MECHANICAL VENTILATION
Energy Recovery Ventilation "ERV"
Heat Recovery Ventaliation "HRV"
Brings Outside Air In and
Stale Inside Air Out!
With these systems, equal quantities of air are brought into and sent out of the home. This is usually achieved using two fans—one to bring fresh air in and another to send indoor air out.
Both systems have their own purposes and, at the end of the day, there is not one right choice between ERV and HRV systems.
Choosing one depends on the climate you live in, the lifestyle and any specific needs you have, and your home. For instance, if your house gets too humid during wintertime, then an HRV may be a more suitable choice as it helps to get rid of excess humidity. If your house gets too dry instead, then an ERV may be more fitting because it helps retain humidity at a high level.
HOW MECHANICAL VENTILATION
SYSTEMS WORK
The two systems are “heat recovery” ventilation HRV and “energy recovery” ventilation ERV.
HRVs transfer heat from exhaust air to incoming air during the heating season and from incoming air to exhaust air in the air conditioning season to reduce the heating and cooling load and improve comfort.
ERVs transfer heat and moisture between the exhaust air and incoming air. ERV stands for Energy Recovery Ventilator, with ordinary name variations containing ERV air exchangers and ERV ventilation systems. An ERV presents a method of transferring new, temperature-controlled air into the house while taking out musty, poisonous air. ERVs are systems designed to be joint to the channels that are sections of the HVAC (Heating, Ventilation, and Air Conditioning) system. Using two fans, ERVs pull neat and new air into a home or office and take stale air away. An ERV permits fresh air to a building while keeping preconditioned heating or cooling.
Ductless Single Room ERV
This decentralized HRV works on an ingenious principle. It has only one pipe to the outside, alternating between bringing in the fresh air and sending stale air through the tube. First, it brings in fresh air for a while, and then the fan switches direction and sends out the exhaust air. By switching direction periodically, each unit serves as an independent air supply and exhaust.
LET ME EXPLAIN!
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What is Mold?Molds produce tiny spores to reproduce. Mold spores waft through the indoor and outdoor air continually. When mold spores land on a damp spot indoors, they may begin growing and digesting whatever they are growing on in order to survive. There are molds that can grow on wood, paper, carpet, and foods. When excessive moisture or water accumulates indoors, mold growth will often occur, particularly if the moisture problem remains undiscovered or un-addressed. There is no practical way to eliminate all mold and mold spores in the indoor environment; the way to control indoor mold growth is to control moisture.
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What is Black Mold?'Black' mold is an umbrella term of not one mold type, but multiple species of mold. The mold's commonly referred to as 'black toxic' mold are mold species of stachybotrys, chaetomium, aspergillus, penicillium, and fusarium.
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How do Molds Affect People?Molds produce allergens (substances that can cause allergic reactions), irritants, and in some cases, potentially toxic substances (mycotoxins). Inhaling or touching mold or mold spores may cause allergic reactions in sensitive individuals. Allergic responses include hay fever-type symptoms, such as sneezing, runny nose, red eyes, and skin rash (dermatitis).
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NO! to BleachUsing bleach in an attempt to remove mold on a porous surface like wood or drywall can have very negative effects. While it may seem you’re cleaning up the mold, you’re actually just removing the visible part you can see – the root of the mold is still there. I like to use the analogy of pulling weeds. If you just pull the top of a weed off and don’t dig out its root, we both know that weed is just going to grow back in a couple of days. Bleach cannot get to the root of the mold on a porous surface. So while the surface may appear free of mold after using bleach on it, the root of the mold will still be present and growing.
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How can I control Mold?It is important to dry water damaged areas prevent mold growth. Fix leaky plumbing or other sources of water. Remediate mold and consider mechanical ventilation and dehumification solutions to mitigate moisture. Absorbent materials such as drywall. ceiling tiles and carpet that become moldy may have to be replaced.
