Hi Philip
We have had the Windkat for four months now and its working fine, no need to check for down drafts anymore (it looks good to).
The Windkat is working really well. I think we have been through most wind directions, with only a couple of small puffs of smoke in a seriously strong westerly. The last email I sent I had checked the flu when the wind was in the south west and there was a down draft, in the past (with other cowls) this has meant the room filling with smoke on lighting a fire. After using the Windkat I tried lighting the fire and it worked and has been working ever since.
Thank you for all your help,
Kind regards
Barry