If your home contains a boiler system, you might stumble on a roadblock when exploring air conditioning options. The lack of preexisting ductwork in your home seemingly limits your options. Fortunately, there are several solutions available to keep things cool.
If you only need to cool a room or two in your home, window units are a potential option. You can find a small unit for around $150 - $200 and place it in your home without much trouble. However, this option will also block your window view and can make quite a bit of noise.
Attic Air System
An attic air system involves an outdoor condenser and an attic-based air handler. While this kind of system can easily cool more rooms than a small window unit, you’ll need to have ductwork installed to carry the airflow to each room. On the upside, because the system is in the attic, it will also be a space-saving option and won’t be much of an eyesore, aside from the ducts. Just don’t forget to conduct the routine upkeep.
High Velocity System
Much like the attic air system, a high velocity system uses an outdoor condenser and an air handler in the topmost room in your house. The major difference is the method of cool air delivery. When dealing with a high velocity system, air is circulated throughout the home via small rubber tubes, rather than ductwork. The placement of the system saves space, the tubes are less intrusive than ductwork, and, as the name implies, the cool air is pumped through the home quickly. Unfortunately, this solution also tends to be the most expensive.
Ductless Mini Splits
Ductless AC and heating units, such as the Mitsubishi ductless systems, offer a common and inexpensive cooling solution for homes with boiler systems. These often combine the best traits of the previously mentioned options. For example, the units can be placed above doorways or in other high places, where they don’t interfere with your home’s aesthetic. In addition, they operate quietly and efficiently.
These Mitsubishi air conditioning units feature an outdoor condenser and indoor air handler, but the lack of ducts makes them easy to maintain. You simply need to clean the filters every so often.Ductless heating and air units also offer zoning features, so you can specify which rooms benefit from conditioned air.