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  • The Benefits of Central Gas Heating For Businesses

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    If you are a business owner, finding an effective and affordable way to heat your business in the coming winter months is a major priority. It also poses a significant challenge for business owners who are trying to heat large spaces. If you own a store, you need to keep your patrons warm and comfortable as they shop so that they stay and browse your products, rather than retreating to the warmth of their cars as quickly as possible. Similarly, if you manage a large office space, keeping the area warm during the winter will help maintain employee morale and boost productivity throughout the workday.

    A great option for business owners looking to heat large spaces is central gas heating. By installing a gas furnace in your building, you can keep a large area warm and comfortable all winter, without breaking your business’s budget. Read on to find out more about the benefits of choosing central gas heating for your business.

    Why a Gas Furnace Is Ideal for Large Spaces

    The process through which a gas furnace generates and distributes heat makes central gas heating an ideal choice for business owners who are trying to heat large stores and workspaces. In the first step of the process, gas is burned in the furnace’s burner. It is then combusted in the heat exchanger, which generates the heat necessary to warm indoor air as it is blown in from the building’s ductwork, passing over the heat exchanger to capture the heat of combustion. In the final step, the hot air is blown into the supply ductwork of the building, which carries it to the areas that need to be warmed.

    If you are heating a large space like a store or an office, the ductwork does not have to be very complex for the warm air to get where it needs to go. Depending on the location of the furnace, warm air can be distributed into the large area shortly after being heated, making a central gas heating system extremely effective while also minimizing energy loss.

    Choosing an Energy Efficient Gas Furnace

    Some business owners worry that central gas heating systems are not as “green” as electric heating systems. However, recent advances in gas furnace technology have significantly improved their energy efficiency. Many of the gas furnaces on the market today have an AFUE rating of 95% or even higher.That means that they use much less energy than the legacy systems that you might be familiar with -- saving your business money and limiting the effects that your central heating system has on the environment.

    If your business is interested in a central heating system, National Air Warehouse has a wide range of options that you can choose from. Contact us today to find the system that is right for you!

  • Heat Pumps vs. Standard Air Conditioners: Comparing the Prices of Split Systems

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    If you are looking to upgrade the air conditioning system in your home or office, one of the decisions that you might have to face is whether to buy a standard air conditioning system or a heat pump system. While a standard split system air conditioner provides familiarity and reliable performance, heat pump split systems also have a wide range of benefits, including a higher degree of energy efficiency. As you weigh the options, one of the things that might be on your mind is price. Read on to look at side-by-side comparisons of air conditioner split systems and heat pump split systems from one of the top retailers in the industry.

    Current Prices for Rheem Split Systems

    Rheem is one of the top HVAC retailers in the industry, providing both electric split system air conditioners and heat pump split systems. Take a look at the prices for some of their comparable products:

     

    1.5 Ton / 14 SEER / R410A / Air Conditioner Split System: $1,637.05

    1.5 Ton / 14 SEER / R410A /Heat Pump Split System: $1,945.44

     

    2 Ton / 15.5 SEER / R410A / Air Conditioner Split System: $1,713.41

    2 Ton / 15.5 SEER / R410A / Heat Pump Split System: $2,079.56

     

    3 Ton / 15 SEER / R410A / Air Conditioner Split System: $1,978.41

    3 Ton / 15 SEER / R410A / Heat Pump Split System: $2,041.74

     

    4 Ton / 15 SEER / R410A / Air Conditioner Split System: $2,505.42

    4 Ton / 15 SEER / R410A / Heat Pump Split System: $2,649.36

     

    Analyzing the Prices of Rheem Split Systems

    As you can tell, there are multiple factors that affect the price of Rheem split systems. One of the most noticeable takeaways from this side-by-side comparison is that heat pump split systems are slightly more expensive than air conditioner split systems. However, it is important to note that a heat pump split system might save you more in the long run by cutting down on your energy bill.

    Other factors that can affect price include cooling capacity and SEER rating. Also, if you haven’t bought a new air conditioning system in a long time, you should take note that all new split systems use the R410A refrigerant, which is much more environmentally friendly than the refrigerants that were previously used -- another great reason to upgrade your system!

    National Air Warehouse offers a wide range of air conditioner split systems and heat pump split systems, including many manufactured by Rheem. Contact us today to find the product that is right for you!

