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Make Better Choices Thanks To This HVAC Advice




HVAC, or heating, ventilation and air conditioning, is how your home stays warm in the winter and cool in the summer. When properly installed and maintained, you and your family get to enjoy reasonable indoor temperatures all year long. Keep reading this article for advice on installation, upgrades, maintenance and repairs of your home HVAC system.

If you do have a good experience with a HVAC product or contractor, let others know. Go online and post a review so that people can easily find out who and what brands to trust. At the same time, you can check reviews online to learn more yourself about what's available.

If you want to know more about efficiently heating or cooling your home, go online and download the ENERGY STAR Guide. It provides information for homeowners to learn more about how they can save money while still keeping their home comfortable all year round, so it is a worthy ready.

When you are no longer using your outdoor air conditioning unit, be sure to protect it with a tight cover. This will keep it free of debris, frost and snow so that you'll have a working unit when the spring comes and you are ready to uncover it and use it again.

Clean your fan and coils when the weather begins to warm. Shut off power before working or cleaning your system. Also, be sure to clear leaves and debris from your condenser unit.

Turn off your outdoor condenser when it's getting cold. The unit will become damaged if you do not take care of it. This helps your system remain in good working order.

Don't let your home get way too hot to where it's dangerous. Air conditioners can cool a home by just twenty degrees in a short time. This means that if the weather is above 100 degrees, then you'll still be baking in 80 degree weather at first! This can still be way too warm for you.

Manage the heat flow into your home with window coverings to help out your HVAC system. In the warmer months, use drapes, curtains and blinds to block out sunward facing windows to keep heat from building up through the greenhouse effect. Alternatively, make sure that sunlit windows are letting light and warmth in during the colder months.

If you are a home owner, replace whatever single pane windows you have with more efficient double-paned versions. Having a double pane window helps limit your need for air conditioning during the summer months. Likewise, heat is better retained during the winter.

Check reviews online to find professional help. There are many sites that other customers can place their reviews. This is useful for finding people that you wish to work with and those that you don't.

When water condenses on your air conditioner, it drips into a pan and drains out. This drain should be inspected on a regular basis. If algae forms in the drain line or if the drain line freezes, you could be in for some expensive repairs. The drip pan could overflow causing extensive damage to your ceilings.

Get an estimate before agreeing to have any work done on your HVAC unit. This will help keep you from being surprised by a bill at the end. Any reputable technician should be able emergency plumbing to look at your unit, determine the problem and give you an estimate as to how much it will cost to fix it.

If the HVAC unit makes a clicking noise, look immediately to see if there is an obstruction. Most of the time such a noise is created by an object striking the blades of the fan in the system. Simply clear away the debris or remove any foreign objects and your problem is solved. Before you call a technician, look at it yourself.

Do you need a new HVAC system? There are a number of things to think about first. Systems have ratings according to the total area they effectively heat or cool. You should buy a little bigger than necessary unit over a little smaller than necessary unit.

You should focus on finding an HVAC contractor that can offer you a warranty on the work they are doing. This is a sign that they are confident in their ability to get the job done well. This will protect you in the event that is not done right and needs to be fixed.

While price should be one of the considerations you make when you are hiring an HVAC contractor, do not allow it to cloud your judgement. There are other factors that need to be considered in order to make a sound decision. Experience level, work ethic and positive reviews are a few things that should be considered as well.

You should focus on finding an HVAC contractor that can offer you a warranty on the work they are doing. This is a sign that they are confident in their ability to get the job done well. This will protect you in the event that is not done right and needs to be fixed.

The biggest step to preventing problems in your air conditioner is getting a professional tune-up once a year. This is especially important before the summer. This is when your air conditioning system will be working its hardest. Getting regular tune-ups reduces the risk of malfunctions and will keep you cool all summer long.

Check the licensing of any HVAC company that you plan to hire. Start by making sure they are fully licensed. They should be in compliance with your state's business laws. Good HVAC companies should be fully insured. This is to protect their company, their employees, and their customers should anything happen when they are performing a service at the home of a customer.

As stated in the above article, it is very important to you and your home to have a properly running HVAC system. Without it functioning right, it can lead to a very expensive fix and a big headache for you. Don't let this happen to you! Use the tips here to make sure your HVAC system lasts as long as you own your home.

Can the AC filter in your home, office or local mall protect you from Covid-19?


When New York Governor Andrew Cuomo announced last week that malls in New York could not reopen until they installed high-efficiency particulate air filters capable of trapping the virus that causes Covid-19, Harvard environmental health researcher Joseph Gardner Allen was thrilled.



"I've been writing consistently since early February about how healthy buildings should be the first line of defense against the novel coronavirus," said Allen, who directs the Healthy Buildings program at the Harvard T.H. Chan School of Public Health.



"I'm really grateful that we have a leader in the country -- somewhere -- who was finally talking about healthy buildings, ventilation and filtration," Allen said. "That hasn't happened before. It just hasn't happened."



A push to action



Allen was one of 239 scientists who wrote an open letter to the World Health Organization, the US Centers for Disease Control and Prevention and other health agencies, asking for a change in their guidance to the public on how the novel coronavirus, or SARS-CoV-2, can spread.



Current guidance only focuses on "hand washing, maintaining social distancing, and droplet precautions," according to the letter, published Monday in the journal Clinical Infectious Diseases.



The health agencies are ignoring the tiny droplets of virus that sputter and spray from our mouths, become aerosolized and then float away into the air, the scientists said, as a likely means of transmission.



"They don't want to talk about airborne transmission because that is going to make people afraid," co-author Donald Milton, a professor of environmental health at the University of Maryland, told CNN in a prior interview.



"The best vaccine against fear is knowledge and empowering people to take care of themselves," Milton said. "Why wearing a mask is important is because it blocks the aerosols at their source, when it is easy to block them."



MERV ratings



In his edict to New York mall owners, Cuomo was talking about HEPA filters, which have the highest MERV ratings, between 17 and 20.



What's MERV? It stands for "minimum efficiency reporting value," and it's how filters are rated in their ability to trap tiny particles. The MERV ratings go from one to 20: Filters with higher MERV ratings are more effective than filters with lower ratings.



At the highest end, HEPA filters are used by hospitals to create sterile rooms for surgeries and to control infectious diseases, and are able to remove 99.97% of dust, pollen, mold, bacteria and other airborne particles with a size as small as 0.3 microns. For comparison, Covid-19 is thought to be between 0.06 to 1.4 microns.



"Filters are rated at their worst performance, so 99.97% is the worst it will do," Allen said. "And that's rated for a particle size of 0.3 microns, but smaller and larger it actually does better. So the point is that it's capturing nearly all particles."



Unfortunately, most businesses and home owners may find it difficult to retrofit their existing system to accommodate a HEPA filter, or any filter higher than the rating recommended by the system's manufacturer.



Doing so can actually impair the system's performance: Smaller pores in HEPA air filters make it more difficult for it to push air. Using denser filters can affect the efficiency of the unit and strain the fan, while decreasing indoor air quality -- the opposite of what you desire.



"HEPA filtration is not always going to be feasible or practical," Allen said. "But there are other filters that can do the job. What is recommended now by the standard setting body for HVAC is a MERV 13 filter."



High-efficiency filters in the 13-to-16 MERV range are often used in hospitals, nursing homes, research labs and other places where filtration is important.








https://docs.google.com/presentation/d/1lsY92_nmCH1u72gjMYI4ZChOCJLeKAXLe9ieG5qDeR4/edit?usp=sharing

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