“Thank you for the service you have offered us and also we would like to say that your Flue Cube does exactly what it says it will do. We were really skeptical as we had had so many problems with our chimney and were on the verge of taking the wood burner out, we tested it on a very windy day and were so surprised not to have any smoke blow back and could actually see the fire through the glass instead of just seeing a black door. Thank you very much, Kind regards, Roger and Glenys Brown”