  • Distinguishing Between Run Capacitor Options

    As you might guess from the name, the run capacitor plays a key role in keeping your HVAC system up and running. As a result, there’s never a good time to find out that you have a faulty run capacitor. Furnaces, air conditioners, and heat pumps all rely on run capacitors to work properly. The capacitor holds the electric charge that powers the fan motor in your HVAC system, so when the capacitor stops working, you have to get a replacement.

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    Choosing a new run capacitor can be harder than you think. Browsing the options can be confusing, since many capacitors look similar, and the distinctions between them can be hard to navigate: What do Single and Dual mean? What do MFD and VAC mean? As you consider different run capacitors, it can be helpful to understand these terms so that you can identify the run capacitor that is most compatible with your system.

    Single vs. Dual Capacitors

    As you look at the different run capacitors on the market, one of the most important things to note is whether the product you are considering is a single unit run capacitor (often shortened to “single” in product descriptions) or a dual run capacitor (often shortened to “dual”). When you are replacing the run capacitor in your unit, you should make sure that the type you purchase is the same as the one you are replacing.

    A single unit run capacitor hooks up to a single motor, and it is more commonly used in smaller HVAC systems, like small air conditioners. A dual run capacitor incorporates two capacitors into a single unit. With a dual run capacitor, you can power two electric motors. That makes dual run capacitors ideal for for larger HVAC systems, like large air conditioners and heat pump units that have both a fan motor and a compressor motor.

    Comparing Electrical Ratings

    Run capacitors can be described by two electrical ratings: MFD and VAC. The first rating, MFD, refers to the unit’s capacitance, which is given in microfarads (MFD). The capacitance is the amount of charge that the capacitor can store when a particular voltage is applied. The second rating, VAC, is an indicator of the supply voltage for which the unit is rated. Most run capacitors on the market today are either 370 VAC or 440 VAC. You need to make sure that you choose a capacitor that matches the supply voltage for your system, because if the voltage applied is too high, it can cause your capacitor to fail prematurely.

    National Air Warehouse offers many different run capacitors. You can choose between over 30 single unit capacitors and over 50 run capacitors, with a wide range of capacitance levels (MFD). Depending on your needs, there are also both 370 VAC and 440 VAC products to choose from. Contact us today to find the run capacitor that is right for you!

  • Choosing an Air Conditioner with the Right Heating Capacity for Your Home Building Project

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    As a home builder, choosing the right air conditioner can make or break the success of your project. If you make the right choice, you can ensure an optimal climate for the home without busting the homeowner’s wallet. With the wrong air conditioner, the new house might remain uncomfortably warm, even when the AC system is running at full capacity, and and it can significantly increase the homeowner’s energy bills.

    Some of the aspects of air conditioning systems that home builders have to consider include heating capacity, cooling capacity, cooling efficiency, heating efficiency, air flow orientation, price, and brand. Read on to learn more about choosing a system with the right heating capacity for your project.

    Understanding Heating Capacity Measurements

    For HVAC equipment, heating capacity is measured in British Thermal Units (BTUs). Formally, one BTU is defined as the amount of energy that is required to raise the temperature of one pound of water by one degree Fahrenheit. In the context of an air conditioner, the heating capacity is the amount of energy that it takes to remove a certain amount of heat from the surrounding air. For air conditioners than are intended for entire homes and buildings (rather than single rooms), you will typically see BTUs ranging from about 40,000 to over 115,000.

    Factors Affecting Air Conditioner Heating Capacity Needs

    At the most basic level, the number of BTUs you need the air conditioner to have depends on the size of the home you are building. Put simply, a larger home needs an air conditioner with a higher heating capacity. However, there are also other factors that can affect the needs of the home. These include:

    • Window type, size, and location. Windows affect the amount of sun the home gets in the summer, which in turn impacts the amount of heat that must be removed from the air by the AC system.
    • Insulation type and quality. If the home has excellent insulation, you may be able to get away with an air conditioner with a lower heating capacity.
    • Height of the ceilings. The height of the ceilings affects the overall amount of heat that must be removed from each individual room, and it also impacts how much heat is retained within each room.
    • Location of the home. If the home is located in a cool climate, the necessary heating capacity for the AC system is lower than it would be for a house of the same size in a warmer climate.

    At National Air Warehouse, homebuilders can find air conditioning systems that work for any project. Contact us today for more information!

  • Does Your Air Conditioning System Need a New Condenser Fan Motor?

