Your questions answered: HVAC FAQs.

Davis Heating & Air Conditioning in Rocky Mount can answer all your HVAC-related questions. Before you get on the phone, look to see if we already responded to your question online. If you don’t see your question on the list or want more information on a topic, give us a call at 540-369-3790. Our techs can provide the information you’re looking for in a jiffy.
Like any product you want to keep in good shape, HVAC equipment requires proper care in order to deliver the maximum benefits. Trained technicians can service your heating and cooling products to make certain they’re working at their greatest potential and help prevent more pricey repairs in the middle of the hottest or coldest months of the year.
Davis Heating & Air Conditioning in Rocky Mount can price out individual units or multiple home comfort products for you. Call 540-369-3790 to find out more.
Two-stage heating permits the furnace to heat at two levels of output: high for cold winter days and low for mild ones. Around 80 percent of the time, your home’s heating requirements can be met when the furnace is kept on the low setting, allowing your two-stage unit to work for longer periods of time. Two-stage units also provide more even heat distribution, fewer temperature swings, quiet operation, better air filtration and energy efficiency.
Precise Comfort™ technology is an operating and control system used in Lennox furnaces. The technology can automatically adjust heat by increments as little as 1 percent, boosting energy efficiency and helping you experience more comfort.

Modern furnaces are developed with a host of innovative features older furnaces don’t have. Today’s heating systems give you more even heating and are better at regulating airflow. Although the air coming out of your vents may seem cooler than your old furnace, the airflow is much better and more efficient.

Another bonus of modern furnaces is their ability to integrate with other HVAC products as part of a high-efficiency whole home comfort system. When combined with a high-efficiency air conditioner, furnace blowers can more easily accommodate add-on cooling. Other innovations, such as Precise Comfort™ technology and variable speed motors, will help your furnace run more efficiently and quieter than ever.

The Department of Energy recently increased the minimum efficiency levels for air conditions, and the standards vary by region. Contact Davis Heating & Air Conditioning at 540-369-3790 to find out the requirements for the Rocky Mount area.

Lennox carries a number of HVAC products with high efficiency ratings, which can help reduce the amount of energy they require to run. Aside from selecting products that have received Energy Star® certification or achieved high SEER ratings for air conditioners or AFUE ratings for furnaces, you can think through the following:

  • Maintenance – making certain that your system receives regular maintenance by a trained technician can keep your system running at its peak performance.
  • Zoning – zoning systems enable you to only heat or cool only specific areas of your home, so you won’t have to pay to heat or cool spaces that you use infrequently.
  • Programmable thermostats – using a programmable thermostat allows you to set the temperature in your home based on your schedule. They can be programed to provide the comfort you desire when you’re home, and increase or decrease the temperature while you’re not around, helping you save on heating and cooling costs.

There are various reasons to pick Lennox, but the top three are:

  • Lennox is a name you know and trust – known throughout the world for quality HVAC products, you can rest assured Lennox will provide you with high quality equipment.
  • Innovative and high quality products – Lennox has been at the forefront of innovation in the heating and cooling industry for years. High quality furnaces, air conditioners and home comfort systems include innovative features to help your home stay more comfortable and energy efficient.
  • Reputation of excellence – high quality products are not the only arena Lennox excels in. Lennox dealers, like Davis Heating & Air Conditioning, offer high quality service at all times, from your first consultation to your routine maintenance appointments.

Strategies to improve your indoor air quality can be as basic as vacuuming your home to something as large as installing a new ventilation system. Overall, good IAQ includes four strategies:

