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You should inspect your air filter monthly and change it if necessary. A good time to inspect your filter is when you receive your electric bill. The motto we use is: To minimize your payment to your electric company, check/replace your air filter before writing a check to the electric company. Failing to change your filter regularly will result in higher utility bills, inadequate system cooling/heating, damage to your system, and many other problems. CHECK YOUR FILTER MONTHLY!
Twice a year. You should have a cooling tune-up done in the spring and a heating tune-up done in the fall. Air conditioning units are like any other piece of machinery; you must have them properly maintained to maximize their performance, efficiency, and life-span. Call us at (281) 355-1500 for more information on our air conditioning and heating maintenance/tune-up program.
You should always set your thermostat to the highest possible setting that is comfortable for you in the summer, and the lowest comfortable setting in the winter. Doing this will maximize your energy savings as on average, every 1 degree of temperature change is equal to about 10% energy savings. For example, changing your thermostat setting from 75 degrees to 76 degrees in the summer could result in about a 10% savings on your cooling costs.
Yes, the Department of Energy recommends a change of no more than 3 degrees for maximum possible energy savings. These 3 degrees are critical because if you allow your home to get warmer or colder than this, it will result in your unit having to work extra hard to return your house to the proper temperature. This period of extra hard work for the unit will eliminate all the cost you saved throughout the day and will now cost you more overall. This is especially true in the summer. For example, if you were to turn your unit off while you were at work and the house temperature rose 5 degrees, when you return home and crank down the thermostat, your unit now has to work twice as hard to remove all the extra heat in the home during the hottest time of the day. This results in massive energy usage and cost.
We recommend no more than 5 degrees of change from your normal setting. More than 5 degrees of change could cause damage to the contents of the home, especially in the summer, when we are dealing with scorching temperatures. Wood floors, cabinets, pets, electronics, etc. are all items that are sensitive to significant temperature changes.
A programmable thermostat can be a great tool to maximize energy savings and is recommended by your electric company. You can program this type of thermostat with different temperature settings for the weekends, for when you are away at work, for when you go to bed, and so on. It is not a necessary item to have, but it’s a beneficial tool to help you save on energy costs. You can also look into the advantages of having a NEST thermostat.
Find a thermostat setting that is comfortable for you and leave it alone. Only adjust the setting if you are away from home for extended periods of time.
There are endless reasons why your utility bills might be high, but here are some reasons why your heating and cooling is costing you a fortune.
We do not recommend constant fan operation year-round except in December through March when humidity levels are low. Running a constant fan will keep your rooms at a more even temperature throughout the day, and will keep the indoor air better filtered when humidity levels are low.
You should never close more than one register in your home if the air conditioning system was installed by ACT. If your duct system was not installed by ACT, you should not close any registers. Closing off registers does not save energy! Find out about a temperature zoning system. If you shut off air to rooms, they still will have heat gain from the outside. This heat gain is transfers to the rest of the house through doors, walls, ceilings, etc. This heat gain will cause your unit to work just as hard as if all the registers were open. There are no energy savings to be gained from closing off registers.
Absolutely not. Never cover registers or return grills with any material what-so-ever. Doing this adds resistance to the system, causing your unit to work harder and your energy bills to rise. Your system was designed to operate with all registers fully open and unblocked.
Rooms in your home that have western exposure (walls and windows) will be warmer in the afternoon than other places due to solar gain from the sun through windows and walls. Window coverings must be drawn on in the afternoon on any west-facing windows to avoid these increased indoor temperatures. Your air conditioning system cannot adjust airflow throughout the day based on the movement of the sun. If you fail to draw window coverings, your rooms will get hot, and your energy usage will rise. It is also a good idea to install awnings over west-facing windows if possible or plant trees to shade these windows in the afternoon.
Physics. Hot air rises, cold air falls. This is why ACT recommends separate systems for upstairs and downstairs or zone controls. It is impossible to have a balanced, comfortable system in a two-story house with one unit and no zone control. Many HVAC contractors wrongly install one unit on a two-story house as a way to save money. While this does indeed save on the initial cost, it will lead to an uncomfortable home that is impossible to balance. We are only interested in happy and comfortable customers. This is why we will not install a single unit on a two-story application unless it is equipped with a temperature zoning system.