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    During the dog days of summer, there is nothing worse than an air conditioning system malfunction in your home or business -- especially if you are unable to determine the cause. Immediately jumping to the conclusion that you need to replace your whole air conditioning unit can be a costly mistake, but it can also be very expensive to hire an expert to identify an easily diagnosable problem. When your air conditioner stops working, one of the simplest things to check for is a malfunctioning condenser fan motor.

    The Importance of the Condenser Fan Motor

    In an air conditioning system, heat from the surrounding air is absorbed by a refrigerant, creating cool air that can be circulated throughout your home or business. The condenser is the part of the system that releases the heat that has been absorbed by the refrigerant during the cooling process, which gets the system ready for the next cooling cycle. As the refrigerant releases the heat, the condenser fan blows the heat past the condenser coil so that the heat can be released. The condenser fan motor is the driver of the condenser fan, so it is essential for the proper functioning of your air conditioning system.

    Diagnosing Problems with Your Condenser Fan Motor

    A telltale sign that your condenser fan motor might not be working is a situation in which your air conditioning seems to work for awhile, but then stops working. When you initially turn on the air conditioning unit, it will blow cold air into your home or office, but a short time later, the unit will just start blowing out room temperature air.

    To further investigate the situation, you can turn the system on and monitor the condenser fan. If the condenser fan does not start spinning within 20 minutes, it is likely that there is a problem with the condenser fan motor. There is a chance that the problem is mechanical -- that is, a stuck fan -- so you can try to get it spinning again by nudging it with a small stick. However, if this does not work, you probably need to replace your condenser fan motor.

    Replacing Your Condenser Fan Motor

    Luckily, most condenser fan motors are not extremely expensive. You can buy a high quality condenser fan motor for $175 to $200, which is much less than purchasing an entirely new air conditioning unit. National Air Warehouse offers top-notch condenser fan motors at competitive prices. Contact us today to find a motor that works for your system!

  • Understanding Insulation Ratings for Duct Replacements: A Guide for Home Remodelers

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    If you are a home remodeler, you might find yourself needing to replace the ducts in existing HVAC systems. Whether the duct is in an attic, a basement, or a crawlspace, the wear-and-tear of long-term usage can damage the duct, resulting in leaks that cause air to escape before it can be released into the home. In many cases, ducting needs to be replaced as part of a larger home remodel, in order to ensure that a comfortable climate can be maintained in all rooms of the house.

    While the ductwork in an older home may be uninsulated, most of the replacement ducts on the market today are insulated. When you consider the options, you will find that different ducts have different insulation ratings, which are expressed as R-values. You need to understand what the R-value means in order to choose the right one for your home remodeling project.

    Thermal Resistance (R-Value) Definition

    The United States Department of Energy defines thermal resistance, also known as R-value, as “the insulating material’s resistance to conductive heat flow.” Put more simply, the R-value measures the effectiveness of the insulation material. A material with a higher R-value is a better insulator. Some of the factors that influence R-value include the composition of the insulation material, the thickness of the material, and its density.

    The Right R-Value for a Home Remodeling Project

    When deciding how high the R-value needs to be for the home remodeling project that you are currently working on, the two main things you need to consider are the climate zone in which you are working and the location of the ducting within the home.

    • For homes that are located in a COLD CLIMATE, a high R-value is extremely important. If the ducting is located in an attic, the R-value should be between R6 and R11. For ducting located in a crawlspace or unheated basement, anywhere from R2 to R11 will probably suffice.
    • For homes that are located in a MIXED CLIMATE, a high R-value is slightly less important, but it can help to save the homeowner money during the colder months. If the ducting is located in an attic, an R-value between R4 and R8 is sufficient. The range expands if the ducting is located in a crawlspace or unheated basement; anywhere from R2 to R8 will probably work.
    • For homes that are located in a WARM CLIMATE, you should still be looking for replacement ducts with R-values between R4 and R8 if the ducting is located in the attic. If the ducting is located in a crawlspace or unheated basement, you can probably get away with no insulation at all, but to be on the safe side and help save the homeowner money, most home remodelers choose ducting with an R2 or R4 value.

    If you’re looking to purchase ducting for your home remodeling project, National Air Warehouse offers options with R-values ranging from R4 to R8. Contact us today for more information about our products!

