http://www.youtube.com/watch?v=O54ZebfQixo
When you are looking to buy a new air conditioner, consider your climate. If you live in a hot, dry area, then an evaporative cooler will be your best bet. If you live in a humid area, opt for a compressor-style unit as it's the only one which will work.
If your home gets hot in the summer and you'd like to use your air conditioner less often, consider a metal roof. It reflects the heat right back up into the sky, allowing your home to gain less heat on sunny days. Since metal roofs are permanent, you'll save on repair and replacement costs also.
Make sure you wipe up any water that is close to the air intake of the vents of your HVAC system. Clean up any water that is standing around because water can cause mold to easily expand. Some water buildup is normal but if you're picking up water more than once every six months you might have a problem, so contact a HVAC technician.
If you are purchasing an AC unit, take measurements. You need to know how big the area is that you want to have cooled off. You can usually substitute 20 BTU for each square foot in the area to be cooled. Account for all of the rooms in the house.
If you are going to use the Internet as a source for good HVAC contractors, you need to be very careful. You never know who is behind the glowing reviews that are posted all over the Web. There is a chance that the contractor is posting their own reviews or paying others to do so.
A great way to reduce the stress on your HVAC unit is to install ceiling fans in your home. During the summer, you can have them blow downward to cool the air and make your home feel more comfortable. In the winter you can reverse the direction and circulate warm air trapped at the ceiling.
If you already have someone servicing your HVAC unit every year, consider talking to them about installing a new system. Even if you need something custom built, they may have staff on hand who can do what you need. If you already trust them, you know they'll be right for the job.
Follow through on the references provided by the contractor. Too many people just assume these contactors are legitimate becuase they offered these references freely, but if you don't actually check them out, there could be serious consequences. It doesn't take long to check out someone's references, so do it.
You don't want to have a faulty HVAC system because that will make any homeowner miserable. Having a home that is too hot or cold is enough to drive anyone crazy. Then having to pay the costs to fix this problem makes it even worse. Don't let this happen, remember the tips here to ensure your HVAC system stays working right.
