Posts Tagged ‘HVAC’

How to Help Conquer Home Humidity

Tuesday, July 3rd, 2012

By SFLCAuthor

According to ENERGY STAR®, the ideal indoor humidity level is between 30 and 50 percent. In addition to just making you uncomfortable, high humidity levels can pose a threat to your home’s structure and surfaces. Help clear the air with these tips for reducing and controlling humidity at home.

Why Home Humidity Matters

Managing indoor humidity levels can:

• Improve personal comfort.
• Control moisture that can damage your home’s wood, paint and siding.
• Prevent mildew growth and odors in clothing and belongings.
• Improve indoor air quality by reducing dust mites, mold and other allergens.
• Reduce pest infestations.
• Improve the energy efficiency of your air conditioner.

How to Help Reduce and Control Humidity

Some Southern homeowners use their air conditioners year-round to combat humidity. Theo Etzel, CEO of Conditioned Air Corporation of Naples, Inc. in Naples, Florida, has these recommendations for more effective continuous use of your cooling system:

• Set the fan to automatic. (Keeping it in the “on” position actually re-humidifies the space by blowing air over a wet coil when the condenser cycles off.)
• Invest in a unit with a variable-speed air handler.
• Consider installing a whole-house dehumidifier.
• Don’t automatically lower the thermostat. Etzel says turning down the thermostat to reduce humidity can actually be a sign of an oversized air conditioning system.

Ways to Help Cut Excess Humidity

Etzel notes that air-conditioning systems can only keep up with the moisture they’re designed to remove, whether the systems condition fresh incoming air, recirculating interior air, or both.

Here are ways to help keep additional moisture and humidity from infiltrating the home:

• Vent clothes dryers to the outdoors.
• Install vent fans in kitchens and bathrooms.
• Run a dehumidifier.
• Cover dirt floors in crawl spaces with a plastic vapor barrier.
• Seal air and duct leaks.
• Select houseplants that absorb moisture from the air, such as Boston ferns.
• Keep air-conditioning drip pans and drain lines clean and unobstructed.
• Avoid activities that add moisture to the air on humid days, such as taking hot showers and boiling water on the stove.
• Take measures outside. ENERGY STAR suggests keeping gutters and downspouts clean, extending downspouts further from the house, watering plants only when needed and sloping soil away from foundations to keep water from pooling.

The information in this article was obtained from various sources. While we believe it to be reliable and accurate, we do not warrant the accuracy or reliability of the information. These suggestions are not a complete list of every loss control measure. The information is not intended to replace manuals or instructions provided by the manufacturer or the advice of a qualified professional. We assume no liability in connection with the information nor the suggestions made.

Quick Tips to Save Money

Tuesday, June 19th, 2012

HVAC Quick Tips

Your heating and cooling system equipment runs best when properly maintained. Change your filters on a regular basis. Having your HVAC system serviced on an annual basis will ensure that your system is not costing you more than it should as well as increase the life of the system. Also, remember a dirty system means your system is working twice as hard or constantly. This then means that your energy bill will rise but your home will not be any cooler or warmer. Your air conditioner produces a lot of water while it runs. Don’t forget to have your drain lines cleared to protect your home from water damage.

Thermostat Quick Tip

The average home will spend over $1,000 a year on heating and cooling. Programmable thermostats adjust the temperature in winter and in summer as well as during unoccupied hours. At a cost of $50 – $150, the payback can be seen in well under a year.

Switch Tips

*Take a look at the lights you burn. A 100 watt lamp costs roughly a penny an hour to operate.
*When you finish cooking, turn off the kitchen lighting and the range exhaust fan.
*Don’t leave unnecessary lighting on during the day.

Unplug Tips

Check around the house to see of devices are unnecessarily plugged in. Cell phones, MP3 players, chargers and small appliances are still drawing power when not in use. Be aware the plasma TV’s and entertainment systems, DVR’s especially are drawing power even when off. Also switch computers off or use computers power management settings to allow standby mode when its not needed. A computer can use as much electricity as a refrigerator.

With just these few little tips, watch how much energy and money you can save.