In a typical home, a bedroom is converted into a home office. The chances are that the air conditioning system was not designed to account for the added heat loads that are associated with home offices, such as computers, monitors, additional lighting, printers, copiers, scanners, TV's, etc. All of these items add a great deal of heat to your office. Since your system was not designed to account for these items, the room will always be hotter than the rest of the home. You can have an air balance done to slightly help this problem, but it will not wholly remedy it. The only solution that will completely fix the problem is to have duct modifications made and possibly a new unit installed.
An evaporative cooler uses water to soak cooler pads and then draws outside air over the pads to cool the air. This cool, moist outside air is then blown into the house to cool it. An air conditioning unit uses refrigeration inside an indoor coil to absorb heat from the air. An air conditioning system also provides dehumidification and filtration for the home while a cooler does not.
A gas heat furnace typically uses natural gas or propane to create a flame that heats metal heat exchanger plates, inside the furnace. Air from the home is then blown over these hot heat exchangers and is then returned as warm air to the house through ducts.
A heat pump runs off 100% electricity. It is simply an air conditioner running in reverse. To supply warm air, the unit reverses the normal refrigeration cycle and transfers heat from the outdoor air to the inside of the house through the refrigeration inside the system.
A gas furnace will supply slightly warmer air to the home than a heat pump.
SEER stands for Seasonal Energy Efficiency Ratio. It is an energy efficiency rating for air conditioning units. The higher the SEER rating, the more efficient a unit is. For example, older units used to have a SEER rating of 6-10, new units today must have a minimum SEER rating of 13, and the most efficient systems available today are about 19 SEER.
BTUH stands for British Thermal Unit Hours. It is a simple measurement of heat. One BTU represents the quantity of heat necessary to raise one pound of water 1 degree F. 12,000 BTU's of total capacity per ton of air conditioning (example: A four-ton air conditioning machine has a capacity of 48,000 BTU's). 8,000 BTU's of sensible cooling per ton of air conditioning (approximately).
AFUE stands for Annual Fuel Utilization Efficiency. It is an efficiency rating for gas furnaces that are recorded in percentages. This percentage represents the amount of energy input to the furnace that is converted into heat for the home. The remaining energy input is lost up the flue pipe. Gas furnaces of the past had AFUE ratings of about 60-75%. Today's furnaces have ratings of 80-95%.
HSPF stands for Heating Seasonal Performance Factor. It is a heating efficiency rating for heat pumps. The HSPF scale goes from 7.5-9.0 with 9 being the best possible rating.
I know we all love the feeling of that cool air after a storm, but this is the absolute worst time to open up your doors and windows. Doing so will introduce extremely high levels of humidity into the home. This humidity gets absorbed into carpets, draperies, bedding, clothes, etc. When you fire your air conditioning back up later, it is going to work extra hard for the next 24-48 hours to remove all the added humidity in the house. Yes, it takes that long to return your home's humidity to normal. This extra work will significantly increase your energy bills. So if you want to enjoy that cool monsoon air, go outside and have dinner on the patio, don't completely open up your house.
Your furnace smells because dust has accumulated on the heat exchanger inside the furnace. The smell is the dust being burnt off. Under normal conditions, this smell should stop coming from the furnace within 24-48 hours.
Absolutely not. You should never do this. Covering the outdoor unit will trap moisture around the unit and eventually cause it to rust.
No, never. Any covering that is close to the unit will cause the recirculation of hot air around the unit. This recirculation will significantly reduce the unit's efficiency and capacity. Most units already have a metal coil guard that shades the condenser coil from the sun. We have measured 120-degree inlet temperatures on 105 degree days on units that have been covered by the homeowner. Having any covering or object close to your outdoor unit can cause recirculation, which leads to poor system performance.
Yes. Pet hair and dander causes blockage of the filter and can also cause blockage of the indoor coil. Any obstruction in the system will lower the system's performance and efficiency.