  • Eliminate – get rid of the pollutants floating in your air by cleaning your home often, particularly vacuuming carpet, washing linens and safely storing household chemicals.
  • Ventilate – make sure your home is well-ventilated to move airborne pollutants out of your home. In newer homes, well-done insulation will hinder ventilation, so Lennox systems such as the Healthy Climate® ventilation system can help. These systems bring fresh air from outside into your home and direct the stale air out.
  • Clean – the right air filters, such as our Healthy Climate® air filters, will make certain the smallest particles don’t get through and are let out into your home. Germicidal lights can kill the germs that do make it through, and purification systems like the PureAir™ will help destroy odors and chemical vapors.
  • Monitor – keep your humidity levels in check with a programmable thermostat. High temperatures and humidity levels can raise concentrations of mold, mildew and germs. A programmable thermostat will make sure that your home is comfortable without letting humidity get out of control.
Try using our Healthy Solution Finder, where you can select the indoor air quality issues that affect your home. After you pick the items that apply, the system will show the IAQ products that fit your needs. You can also call Davis Heating & Air Conditioning and walk our techs through some of the concerns you experience. They can evaluate your home and needs and provide options and solutions.
Most homeowners believe that air conditioners make your home cooler, but it actually removes the heat from your house, sending the hot air outside. That hot air goes across a cold indoor coil where refrigerant in the lines sends the heat to the coil in your outdoor unit, releasing the heat outside. This procedure continues until the indoor temperature reaches the desired level that you set on your thermostat.
Due to the amount of energy used by heating and cooling systems, the Department of Energy (DOE) raised the minimum efficiency levels for air conditioners, heat pumps and packaged units manufactured after January 1, 2015. These levels are determined regionally and carry varying requirements based on your location. Davis Heating & Air Conditioning can answer any questions you may have regarding these minimum requirements and let you know what choices are available when you’re in the market for a replacement system.
These numbers can be found on a nameplate or sticker that is near your system’s service panel. The sticker is white with black letters and have both of these numbers located at the top of the sticker. M/N denotes model number while S/N is your serial number.
There are a couple ways to determine what size system will best suit your home, but the most reliable way to determine the right size system is by having your local Davis Heating & Air Conditioning technician come out and perform a load calculation. This calculation considers your home’s: square footage, insulation value, amount of insulation, and a number of other factors.
The short answer is “Yes,” because dirt and other debris can impede your system’s ability to work efficiently. For heat pumps, it is not unusual to have frost or ice on them during the winter, but they also are built with defrost controls to ensure they work efficiently in those kinds of weather.
Two-stage cooling means that your cooling unit has two levels of operation. When summer is its hottest, the high setting is used, and when it’s cooler or more mild, the low setting handles the duties. Usually, the lower setting will take care of your cooling needs, but even when the high setting starts up, you may not realize it because it can produce such even temperatures for your comfort. This also means a quieter cooling system, greater efficiency and enhanced humidity control.
Your system could be freezing up for a couple of reasons, but the most typical are dirty filters, low refrigerant, a dirty evaporator coil and/or a faulty blower motor. Changing a filter is something you, the homeowner, can take care of; however, you should call the professionals at Davis Heating & Air Conditioning at 540-369-3790 for other problems or if you have other questions or concerns.
Identifying the best thermostat for your cooling system comes with a lot to think through. That’s why it’s nice to have such a big variety of choices from Davis Heating & Air Conditioning. Whether you’re looking for a programmable or non-programmable thermostat or want to join the smart home trend, there are a number of thermostats that you have to choose from. Some thermostats will depend on what type of heating and cooling system you have, but the experts at Davis Heating & Air Conditioning will be able to help determine what options fit your needs and your budget.
Heat pumps can be a tad confusing due to their name, but they actually cover both your heating and cooling needs all year. When it’s hot outside it operates like an air conditioner in that it removes heat from your home, but when it cools off, the process gets switched around and it collects heat from outside and brings it inside. Heat pumps are also very efficient, and might produce up to two or three times more heat than the energy it uses.
Of course we advise you to also replace your indoor system, but this is why:
  • All outdoor cooling systems have a matching indoor unit that they are created to work with to ensure efficient performance. When they aren’t paired with the other piece as a complete system, efficiency may suffer.
  • As with many products, advancements have brought about newer, more efficient ways of doing things. Heating and cooling systems are no different. These advances most importantly include greater heating and cooling efficiency, but also include improved air handling, filtering and noise pollution reduction to name a few.
  • Heating and cooling systems that are more than 10-15 years old normally need to be replaced. Not only do they consist of outdated technology, but they are also less efficient than today’s models. Adding a new indoor unit at the same time means you’ll have a matched system to provide you with better comfort and efficiency for years to come.
The communication module on your SunSource® Home Energy System sends the system’s performance records for each module to a website. You can visit this website to view the system’s status, energy production and environmental benefits. The site also shows carbon offsets in real time.
Yes, an Internet connection is required for you to take advantage of the online monitoring system, which includes viewing energy production and environmental benefit information. The system’s performance-monitoring website is provided by an independent third party, Enphase Energy Inc., and the monitoring service is provided free of charge for five years.
In most locations, rain will clean the solar modules off automatically. If you are located in a dusty or industrial area, periodically spraying the modules with water can help improve performance. However, detergents and high-pressure hoses should never be used to rinse solar modules.
The right thermostat for you depends on your heating and cooling equipment. Davis Heating & Air Conditioning has programmable and nonprogrammable thermostats that can help improve the efficiency of your HVAC systems. View our available products or contact us at 540-369-3790 to learn more.
Heating and cooling can contribute to a significant amount of your utility bill. The innovative and high efficiency HVAC products available from Lennox® can help decrease these costs. If you’re in the market for a new heating and/or cooling system, look for products with high SEER ratings for air conditioners and AFUE ratings for furnaces. SEER and AFUE are a measure of equipment efficiency, and the higher the number, the more efficient the product. Besides purchasing a new home comfort system, consider these factors: 1. Is your system regularly maintained? Whether it’s a furnace or air conditioner, HVAC systems will opperate more efficiently after regular maintenance checks. 2. Do you need a zoning system? If there are parts of your home that are rarely used, a zoning system will allow you to heat or cool only the commonly used areas of your house. 3. Are you taking advantage of a programmable thermostat? According to the U.S. Department of Energy, programmable thermostats may reduce your heating costs by up to 35 percent, and your cooling costs by up to 25 percent.
Zoning your home allows you you the the comfort of sectioning portions of your home and control the air differently in each part of your home. Zoning tends to be best for when you have parts of your residence that are infrequently used or when you and your family are often in disagreement of the perfect temperature for the house. Zoning systems are quiet and efficient, enabling you to have more control over the comfort of your house. Discover more about the zoning equipment available from Davis Heating & Air Conditioning.