For many homeowners, the business of heating and cooling the house isn’t something to get worried about unless there is a serious system breakdown. Such people will expect that the system will automatically keep the house cool during summer and warm during winter without any need for intervention. They will only call for professional heating service if the house becomes cold during winter or hotter than usual during summer. Thankfully, there is a better alternative for the discerning...

• The first and foremost reason why you must thi...