Heat Recovery Ventilators (HRV)


Heat Recovery Ventilator Operational Diagram

Heat Recovery Ventilator Operational Diagram

Heat Recovery Ventilators (HRV) are becoming a necessity with newly built and tightly insulated homes. Drafty older homes exchanged air with the outside, so you continually had an influx of fresh air, and removal of old air just by way of the cracks and gaps in walls, ceilings, floors, and foundations. Today, the construction methods allow for a draft free and well insulated home, saving you money on energy bills, but at the price of breathing stale indoor air. Opening a window or door helps, but will not allow you to control the temperature, or humidity of the incoming air, and you are also depending on a constant cross breeze of wind to move the air through. A Heat Recovery Ventilator changes that, and allows you to enjoy the benefits of fresh air, without the drafts experienced in older model buildings, or the uncontrollable air flow of an open window.

A Heat Recovery Ventilator works by taking the air from the outside, while at the same time, taking in air from your HVAC duct work. The air is filtered, and passed through a heat exchanger, where the heated air (or cooled air) from inside your home preheats (or precools) the fresh air from outside. The heat exchanger or “core” is inside an insulated housing, along with ultra quiet fans to move the air. This method ensures a fresh air environment in your home or office with that fresh air heated or cooled so that your comfort level is never reduced. The additional benefit to the HRV is that it puts positive air pressure inside your house. Positive air pressure inside your home helps reduce drafts and dust penetration, ensuring that you have control over the inside air of your home. Heat Recovery Ventilators can be operated during the time your system is calling for heating or air conditioning, or it can be set up to operate continuously, so you have a constant turn over of the air and positive air pressure in your home.

An Energy Recovery Ventilator (ERV) is a unit very similar to a Heat Recovery Ventilator (HRV), except it has the additional step of removing excessive humidity from the fresh air, before introducing the fresh air to the indoors. This process is more suited for area’s of the country where high humidity and tropical climates are prevalent. Heat Recovery Ventilators are normally the best choice for the colder and dryer northern climate.

A Heat Recovery Ventilator is one of the best choices you can make to improve your indoor air quality. The air inside your home is filled with dust, mold, spores, and other toxins, that even the best air filters have trouble with. Why just filter and keep rebreathing this old, stale and dirty air, when you could get rid of it all together. A Heat Recovery Ventilator, Installed by Comfort Solutions Air Conditioning and Heat can help improve the quality of the air you live in.

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