  • Understanding the AFUE Rating System

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    When looking for a new furnace, you’ll probably notice different options have different AFUE ratings. AFUE (which may be pronounced as “A-Few” or “A-F-U-E”) stands for Annual Fuel Utilization Efficiency. Essentially, it is a measure of the efficiency with which the furnace operates. Therefore, it essential to consider the AFUE rating when you purchase a new furnace.

    Calculating the AFUE Rating

    The Federal Trade Commission requires all new furnaces and boilers in the United States to display their AFUE rating to consumers. Like SEER ratings for air conditioning systems, the AFUE rating indicates the level of efficiency with which your system operates. However, unlike the SEER rating system, which utilizes an arbitrary rating scale, the AFUE rating coincides with the direct calculation of the ratio of the annual heat output of the furnace to the total amount of energy consumed by the furnace. Put more simply, it is the amount of heat produced per unit of energy consumed.

    AFUE = (Total heat output) / (Total energy consumed)

    When you perform this calculation, you will come up with a percentage -- which is your AFUE rating. If your AFUE rating is 85%, then 85% of the fuel you put in your furnace will be converted into usable heat. The other 15% will be lost to air leaks, burners, and other sources of inefficiency. However, it is important to note that heat losses in the duct system and piping are not included in the AFUE rating. According the the U.S. Department of Energy, additional energy losses can be as high as 35% if your ducts are located in an attic, garage, or other unconditioned area.

    What to Expect from an AFUE Rating

    For old, low efficiency heating systems, the AFUE is usually between 56% and 70%. A heating system is considered to have medium-level efficiency if the AFUE rating is between 80% and 83%. To be considered a high efficiency heating system, a furnace must have an AFUE rating that is between 90% and 98.5%. Choosing a higher efficiency system with a higher AFUE rating will help you save both energy and money.

    An Important Caveat: AFUE Ratings and Fuel Type

    When it comes to energy cost comparisons, AFUE ratings can only be directly compared if you are looking at systems that utilize the same fuel type. For example, natural gas furnaces can vary widely in AFUE rating, while all electric furnaces have AFUE ratings between 95% and 100%, since there are basically no sources of energy loss -- but that doesn’t mean that choosing the electric furnace will yield lower energy costs. Electricity costs more than natural gas in most parts of the country, so a gas furnace with a slightly lower AFUE rating will probably save you money in the long run.

    National Air Warehouse offers a wide range of medium- and high-efficiency gas furnaces. Contact us today to find the right system for your home or business!

  • Choosing a New Air Conditioner Condenser

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    Over the last few weeks, we’ve been talking about getting your air conditioning system up and running for summer. That means you need to make sure that all components of your AC system are in top shape. If they’re not, you may need to repair or replace individual parts or the whole system. For owners of split systems, it is not uncommon to find that the condenser -- also known as the outside system or the outdoor unit -- has been damaged by inclement winter or spring weather. If you need to replace your condenser to get ready for summer, there are a few important things to know.

    Condenser Basics

    The condenser is an essential part of a split system air conditioner, which is why it is necessary to have it replaced if it is not working. After the refrigerant is heated in the compressor, it is transferred to the condenser, where it passes through a series of coils. As it passes through these coils, the heat from the refrigerant escapes through the fins of the condenser, and by the time it reaches the end of the coils, it is much cooler. Ultimately, the refrigerant leaves the condenser as a mist, which is turned into a gas and cooled in the evaporator coil before being blown out as cool air by the fan.

    Today, most condensers come pre-charged with a refrigerant. R-410A is the newest type of refrigerant and the one to look for when you are buying a condenser. In contrast to alkyl halide refrigerants that contain bromine or chlorine, like R-22, R-410A does not contribute to the depletion of the ozone layer. It also allows for higher seasonal energy efficiency (SEER) ratings than R-22.

    Understanding SEER Ratings

    When choosing between condensers, you are likely to encounter models that have different SEER ratings. Most commonly, you can find 14 SEER and 16 SEER models, but 18 SEER condensers are also available. The SEER rating indicates the energy efficiency of the condenser model, with a higher number indicating a higher level of efficiency. Although it may cost more upfront, choosing a system with a higher SEER rating can save you money in the long-run and reduce the degree to which the refrigerant contributes to climate change.

    Understanding Cooling Capacities

    If you are replacing your condenser, it is essential that you choose a model with a cooling capacity (tonnage) that is consistent with your indoor system. If you are unsure about what size to buy for your split system, it can be helpful to contact your retailer.

