Even in San Antonio, where winters are relatively short compared to other areas of the nation, furnace maintenance is important. Professional furnace maintenance helps ensure safe and efficiency operation. When your heating system runs efficiently, it saves you money.  Changing filters once a month is a project most homeowners can perform themselves. Monthly filter maintenance is recommended because when filters become clogged, your system has to work harder to force warm air in to your home.  Essentially, this means higher heating costs to you. Continue reading →