Buying the Right Ceiling Fan

Wednesday, April 25th, 2012

Ceiling fans really help people reduce their heating and cooling cost. They have the ability to reduce warm temperatures up to 7 degrees, while dramatically reducing air conditioning costs. During the winter months, ceiling fans can operate in reverse mode. Doing so will circulate warm air throughout the room by pushing it up toward the ceiling. Careful consideration should be given when buying a ceiling fan, because of the wide variety available.

Fan Size

The fan should not be too large or too small for your room. A rule of thumb is to have at least 7 feet of clearance from the floor to the fan. The blades and the nearest wall should be a minimum of two feet apart.

Fan Motors

For ceiling fans to operate with efficiency, the size of the motor and the ground motor windings must coincide with blade length. This will allow the fan to run without using a lot of energy and continuously without any problems. However, when the blades or motor are not balanced correctly, the fan will begin to vibrate even at lower speeds. The motors that come with outdoor fans are built to endure temperature changes and moisture.

Fan Blades

Fan blades come in a variety of sizes and shapes. Appearance however is secondary to choosing ones that will provide the best performance and stability. You also need to decide what blade pitch you want. A higher pitch equals greater air circulation at lower speeds. Blade pitches are available between 8 and 15 degrees.

Another thing to consider is fan mounts. There are three types: flush mount, down rod mount, and tri-mount. Down rods are suited for higher ceilings, flush mount is designed for lower ceilings, and the tri-mount provides the best circulation regardless of height.

For more helpful hints check us out on www.southairinc.com

Feeling a Little Chilly?

Friday, November 18th, 2011

Your home is a haven for you and your family. You do all you can to keep it comfortable and safe. If you live in a cold climate, you know how important it is to keep your home warm during the cold months. Being unsure whether your heating system will work properly through the winter can cause serious worry for a homeowner. Hiring a professional home heating service to do a yearly check-up is a great way to catch problems and make repairs before they turn into serious problems

Heating contractors have the expertise and training to handle any size of repair, and they deal with furnace issues and ductwork on a regular basis. They will evaluate your needs and give you an estimate for the repair before they begin it. You want to contract with professionals who have the skills and abilities to detect and repair problems to your heating and air conditioning system. Because they are experienced, they have worked on many different types of units, which give them important knowledge that the average homeowner simply doesn’t have.

Reliable heating contractors work hard to provide affordable bids quickly so that you can have them do the work that gets you back to status quo. It is a good idea to locate a contractor before you have a problem so that you will know who to call if an emergency were to occur. It is a good idea to have a company come out for a basic service call so you can see how easy they are to work with and how well they do their job. This way if problems arise later you know you have someone to call that you can trust and knows your system. If you try to fix a problem with your heating or air conditioning system on your own, you could actually make it worse and cause your home to be without heat for a longer period of time.

Choosing professional heating contractors will keep this from happening. Be sure when you call for your emergency that you accurately describe the problem with your system so that your heating contractors will have a better idea of where to start. This may reduce the total time they must spend and can save you money, since they get paid by the hour.

Furnace Repair or Replace? A question from Marietta

Monday, November 14th, 2011

When the heater starts to malfunction, many homeowners debate whether they should call for furnace repair or buy an upgraded system. There are pros and cons to each choice and every individual will have to do some research and thinking to decide for himself or herself. Reparation can be the ecologically sound thing to do — or not. Many appliances are designed to go kaput at a certain age and to be hauled away to the dump.

Purchasing a new system can be good for the planet due to increased energy efficiency. If a system is so old that it guzzles energy like a hungry monster, this will make a large carbon footprint on the earth. Using a minimum of energy will be best for the planet and best for a consumer’s wallet. Here are some things to think about:

- Maintenance: An ounce of preventative maintenance is worth a pound of repair. Want to keep that HVAC working seamlessly for many years to come? Then perform regular maintenance and servicing. Replace the filter every month like clockwork.

On a specific date, such as the first of each month or every full moon, take out the old dusty one and discard it. Slip the new one into place, you have just extended the life of your furnace. Having a service technician come in at the beginning of every season to perform service will be a wise step, too.

- How old is your heater? Ancient furnace systems that clunk, clank and guzzle may be hopelessly outdated. When this old dinosaur breaks down, it may be wise to give it a decent burial. If it’s only a few years old, however, it would be wiser to call the repair person out to fix it.

- Energy star products: The government has given the “energy star” label to a variety of green products that are proven to cut energy consumption by 10 to 15%. The average family spends a couple thousand dollars to heat their home each winter and this savings can accumulate quickly. Not only will the utility bills be lower, but the government offers tax breaks to homeowners who install energy star products.

