Mini splits run nearly all the time. But, unlike forced-air systems, they don’t use nearly as much energy. That’s because ductless heating and cooling systems use low-power modes that maintain the temperature without clicking on and off all the time. Here at John Cipollone, we sell a lot of ductless systems to homeowners in Havertown, PA, the Main Line, and... 
If you leave your air filter in your furnace for too long, it can eventually get so dirty that the unit stops working completely. You should change your filter every month. After a while, it becomes clogged. Of course, it takes a while before a dirty filter causes the furnace to shut off completely. And, you’ll notice plenty of warning... 
The MERV rating in your air filter determines the size of the particles that it can trap. The higher the rating, the smaller items the filter prevents from passing through your HVAC system. You can upgrade from the standard rating but can’t go too high on a residential unit. This item, also called a furnace filter, is an essential part...