Last modified: 2020-03-12 | Approximate reading time 4 mins
As technology continues to advance, there are more advanced and environmentally-friendly ways to heat your home during those chilly months. From the wood burning stove to electric and gas heating methods, nothing is perfect. It’s a familiar struggle in winter to want to trap the heat in your home while keeping utility costs down. But, does a heating system exist that is efficient enough to keep fresh air in the home while maintaining a comforting heat level? Enter the heat recovery ventilator!
The heat recovery ventilator, also known as the HRV offers an airtight, energy-efficient solution to other heating and cooling systems. These systems offer a flow of fresh air into the home without any serious heat loss. If you’re curious about how they work and other major factors, then read on for all the important information.
Traditionally, entrepreneurs and builders didn’t spend too much time and energy considering insulation methods. Therefore, older homes have terrible insulation and some are without any insulation at all. This means that older homes lack the ability to keep heat indoors, causing high electricity bills as well as uncomfortable interior temperatures. In modern homes, insulation methods have definitely improved, and buildings have become more airtight so that their ability to hold in heat improves. Not only this, but heating systems themselves have improved in efficiency.
However, even though the combination of better insulation and better heating systems has a direct impact on the way your home is able to conserve air indoors, the home's interior still needs a regular airflow to keep the environment healthy. This is a result of many moving parts which create an excess of water and moisture inside the home, including the shower, washing dishes and clothing as well as cooking and even just breathing.
Excessive moisture leads to dust mites, mould, mildew growth and this has a serious effect on the health of all those who live inside your home. Of course, it’s possible to deal with this issue by opening windows and doors, letting new airflow into your home. Though doing this in the winter wastes an arguable amount of money. So what’s the compromise between an old, drafty home and a home that is correctly insulated but stuffy?
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We can think about our homes as we think about our bodies, needing a constant supply of fresh air to filter out toxins, moisture, and chemicals. In our bodies, the nose acts as a filter and warms the incoming air. This process is actually referred to as a heat exchange; as air leaves your nasal passages, it warms them and as cool air comes in, it adopts the heat that’s been left. This exchange allows your body to retain heat energy.
HRVs work with this same method of heat exchange. This system consists of two ventilation ducts which run next to one another both inside and outside the home. One duct moves cool, fresh air into the home while the other carries stale air outside. Between these ducts is a heat exchanger, which works to transfer heat from the stale air onto the cool, fresh air. The air itself never mixes together, and thus stays fresh and warm.
Heat recovery ventilator units vary depending on the size of the home. In smaller places, they’ll consist of a single unit that will work to heat and ventilate the entire place. For larger homes, the unit will include a ventilation grid in some or all rooms of the home that run to a single ventilator. Sound too good to be true? We’ll go over the advantages and disadvantages of these systems below.
HRVs offer a home heating and cooling system that warms the home while saving money on utility bills. Here are the major pros of this device:
As with everything in life, where there are pros, there must be cons. Here are some of the major cons of the HRV system:
If you're looking for more information on other green heating systems, check out our article on the subject.
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