All-time summertime heat records keep buckling under the weight of increasing worldwide temps-- a pattern that hits home, actually and figuratively, when you get your regular monthly air conditioning costs. Errors you're making with your house AC may be damaging its performance, effectiveness, and security, experts say.If you have a severely kept system, it can end up being contaminated with microorganisms that might be harmful if breathed in. Common signs are asthma issues and allergies.Here…See More