I purchased this unit 5-6 years ago for my husband to use in his garage/workshop area. We live in Texas, and it is needed in summer heat and also in the cold of our winters. This has been a great purchase. It is set up well and is easy to regulate and use. We have had no problems with the unit. We had to replace the accordian type exhaust vent hose this year because the old one had become brittle, but that is to be expected. Would recommend!