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Heat Pumps & Air Conditioning

Daniel Molina - Wednesday, April 22, 2015

Heating & Air Conditioning

Heat Pump | Heating and Air Conditioning

Heat pump systems are energy efficient HVAC systems that provide heating and air conditioning in one system. The following information will assist you in deciding which heat pump features are right for your Texas home.

Two-Stage Heat Pumps

The compressor and air handler of typical air-source heat pumps are fixed-stage components that operate at full capacity all the time. When a conventional heat pump runs, it does so at 100 percent capacity, and then cycles off. This process is inefficient compared to two-speed heat pumps.

In addition to full capacity, two-speed heat pumps utilize a compressor and air handler that offer a second lower speed. Two-stage systems are more efficient and provide greater comfort than conventional all-or-nothing heat pumps by providing the heating and air conditioning you need when you need it.

Variable-Speed Heat Pumps

For maximum efficiency and comfort, select a heat pump that utilizes a variable speed air handler and scroll compressor. Scroll compressors are able to maintain thermostat temperature settings to within less than one degree, produce substantially less noise. Scroll compressors have the reputation of reliability and extreme longevity.

Heat Pump Water Heater

Air-source heat pumps use refrigeration principles to extract, move and release heat energy between the air outside and inside the home. In "cool" mode, wasted heat energy that is normally discharged outside the home can be used to inexpensively heat water in a conventional water heater system by using an add-on heat exchanger called a desuperheater.

Heat Pump Replacement

Age is a common factor in the decision to replace a heat pump. The average heat pump's lifespan is from 10 to 15 years, though some systems have lasted much longer. However, the costs of maintaining a heat pump (or any other type of heating and air conditioning system), increases with age.

Energy efficiency is also another factor to consider when planning replacing the existing heat pump. Newer modern heat pumps are far more energy-efficient than older models, even those just a few years old will be less efficient than its modern equivalent and can save you up to 40% on the energy bill. An Energy Star labeled heat pump will provide even greater reliability and energy efficiency.

Improvements in HVAC Tech

The heating and air conditioning industry continue to advance heat pump technology, often resulting in increased energy efficiency. High-efficiency compressors, efficient refrigerants and variable –speed blower motors are some of the more recent developments driving energy efficiency and improved indoor comfort. These advances enhance heat pump operation, reducing wear and tear and assisting in extending the unit's lifespan when provided routine annual maintenance.

Humidity is one factor that can affect how comfortable a home is. This is why a failing air conditioning system will often cause increased humidity in the home. Today's high efficiency heat pumps are exceedingly effective in reducing humidity thanks to multistage compressors and variable speed blower fans.

An additional feature of today's heat pump is its tolerance of lower outdoor temperatures. In older models, the heat pump became inefficient in deep cold winter days and nights, and homes would rely on auxiliary heat or inefficient strip heat to warm the home. Today's heat pumps tolerate colder weather better than older heat pumps. It's still recommended that you have auxiliary heat, but is less likely to be needed by a new system than an older one.

Finally, the technology of programmable thermostats was not available for heat pumps until now. With programmable thermostats being capable of reducing the energy costs of heating and air conditioning by as much as 20%, heat pump owners understandably wanted the benefits and advantages of the technology for their homes. Now you can have the best of both worlds, a high efficiency heat pump controlled by a programmable thermostat.

The advantages of a high efficiency heat pump are waiting for you, call today and we will provide you with a free estimate for a new heat pump installation by Garland Heating and Air Conditioning where your satisfaction is always guaranteed. We serve Dallas, Plano and the surrounding areas with superior heating and air conditioning services. Garland Heating and Air Conditioning is a member of the BBB with an A+ rating.

Ceiling Fans & Air Conditioning Dallas, TX

Daniel Molina - Monday, April 20, 2015

Air Conditioning Dallas TExas

Ceiling Fans | Air Conditioning Dallas, TX

Through the wind chill effect, ceiling fans enable you to feel cooler, and turn the thermostat up on the air conditioning system, providing an inexpensive means of supplementing the home's air conditioning in Dallas, TX.

Ceiling fans produce a breeze that evaporates moisture away from the skin, causing you to feel cooler. By using a ceiling fan the AC thermostat can typically be lowered by 4-7 degrees, reducing the cost of operating the home's air conditioning in Dallas, TX.

Select the correct size fan for the greatest comfort. The factors to consider when buying a ceiling fan include:

Ceiling fans range from 24 to 84 inches wide. Select the largest fan that can be installed in the room and still maintain at least 18 inches between the fan and walls, cabinets, doors or other objects. A larger fan set on a lower speed will move a greater amount of air than a modest sized fan at high speed. Generally, a 52 to 60 inch-diameter fan will be sufficient for a 250-300 square ft. room. Rooms larger than 300 sq. ft. will require a 62-84 inch blade span.

