To help reduce creosote build-up in your wood-burning chimney system, burn only well-seasoned hardwoods. If you don't know how to build a hot, safe fire, ask your certified chimney sweep for tips on proper wood-burning techniques.
Insects love warm electrical components and air conditioners are full of them. If you want to keep insects out, experts say do not use insecticides, because the electrical components will not like them. One option is to get a special cover for your relay switch, but be aware that it has to be installed by an air conditioning technician. The cheapest (and easiest) way to keep them away is to use a flea collar. To install the flea collar, shut the power off to the air conditioner and simply placed the collar near the relay switch.