My friend lightened(点燃用lighten) mosquito-repellent incense in the drawing room(living room 是起居室的意思).But I have a fear of heat(翻译为对热有恐惧更贴切原文意思),thus(添加因此thus,接上半句因为热而导致的结果) I opened all the windows and doors and mosquitoes are drived to my room by mosquito-repellent incense.