John works with Gary Jones (who is also a registered gasfitter) when cleaning central heating ducts. The ducts in a normal house (8 outlets) can be cleaned in 2 to 3hrs. This includes cleaning the return airline and circulating fan.
There is little if any dust entering the home during the process, the work is carried out using a compressed airline to loosen the dust and an industrial vacuum cleaner coupled with a vent mask to immediately take the dust away. The job is completed with a lavender scented deodorant.