Want Great Ideas About Hvac? Look Here!
Are there times when you wonder if your air conditioner or furnace is working properly? Is it hard to keep your home at a comfortable temperature? If so, it may be time to look for a new HVAC system. This article has a great deal of useful advice about doing so.
If you want to keep your air conditioning unit running efficiently, make sure you replace or clean the air filter once a month. Check the owner's manual on the a/c for instructions on how to clean the filter. Never run the unit when the filter is removed and let the filter dry before reinstallling it.
Before you hire anyone to do any work on your HVAC, be sure to get a written estimate which has itemized costs listed on it. This will ensure that comparing one contractor to another will be simple as you can see what one offers that another doesn't, or what price they're charging for the same items.
Find a place that is shaded for your compressor. When the unit sucks in cooler air, then less work is required to cool it further which in turn boosts the units efficiency.
Look to your neighbors and family to get recommendations of good HVAC specialists. Likely there's someone you know who's already done a ton of research. Use this knowledge to help get you the best specialist you can. This can save you many hours of research time and money too.
In order to cheaply cool your home, turn the temperature up. If you take a few showers a day or just drink a cold ice water, you'll find that you're saving a lot of money on your utility bills by keeping the thermostat a little higher than usual in your home.
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.
There are sizing calculators available to determine the proper sized system for your home. If the unit is too large, it won't cool more than a smaller unit, just less efficiently. Check your manual to learn what it is rated by the manufacturer if you want accurate information.
Outer coils can be cleaned with a regular outdoor hose before you turn the unit on for the season. That said, interior coils should be taken care of by a professional so that you don't do any damage as you attempt to clean them. Bring someone in to complete a check up.
The energy efficiency of a unit should be taken into consideration when purchasing a new heating and cooling system. Although you should be concerned about the price of a unit, the efficiency of the unit will save you thousands over the lifetime of the heating and cooling system and should weigh heavily on your buying decision.
You should be sure to change the air filter of your HVAC system once every six months. Neglecting to do so can cause dust particles to clog the air ducts. In turn, your system will not work properly and you will find your bills going up. It's worth spending the time to clean the filters.
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 to look at your unit, determine the problem and give you an estimate as to how much it will cost to fix it.
Choose a good HVAC company. You need to find one that has a solid reputation. It's important that it has been around for several years and is backed by a good reputation in customer service. Find one that has trained professionals and qualified technicians to help with all kinds of customer needs. They should be able to handle any HVAC job no matter how simple or complex.
Never hire an HVAC contractor that does not hold a valid license from your state. There are people out there that will offer to do less expensive work since they have no license. While it may seem like a bargain, you will have lots of issues in the event that something goes wrong.
If you plan on having a service on your HVAC unit, ask the technician what he will be doing. Any thorough service should consist of several things. The technician should check temperature levels, pressures, amperage draw, and coolant levels. They should adjust any belts that need it and clean the coils.
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.
Think about installing a digital programmable thermostat to read more keep your heating and cooling bills low. These digital thermostats have timers that allow you to completely control your HVAC use. You can set the heat and cooling to only turn on when you are home and to turn off when you are at work.
Get bids from several companies before deciding who you are going to hire to install or repair your HVAC system. Most people know to avoid the company that has the highest quote, but you should also stay away from the one with the lowest. The price may be lower due to shoddy workmanship an/or using low-quality equipment.
If you are buying a new HVAC unit, make sure that the one you choose fits your home. Your contractor should inspect your home and your duct work before they install a new unit. If the ductwork needs replacement or repair, this should be done before the new unit is installed.
Now that you have read this article, you should be much better informed about what to look for in a new HVAC system. This is an important decision, so it is not one that you should make in a hurry. Take your time so that you can find the right system for your needs.
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.
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