Click the map or choose your region:Region 1Region 2Region 3Region 4Region 5 Using our exclusive sizing calculator allows for a quick estimate of your home's needs. Remember to always have a licensed installer assure what is right for your home.When it comes to your heating and air conditioning system, bigger isn't always better, and smaller isn't always more economical. THE WRONG SYSTEM SIZE COULD COST YOU A system that is too large will cool or heat your house quickly, but you still may not feel comfortable. That's because it will satisfy the temperature setting on your thermostat before it can adequately remove sufficient moisture from the air—which is what makes you feel so sticky and uncomfortable in summer. What's more, the stress of short cycling (too many starts and stops) will shorten the life of your equipment and increase your heating and air conditioning bills. A system that is too small just cannot get the job done.

The  will run constantly in the summer and the  will do the same in winter, which may overtax your system and increase your energy consumption. In most homes across the country, systems are in fact too large. an oversized system not only makes it more difficult to control your comfort levels, it costs you money, because you're essentially payingac unit not blowing strong to heat or cool space that isn't even there. best air conditioner and furnace unitsThat's why a properlyac unit not putting out cold air completed load calculation is so important. dealer can determine the correct system type and size for your home by doing a room-by-room load calculation. This heat loss/heat gain

analysis is the best indicator of the correct system size and takes into consideration such critical factors as: Climate Number of windows and type of window treatments Insulation and ductwork Building materials and roof construction Skylights and fireplaces Ceiling heights The number of people inSizing Estimator for Air Conditioners Desired Indoor Cooling Temperature (°F) : The cooling capacity of an air conditioner is measured in tons. In regards to cooling, 1 ton is equal to 12,000 BTU's (British Thermal Units). A standard air conditioner ranges in size, from smallest to largest: 18 = 1.5 Ton (18,000 BTU) 24 = 2.0 Ton (24,000 BTU) 30 = 2.5 Ton (30,000 BTU) 36 = 3.0 Ton (36,000 BTU) 42 = 3.5 Ton (42,000 BTU) 48 = 4.0 Ton (48,000 BTU) 60 = 5.0 Ton (60,000 BTU) For example, a model SSX160241 is a 2 Ton (24,000 BTU) air conditioner. There is only one correctly sized air conditioner or heat pump for your home.

A unit that is oversized will turn on and off too frequently, called “short cycling.” Short cycling causes the unit to lose both efficiency and the ability to properly dehumidify the home. This may result in higher utility bills and a less comfortable home. A unit that is undersized will run too often, and on the hottest days of the year, may not be able to adequately cool the home.Home / Other Calculators / BTU Calculator The BTU Calculator can estimate the amount of BTUs you will need to heat or cool your home, based on the size and the temperature you want for your home.Please note that this calculator can only gauge a rough estimate. You should also consider factors like efficiency decrease of the heater or air conditioner with time, the shape/type of your home or room, insulation conditions, and other factors. 1 watt is approximately 3.41214 BTU/h. good (very few leakages or windows) poor (many leakages or windows) Temperature to Increase or Decrease Depending on your local winter/summer temperature,e.g. 75F for Boston winter, 35F for Atlanta winter.

Free Estimation of Your Heating or Cooling Project >>Reference The British Thermal Unit, or BTU, is an energy unit. It is approximately the energy needed to heat one pound of water for 1 Fahrenheit. 1 BTU = 1,055 joules. 1BTU/hour = 0.293 watt. One very well-insulated 1,000-square-foot home in Boston needs around 24,000 BTUs to heat in winter. One 2,000-square-foot-home with normal insulation conditions in Washington, D.C., needs a 48,000 BTU air conditioner for adequate cooling in summer. Other CalculatorsLoveIP SubnetGas MileageConversionGPAGradeTime CardTime ZoneHeightGDPConcreteMarriageAgeMore Other CalculatorsFinancial | If you're considering a ductless split system installation, you probably have some questions. Using highly advanced technology, Mitsubishi Electric Cooling and Heating makes some of the best ductless air conditioning systems on the market. These innovative cooling devices are highly efficient by delivering a consistent, quiet flow of cool air to keep you comfortable and conserve energy.

However, split systems must always be properly sized to accommodate the indoor spaces they are designed to cool. The primary advantage of Mitsubishi Electric ductless air conditioning systems is that you don't need the duct work required by a central air conditioner. Another benefit is that, unlike central air conditioning systems, ductless systems are much easier to install. Split systems consist of an outdoor unit and one or more indoor units (air handlers). The compressor and condenser coil are located in the outdoor unit, while the evaporator coil is situated in the indoor unit. A small hole of less than 3 inches in diameter is made in the wall to accommodate electrical wiring and copper tubing that connects the outdoor unit to the indoor unit. The outdoor unit transfers refrigerant from the compressor and condenser coil via the tubing to the evaporator coil in the indoor unit. Cooled air is then blown indoors by a fan that's virtually silent. The sleek and inconspicuous indoor units can be mounted on the wall or ceiling.

You can regulate the temperature of each indoor unit with a remote control or a wall-mounted thermostat. Multiple indoor units can be connected to the same outdoor unit. Each indoor unit can then be programmed to maintain a different temperature, thus creating separate cooling zones. This differs from central systems where the thermostat setting determines the temperature in every room. Proper ductless air conditioner sizing is essential for high efficiency performance and the level of cooling capacity. If the sizing is too small or too large, the system won't cool properly, and it won't operate efficiently. And if the system is improperly sized, if the indoor units are mounted in the wrong locations, or the installation itself is done incorrectly, you'll be left with an expensive problem to fix. Systems that are incorrectly sized and improperly positioned can seriously interfere with humidity control and cost a bundle in high electric bills. Sizing a split system will depend on existing insulation levels, the area you want to cool and on how many indoor air handlers you plan to include.

The more indoor units you want, the more precise the sizing must be. Because you're investing in a high performance system, technicians at Mitsubishi Electric Cooling and Heating recommend professional sizing and installation. That way, you'll know the job will be done properly and that your investment will be protected. Ductless splits cool a larger area at the same BTU level than do window air conditioners and portable air conditioners. Below is an approximate sizing guide: 350 square feet = 9,000 BTU 500 square feet = 12,000 BTU 750 square feet = 18,000 BTU 1000 square feet = 24,000 BTU 1250 square feet = 30,000 BTU 1500 square feet = 36,000 BTU The expert contractors at Mitsubishi Electric Cooling and Heating do not recommend installing a mini split system yourself. Although these systems are easier to install than central air conditioners, it's best to hire a licensed and insured contractor who employs NATE-Certified technicians. There are safety risks involved, and the installation process requires high-tech tools and specialized techniques.