FAQ

Heating & Air Conditioning FAQs

Controlled Temperatures, Inc. provides 24-hour service for homeowners and businesses. Our radio dispatched trucks are well equipped to get your system up and running. Our technicians are factory trained and are fully qualified to provide you with quick and efficient service.

How often should I change or clean my filters?

Filters should generally be replaced every month when the system is running. Replace filters with the same kind and size as original filter. If your filter is not disposable, follow the manufacturer instructions for cleaning.

What do all those rating numbers mean to me?

The federal government requires all air conditioning and heating equipment to be rated as to efficiency. The higher the rating, the more efficient the model. For cooling, the rating is SEER (Seasonal Energy Efficiency Rating); heat pump heating is HSPF (Heating Seasonal Performance Factor) and gas furnaces are rated with AFUE (Annual Fuel Utilization Efficiency). If you need further assistance with these numbers feel free to contact us.

How much will my new air conditioning system cost?

The answer is "That depends." There are many factors which must be considered: the efficiency of the equipment, the size of your home, is the duct work installed and in good condition, do you need a thermostat or electronic air cleaner. In most cases, replacing your whole system, indoor and outdoor components, will result in a more efficient, longer lasting system but will also cost a little more. Contact us for a cost estimate.

Should I cover my outdoor unit in the winter?

Covering the unit is not necessary. Air conditioners are manufactured to withstand all possible climate changes. In fact, rain helps keep your unit clean. Of course, because heat pumps run all year long, they should never be covered.

Will anything help control the humidity in my house?

Humidity is a problem in many areas. The best way to control excessive humidity is to have a system that runs longer at lower speeds. Variable speed air handling equipment runs at very low speeds, which keeps the air circulating against the cooling coil and removes much more moisture than conventional systems. At these low speeds, the variable speed motor uses much less electricity than conventional motors.

Is there any advantage to setting my thermostat fan to "ON" so the fan runs constantly?

There are a couple. One is that you get constant filtering of the air in your home. The other is that because the air is moving, you have a more even temperature throughout.

How close to the outdoor unit should I plant shrubs or flowers?

Manufacturers generally agree that plants should not be closer than 18 inches. Air conditioners need to take in and exhaust air to operate efficiently. If air cannot circulate, the unit could build up heat and require service.

I need a new outdoor unit, but my indoor unit works fine. What are the advantages of replacing my whole system at the same time?

Air conditioners are designed as matched systems, with an efficiency rating given for the whole system. If you replace only one part, you do not get the advantage of many technology changes that make the system work efficiently to ensure comfort. Also, the indoor system contains a cooling coil which may be partially blocked by particles that will decrease efficiency. Further, if your whole system is replaced, you will be less likely to need service in the near future.

What size system do I need for my home?

There are many things which will determine the size (capacity) system your home requires. Some of these are: square feet to be cooled, climate, humidity, number of windows, insulation factors, which direction your home faces, heat producing appliances, and even the number of people who will be in the home. We can do an energy analysis on your home and help you decide what your particular needs are for your lifestyle.

What is the difference in a manufacturer's limited warranty and an extended parts and labor warranty?

A limited warranty covers specific parts (i.e. compressor, coil, electronics, etc.); therefore, it is limited by the language in the warranty. Extended warranties are generally purchased in addition to the equipment. Extended warranties cover all parts and may also include the labor for the service call. An extended warranty protects you from unexpected and unbudgeted service calls for the duration of the warranty.

How often should I change or clean my filters?

Filters should generally be replaced every month when the system is running. Replace filters with the same kind and size as original filter. If your filter is not disposable, follow the manufacturer instructions for cleaning.

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