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Your Basement Heating and Cooling OptionsSeptember 11th, 2013 by
Making a belowground space livable—including decorating and installing lighting and plumbing fixtures—comes with unique challenges. Fortunately, providing heating and cooling is one of the easiest basement remodeling problems to solve. The solutions are straightforward, and the logistics of implementing them are similar to what you’d encounter when heating and cooling an aboveground addition.
In fact, basement heating and cooling is so straightforward that you may not have much say in the matter; the condition of your finished space and its frequency of use, the capacity of your existing HVAC system, and your local climate will probably suggest the easiest and most efficient method.
As you read about the most reliable basement heating and cooling options, note that each is suitable for a particular set of circumstances.
Extending Your Existing HVAC System
Whether or not your existing HVAC system can also heat and cool your basement depends on a few factors. Primarily, the existing system must have the capacity to service the basement in addition to the other parts of the house it already heats and cools. A qualified HVAC technician can evaluate the system—accounting for various factors such as the naturally cooler ambient temperature of the basement—and determine if it will still be effective with the additional load.
Basement HVAC ductwork
If it’s determined that the existing HVAC system can be used to heat and cool the basement, the only other step is to extend the ductwork into the new living space. This will be easiest if the basement is unfinished or in the initial stages of remodeling. Extensions and registers can be attached to the main supply and return ducts, and the new ductwork can be concealed between the joists of the unfinished ceiling or within as-yet-unbuilt closets.
Best Heaters for Your Basement
If the basement is already finished and the existing supply and return ductwork is inaccessible, it’s still too soon to consider investing in a new HVAC system for the basement. Other climate control options for your newly finished space include an array of electric resistance heaters—appliances that have the same kind of electric heating element as everyday portable space heaters.
Baseboard heaters are a popular choice in cold climates, where heating is a greater priority than cooling, although these heaters have their limitations: many take about 30 minutes to warm up, and their range is limited, so there should be at least one per room.
However, their assets include a relatively low cost and the simplicity with which they can be installed; an electrician can hard-wire a 240-volt baseboard heater in short order. Some portable 120-volt baseboard heaters, while less efficient and less effective, can even be plugged directly into an outlet.
Other resistance heating options
Other resistance heating devices include wall-mounted units and radiant heat systems, which rely on heating cables embedded in the ceiling or, more often, the floor. The warmth provided by these heating solutions will feel different from that provided by a forced-air HVAC system, but their relative ease, economy, and effectiveness in a smaller space like a basement make them perfectly suited to the task.
Ductless Mini-Split Air Conditioners
Mini-split systems are a common solution for heating and cooling both aboveground and belowground home additions. Mini splits are essentially small heat pumps, capable of both heating and cooling, and they include an outdoor compressor and an indoor air handler connected by tubing that carries refrigerant.
Advantages of mini-split air conditioners
Although mini-split systems can be expensive, their ease of installation and versatility may make the cost worth it. Whereas a window-mounted A/C unit would probably be unfeasible in a basement, mini splits are wall mounted and require only a three-inch hole to connect the indoor and outdoor units.
Also, the outdoor compressor can be located as far away as 50 feet from the indoor air handler, allowing homeowners to place the unit inconspicuously. One final advantage: mini-split HVAC systems are ductless and therefore not susceptible to losing energy through leaky ductwork.
If you were initially worried that your solutions to the problem of heating and cooling your basement would be limited, you may now have an overabundance of options. Remember the three main items to figure out before selecting the best option for your home:
- Ask yourself how frequently you’ll be using your basement.
- Find out if it’s possible to extend your existing HVAC system.
- Determine if your regional climate will make either heating or cooling a greater priority.
Once you’ve taken stock of your finished or semi-finished basement, the right method for heating and cooling it will become more apparent.
If you found this article helpful, here are more tips to prepare for your basement remodel.