When it comes to air conditioner replacement, changing both the indoor and outdoor units at the same time will increase the cost of the project. Despite this, even if one of the units still works, replacing the other too makes sense for several reasons. [...]
In any forced-air HVAC system, the filter must be subject to constant maintenance. While this upkeep isn't necessarily demanding, you can’t afford to neglect it if you want to avoid the most common AC, furnace and heat pump problems. [...]