  • Select a fan with a larger blade pitch to achieve maximum air movement.
  • The minimum distance between the fan blades and the ceiling should be 8-10 inches. Setting the fan lower when possible, will create a higher air flow.
  • A ceiling fan that weighs over 35 pounds will require additional support. The ceiling fan must be mounted between two ceiling joists with a bracket. It is essential that the outlet box be rated for a ceiling fan, and to support the fan's weight.
  • Careful location of the fan will enhance the occupants comfort. In square rooms the fan should be mounted in the center of the ceiling. Rectangular rooms typically require two fans evenly spaced.
  • Rooms with ceilings 8 feet or higher are best suited for a ceiling fan. Ceilings lower than this present a safety risk and require the installation of flush mount ceiling fans. However, taller persons can strike the light kit if not the blades.
  • Select a fan with a reverse blade function, also called a direction switch.

The fan directional switch should be set according to the season. In the summer the fan should force the air up, with the blades turning counterclockwise, while in winter the fan needs to force the warm air down, with the blades turning clockwise. The directional switch is a slide switch located on the fans motor housing. Allow the blades to come to a complete stop before reversing the direction.

A ceiling fan can assist with even distribution of heated air in the winter by circulating the air. The adage that hot air rises and cold air falls is true. A ceiling fan circulating on its winter function (clockwise) in the low mode will circulate the warm air down where it will benefit the room's occupants. In the summer mode (counterclockwise) it provides a breeze that will assist in keeping you cool. This will allow you to raise the thermostat of your air conditioning in Dallas, TX.

Using Other Fans

In order to pull cooler outdoor air through a window, a box fan or attic fan will be required. A typical box fan will only cool the room of its location, while an attic fan will pull hot air out of the house, and cooler air in through open windows or doors, allowing you to shut off your air conditioning in Dallas, TX when cooler outdoor temperatures can be taken advantage of.

Ceiling fans are also useful when the air conditioning breaks down. If you haven't had your air conditioning in Dallas, TX maintenance and tuned-up for the summer, contact us today to schedule an appointment. Whether you need maintenance, ac repair in Dallas or air conditioning installation, Garland Heating and Air Conditioning's certified and experienced HVAC experts can provide for all of your air conditioning in Dallas, TX needs.

Upgrade With a New Air Conditioning Installation

Daniel Molina - Friday, April 17, 2015

Air Conditioning Installation

Replacing AC |Air Conditioning Installation

Eventually, any home's central air conditioner will need to be replaced. As time goes on it will require an increased number of repairs, and will perform poorly and inefficiently. These are all indicators that it may be time to consider replacing the AC with an energy efficient air conditioning installation.

Upgrading the Existing A/C

Upgrading with an energy efficient air conditioning installation offers a number of benefits with increased comfort, reliability and saves on the cost of energy. To ensure the maximum benefits, hire a qualified, licensed HVAC contractor to size and install the air conditioning. Proper installation is essential to performance and the lifespan of the system. The following signs can indicate that it is time to replace a central air conditioner:

  • It is greater than 10 years old.
  • The cost of keeping your home comfortable continually rises.
  • A variance exists in the temperatures between rooms.
  • It needs frequent repairs.
  • The cost of repairs (including the past two years cost of repair) are half or more of what it would cost to replace the system.
  • You want to upgrade to an energy efficient air conditioner.

Types of Central A/C

When replacing the existing central air conditioning, you will need to decide the type of system to install. There are two basic types to select from.

  • A split system AC consists of both an indoor and an outdoor component. The condenser and compressor are located in the outdoor component, while the evaporator coil is kept in a cabinet inside the home. The indoor component can also include an electric or gas furnace or heat pump. A ductless mini-split system is similar to a basic split system in that it has an outdoor compressor and condenser, and an indoor air handling unit.
  • A packaged system contains all of the components in a single outdoor unit. A packaged system is ideal for homes that lack the indoor space for multiple components. In addition to an air conditioner, a number of packaged systems also contain an electric or gas heating. A heat pump is an additional example of a packaged system.

When replacing an aged split system, the evaporator coil should be replaced with a coil matching the new condensing unit. This is necessary to achieve the efficiency potential of the energy efficient condenser. In fact, using the existing coil, even it would match the replacement system can result in failure of the compressor.

The modern technology in today's air conditioners can save approximately 20% to 40% in air conditioning energy costs by replacing it with a modern, energy efficient model.

Proper sizing and installation are essential in providing proper operation with the maximum energy efficiency. An oversized unit will not adequately remove humidity causing discomfort. While an undersized unit will not be able to maintain a comfortable temperature on the hottest days, and will experience premature wear from continuous operation. Improper unit location, lack of insulation, and improper duct installation, or ducts in need of repair can also diminish efficiency.

A Garland Heating and Air Conditioning professional is the best source for additional information on replacing the AC. Our highly trained, and reliable technicians provide superior AC repair, maintenance and air conditioning installation for your home or business in Dallas, Plano and the surrounding areas. When you need air conditioning installation contact us for a free estimate. Our experienced technicians provide 24 hour emergency services for your convenience, and are a member of the BBB with an A+ rating.