    National Air Warehouse provides a wide selection of condensers at multiple sizes, and we can help you figure out which size you need. All of our condensers come pre-charged with R-410A, and we ship to your home or office for free. Contact us today to replace your condenser before summer heats up!

  • How do Your Home or Business HVAC Costs Compare to Others?

    It's sometimes difficult to determine if your building's heating and cooling costs are appropriate. The costs are dependent on multiple factors, like the type of fuel used, the square footage of the business or home and the weather in the area. The average cost for heating a 1200 square foot home in Florida is very different than heating a house of the same size in North Dakota. However, knowing if your building is above or below average can impact your decisions in upgrading, replacing or improving your HVAC system. A home that has higher than average energy costs may benefit from an upgrade to the heating and cooling systems.

    The U.S. Energy Star site provides a calculator for comparing your building's energy cost to others. To use the calculator, you'll have to provide the following:

    • Zip code
    • Building Square Footage
    • Number of full-time occupants
    • Types of fuels used in the home
    • Last 12 months of utility bills

    With this information, the Energy Star calculator is able to give insight into the efficiency of the heating and cooling in a home or business location. Other everyday utility uses, like hot water, appliances and lighting are separated. Finding 12 months worth of energy bills may require some work. However, some utilities may provide a shortcut called "Green Button." This is a file that stores your utility data. It can simply be uploaded to the Energy Star calculator in place of the 12 months of utility bills. If your utility sums the last year's worth of energy costs, that is also a good shortcut.

    The Energy Star calculator will give the building a score between 1 and 10. Lower scores imply that the home or business location could benefit from an improvement in the heating and cooling system. The calculator also provides an estimate for how much money could be saved by upgrading the heating and cooling to a level 10 (the most efficient.) For those interested in the environmental impact of their building's HVAC system, the calculator also provides a sum of how much pollution is generated. An efficient home typically generates pollution similar to what one car creates. A monthly energy use graph is also generated to show the building's energy expenditure over time.

    While there is a general rule of thumb that says to replace HVAC equipment more than 10 years old, home and business owners can get more insight into their building's efficiency through tools like the Energy Star calculator. A low score implies that the system could benefit from an upgrade. A higher score may mean that minimal improvements, like improving the ducting insulation, could be appropriate to reduce energy costs.

  • Industry HVAC Trends Increase HVAC Performance

    In March 2017, Technavio published a report highlighting technology trends in the HVAC market. Building automation and remote control of HVAC systems were identified as major market trends. The report also noted that regular maintenance and incorporation of green technologies were trends. These trends are great for businesses and consumers because more efficient monitoring and maintenance are likely to reduce the cost of running an HVAC system. Here is how to capitalize on these trends.

    Purchase a smart monitoring system

    Businesses can choose from a variety of building monitoring systems. These monitoring systems often include other major building functions, like fire suppression and security. All the functions can work together for optimal efficiency.

    Homeowners can invest in a smart thermostat, like a NEST. These monitoring devices learn how the homeowners like having the heating and cooling in each portion of the house. The program balances these needs with energy saving measures to reduce home energy bills. NEST recently received an Energy Star rating in the U.S., which demonstrates that meets federal regulations for saving energy.

    Technavio adds:

    The rise in smart infrastructure projects around the globe is propelling the demand for new heating, ventilation, and air-conditioning components...

    This statement implies that HVACs will soon be joining the Internet-of-Things (IoT), smart devices controlled through the internet. HVAC components are being re-designed and optimized to work within this new system. New components, released in the near future, may work better with the IoT capability, leading to even greater cost savings.

    Complete maintenance at regular intervals

    Both homes and businesses can benefit from regular HVAC maintenance. Energy costs can be reduced by up to 40% with regular maintenance. Many homeowners and businesses owners don't take advantage of these costs savings because they wait until something is broken. While waiting till a component breaks may be simpler, it is more costly in the long-term, especially since the HVAC system may have more downtime in order to complete a major repair.

    Although many homeowners and business owners might not be surprised by the need for regular maintenance, the rise of the smart monitoring devices for HVAC systems can have huge consequences on cost. Not only do these smart monitoring devices reduce the energy bill, as they become more advanced, they could incorporate more functions. For example, a smart monitoring device could alert business owners when it was time to complete regular maintenance. By adding a smart monitoring device, HVAC systems now have the potential to add many new and practical functions.

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