar size, similar fuel, similar
rate of consumption, no backboiler) I swept it myself twice a year and
got out out half a bucket of soot from the flue, and only light
sweepings from within the stove itself.