Doggie doors create more heat gain for the home because they have no insulation. A great deal of heat and hot air infiltration can be gained through these small doors.
Large fish tanks have been seen to increase humidity in homes; therefore, making the unit run longer and harder to reduce humidity levels. This leads to increased energy consumption and higher energy bills.
At least yearly with proper filter maintenance. If you do not change your filter at regular intervals, your indoor coil could become clogged, which could then cause your condensate drain to clog and flood your mechanical room. ACT performs this cleaning during our spring tune-up.
Undersized ductwork (which is what most homes have) can significantly reduce airflow and can damage the compressor in the outdoor unit. Undersized ducts will also increase noise due to the increased air velocities inside the duct. Undersized ductwork will decrease the volume of air that can be delivered to each room, therefore reducing the comfort of the home.
Think of it this way: undersized ductwork is like a small cocktail straw. Try to blow through that straw as hard as you can and feel the amount of resistance there is. This is the same resistance a unit has to deal with when the ductwork is too small.
Undersized duct creates poor airflow. If there is not enough airflow over the indoor coil, it will ice up and could potentially flood the mechanical room and damage the home.
The refrigerant in your system should never have to be changed. Refrigerant is not like oil in a car. It only has to be replaced if it becomes contaminated from an outside source. Even if this happens, your refrigerant can often be filtered to remove contaminants.
We recommend at minimum a 1" pleated filter. Do not use 3M Filtrete or Angelhair filters. These filter types are much too restrictive and will cause damage to your system (from our experiences with them).
Washable filters are okay if they are correctly maintained. However, most people fail to maintain them properly, and this causes problems with the system. To properly clean your washable filter, you should first vacuum it entirely from the incoming airside. Once it is completely clean, flush with water in the opposite direction of airflow. If you flush the filter from the wrong direction or fail to vacuum it, you will just further embed dirt and debris into the filter. The cleaning process must be done monthly without exception.
Yes, it is a good idea to keep some extra fuses in case of storms or power surges.
Carefully read the following before changing a fuse on your own! You MUST always turn off the breaker (make sure it is the correct breaker also) before you change the fuse. If you fail to do so, you can and will suffer major injuries. There is a lot of voltage going through your unit's disconnect box. If you touch the wrong thing without having the breaker off, you will get hurt.
If you have a newer unit, you don't have to oil the motor because they are sealed bearing and can't be oiled. If your unit is older and does not have sealed bearing motors, you should oil them or have them oiled with a drop or two of oil once yearly.
2-stage cooling is a method of cooling that can better manage the cooling of your home while outdoor temperatures are changing. It can also better maximize indoor comfort and energy efficiency. 2-stage cooling systems are typically the most energy-efficient systems out there.
2-stage cooling can be done by having one unit with two compressors, one small and one large. The small one is typically capable of putting out about 50% the capacity of the larger one. The second way to have 2-stage cooling is to have a single scroll unloading compressor. This compressor can unload its capacity down to about 66% of maximum capacity. Both these methods of getting 2-stage cooling allow the unit to run at a lower stage when the high stage is not needed. By doing this, energy is saved. It is the same principle that is used in car engines that can drop out cylinders when they are not needed.
2-stage heating has the same principle as 2-stage cooling. It allows the unit to adjust itself based on the amount of heating that is necessary. 2-stage heating is a good way to save on heating costs.
A heat pump system would have two different sized compressors, a small and a large one. The compressor that is used at a given time would depend upon the need. If only a small amount of heating is necessary, the smaller compressor would be used to save energy. The large compressor would only be used when a large amount of heating was needed.
A 2-stage gas furnace has a modulating gas valve that regulates gas flow depending upon the need.
Variable speed refers to an indoor motor that changes speed. This type of motor increases speed and airflow from start-up to full capacity over 8 minutes. This results in a quieter start-up and shut down of the system. This motor is also about five times more efficient than a conventional indoor fan motor.
Air conditioning units are sized in tons. One ton is equal to 12,000 BTU's of total capacity. So, for example, a 4-ton air conditioning unit has a full capacity of 48,000 BTU's while a 2-ton machine only has a total capacity of 24,000 BTU's.