In a well-sealed home, your energy requirements for both heating and cooling are much lower – but you may not find yourself getting much in the way of fresh air. Since air in a home tends to circulate within the home, pollutants (whether generated indoors like cooking fumes or infiltrating from the outside) tend to concentrate, making ventilation systems necessary for optimal air quality and home comfort.
Ventilation focuses on flushing out old air, bringing in new air, or both. There are three basic types:
- Exhaust ventilation pushes air out of your home, letting new air come in to replace it. It’s especially useful in places like kitchens, bathrooms and workshops, where high humidity or fumes may need to be mitigated from living and working areas, but when it’s humid inside, the lowered pressure of your home may draw outside humidity into cracks and air leaks.
- Supply ventilation pulls fresh air into your home – which can be especially desirable in areas such as bedrooms and living rooms, where residents spend a lot of time. This creates a higher pressure inside your home than outside it, which can force air out through cracks and gaps.
- Balanced ventilation systems are a combination of the above. They maintain indoor air pressure by bringing in as much fresh air as they vent old air.
These systems can be improved by a heat recovery ventilator, which transfers heat between incoming and outgoing air to keep your home at a constant temperature.
If you’re looking for a new ventilation system, look for these qualities:
- Noise — Choose a system that can run quietly, so that you’re not replacing indoor air pollution with noise pollution.
- Good control systems — Ventilation should be easy to access and adjust but hard to turn on or off accidentally.
- Distribution and circulation — Your fresh air should reach all rooms in your house, not just the one with the intake vent.
- Filtration — Outdoor air can carry its own pollutants, such as pollen and dust. Be sure to choose a system with a filter.
To learn more, visit Amarillo Air Conditioning.
Our goal is to help educate our customers in Amarillo, Texas about energy and home comfort issues (specific to HVAC systems). For more information about ventilation and other HVAC topics, download our free Home Comfort Resource guide.
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