A central air system can be a great addition to your home — keeping your home cool and comfortable in the summer months and you may even add value to your home. How much it costs to install ...

more affordable option to install than a true central air system. You can also consider an air-source heat pump in place of an AC-only system. Heat pumps can provide both heating and cooling.

Forty-one independent cooling systems are installed in 33 buildings on the St. Paul campus. Engineer Jay Denny said 15 of those buildings are hooked up to the central chilling system, including ...