- Your repair person: It’s smart to establish a relationship with a tech before a breakdown occurs. Having an annual seasonal service performed will be the perfect opportunity to get this business relationship cemented.

When the heater goes kaput, it may be wise to call for furnace repair or might just be a wakeup call to purchase a new system. Doing a bit of homework and comparison shopping will provide answers for making an informed decision. Always choose a licensed professional.

Old Equipment You Really Shouldn’t Keep

Monday, July 25th, 2011

When you move into an existing home, there are many pieces of equipment that you may not want to keep. Some of them are just old and poor quality, while others cost you a lot of money and others still may be dangerous to you or your children. Before you settle into your space, make sure you have every one of your systems checked thoroughly for potential problems including inefficient heating, dangerous parts or environmentally unfriendly components.

Energy Cost

Number one on your list should be the cost of the energy needed to run your HVAC equipment. Furnaces and air conditioners in particular have become much more energy efficient in the last 10 years so older systems routinely cost much more money to operate than new ones. That doesn’t mean you should immediately rush out to replace your old furnace, but if it isn’t working properly or it’s costing you more money than you’d like, the cost benefit of a new system is often worth checking into.

Other things to check include your insulation, your air quality system, your ventilation system and anything used to heat or cool food in the kitchen – all of which may be less efficient than you might like.

Ozone Depleting Refrigerants

Older appliances like air conditioners may still use ozone depleting refrigerants that are no longer considered safe (or in some cases legal) for home use. If this is the case, not only does your system probably have a very low SEER rating, it likely isn’t good for the environment or your own health. So, have your system replaced as soon as possible to avoid potentially negative side effects.

Dangerous Equipment

Finally, there are those pieces of equipment that are dangerous. If you find that your furnace has rust around the edges, your gas lines are kinked, or you have a dangerously out of date heat pump in your backyard, it may be time for some replacements. In general, these systems will last for years longer than they are considered safe and while you probably cannot buy a house without a working and safe furnace and air conditioner, you should still have them inspected carefully and replaced as soon as possible if you suspect problems.

Good HVAC equipment is hard to come by – if your home has it already, you’re in luck, but if you happen to move into a place with poor quality materials and equipment, have it replaced as soon as possible. Your health and wallet will both benefit greatly.

What Is a Load Calculation and Why Is It Important?

Wednesday, July 6th, 2011

An integral part of designing and installing a heating, ventilation and cooling (HVAC) system is the load calculation. Calculating the load of a room, home, or building essentially consists of determining how much heat is lost and gained within that area. A proper load calculation is critical to installing an appropriate HVAC system, as well as ensuring maximum efficiency or diagnosing problem areas of an existing system.

The Load Calculation Process

When conducting a load calculation for your home or office, a professional will consider several factors that can affect heat loss and gain. First among these is the construction of the building. This includes not only cubic footage, but also the type of material making up the walls, ceiling and floor, as well as any duct work. A professional performing a load calculation will examine the entire building envelope, including whether the walls are wood or masonry, if there are cathedral ceilings, what type of insulation is installed, and so on.

Secondly, load calculation takes into account doors and windows, as these can affect heat gain and loss. The number of doors and windows, as well as the size, shape and material of each one is included in the load calculation. This includes skylights and sliding glass doors, as well as the type of material shading any windows. A professional will look at pane thickness, number of panes in each window, if there are storm windows installed, any drafts in door installations, and even what kind of drapes are on the windows in order to accurately calculate load.

Additional Factors

There are other factors a professional must take into account, including appliances and occupants. Heavy appliances tend to give off heat, as does having a lot of people in a space, so these must be considered in order for an HVAC system to properly regulate temperature and airflow. Last but not least, of course, is the matter of desired temperature change. By how much do you want to raise and lower the temperature of your home or office?

Calculating load prior to installing a new HVAC system is a vital part of the process. It is also a good idea to perform a calculation with current systems, as it may reveal already existing inefficiencies or deficiencies. An inefficient HVAC system not only results in unsatisfactory heating and cooling, but also unnecessary cost due to wasted energy. As you can see load calculation is an elaborate and complex process, but it is necessary for a properly functioning HVAC system.