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The most generally known efficiency rating is Seasonal Energy Efficiency Rating (SEER). SEER 13 is the minimum efficiency you should consider, but higher efficiencies are likely to be cost effective. Some central air systems have SEERs of 16. In hot, dry climates you should look at the Energy Efficiency Rating (EER), which denotes how well the system will work at peak conditions. Also look for Energy Star-rated systems for the best energy efficiency.

Now that you understand exactly what an HVAC system consists of, you’re probably wondering how long a new one will last you. This really depends on the equipment to know how long the system will last. But, if you keep up with your recommended annual maintenance your equipment will last you for years and years to come. Are you looking to replace your existing HVAC system? Or maybe you’re looking to add one altogether? Call your local heating and air conditioning professionals at Brennan Heating & Air Conditioning!

In order to provide indoor comfort and acceptable indoor air quality, the main functions of an HVAC system all interconnect. Heating and air conditioning systems can be one of the most complicated and complex systems in your house. However, you will notice when it stops functioning soon enough. You should be familiarized with nine parts of your HVAC system. These include the air return filter, exhaust outlets (ducts), ducts and electrical elements, outdoor unit as well as the compressor, coils or blower.

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Exhaust outlets are another part of your heating system. They allow for the expulsion of the exhaust from the heating system. Pro tip! Check your chimney flue annually and tune up if necessary.

Failure to replace these filters as needed will contribute to a lower heat exchange rate, resulting in wasted energy, shortened equipment life, and higher energy bills; low air flow can result in iced-over evaporator coils, which can completely stop airflow. Additionally, very dirty or plugged filters can cause overheating during a heating cycle, which can result in damage to the system or even fire.

Room pressure can be either positive or negative with respect to outside the room. Positive pressure occurs when there is more air being supplied than exhausted, and is common to reduce the infiltration of outside contaminants.

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Heating, ventilation, & air conditioning are interrelated.

Today's top air conditioners require 30 percent to half the energy required to produce the same cooling power as units made in mid-1970s. Even if the air conditioner is just 10 years old you could save 20-40% on cooling energy costs if it was replaced with a newer, more efficient unit.

It is possible to eliminate radiators that are too hot. Modulating aquastats are used to regulate hot water boilers. They can adjust the temperature of hot water to outside temps, which can help save up to 10 percent on fuel costs. Hot water can circulate through the system by using a time delay relay. A barometric damper can be added to an oil-fired system. This prevents too much heat going up a chimney. For more information on retrofit options for oil and gas systems, visit the Department of Energy.

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Furnace Repair Durham

Furnace Repair Durham

The blower draws warm, humid air through the main portion of the unit. Pro tip: Your system will last longer if it moves efficiently.

Evaporative coolers are used in non-humid regions like the southwest. These cool outdoor air through the passing of it over water-saturated pad, causing it to evaporate. The cooler air is then pushed into your home through the windows. For cooling certain spaces, you can use room air conditioners which fit into windows or can install in walls.

The three main functions of an HVAC system are interrelated, especially when providing acceptable indoor air quality and thermal comfort. Your heating and air conditioning system is often one of the most complicated and extensive systems in your home, but when it stops working you’ll know soon enough! There are nine parts to your HVAC system that you should be familiar with the air return, filter, exhaust outlets, ducts, electrical elements, outdoor unit, compressor, coils and blower.

Air Conditioner Repair Wilson NC

AC Repair Durham

Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality.

Most commonly, an air handler works in conjunction with a heatpump to circulate cool air throughout your house. A furnace or conventional air conditioner will work fine without an air handler. They have all the necessary internal components to circulate air.

If you have an old, inefficient burner on an oil boiler, though, you may want to replace the whole burner. A flame retention burner will block airflow up the chimney when the unit isn't running, saving up to 20 percent on fuel costs at a cost of about $500, says the DOE.

HVAC Contractors Durham
HVAC Contractors Durham

With these systems you can automatically control the humidity levels in a home as you heat and cool, though this is not available through forced-water heating systems that use boilers. With humidity/dehumidification systems built into your furnace or air conditioning, you cannot control the humidity levels when the system is not on. If desired, you can add separate humidity/dehumification systems that do this.

HVAC is short for heating and ventilation.

Photovoltaic solar panels offer a new way to potentially decrease the operating cost of air conditioning. Traditional air conditioners run using alternating current, and hence, any direct-current solar power needs to be inverted to be compatible with these units. New variable-speed DC-motor units allow solar power to more easily run them since this conversion is unnecessary, and since the motors are tolerant of voltage fluctuations associated with variance in supplied solar power (e.g., due to cloud cover).

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A vent damper is a device that prevents air from escaping a chimney in gas- or oil-fired furnaces and boilers. In older systems, intermittent ignition devices shut off the pilot lights when they are not in use. A reduction in the size of an oil-fired gas burner orifice, or nozzle, or the baffles, in a gas-fired gas-fired system can reduce or degrade the system.

FURNACEAll furnaces consist of four main components: 1) burners that deliver and burn fuel, 2) heat exchangers, 3) a blower and 4) a flue that acts as an exhaust for gaseous by-products. A furnace generates heat by burning fuel and distributes the generated heat throughout the house.

*Department of Energy. ** Based on Energy Star’s Savings Calculator. The 3-ton 21 SEER/10 HPF heat pump and programmable thermometer are compared to the industry standard 13SEER/7.7 HPF 3-ton heat pumps and thermostats in St. Louis, MO.

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