The day will come— or has already arrived— when you need a new air conditioner. So you call your local HVAC company. They send someone over to look at the system and within a day, you have an estimate. When you push back a bit, asking how they determined what size system you need and why they recommended this one . . . the guy says he or she is just replacing the unit you had. That’s when it’s time to step back and take a deep breath. New era in air conditioning For starters, today’s air conditioners are much more efficient than the old models. You might be able to get by with a smaller-size unit that will cost less to operate. [For a good summary on the subject, see this web page: http://energy.gov/energysaver/articles/central-air-conditioning] If your contractor doesn’t perform tests such as a Manual J or a Manual D (software to estimate the amount of conditioning capacity you need and software to analyze the ductwork), get a second opinion. It’s important that the HVAC contractor put some thought into ductwork.

Back in the day, when cooling technology was far less sophisticated, they just ran a tube from the central AC to each room. home ac unit comparisonsNowadays, you want more AC delivered to a bright, sunny dining area with southern exposure than you do to a north-facing bedroom. inside unit for acReplacing the AC unit without examining the ductwork is like declaring a person healthy whose heart is strong but whose arteries are clogged.how to hook up an air conditioning unit No, bigger isn’t always better It’s even more complicated when they get around to sizing the AC unit. Contemporary AC’s can be fine-tuned to the climate where you live, your home’s location, exposure, insulation, number and size of the rooms, height of the ceilings, number of windows, number of occupants, and various other factors.

If the unit is too small, it won’t cool the house evenly. If it’s too large, it will be shutting off and on before the humidity can be removed from the air. You may will hear a contractor tossing around terms such as ‘tons’ and ‘SEER’. A ton in air conditioning lingo is equal to 12,000 BTUs of cooling capacity. Typically, a 2-ton unit will cool 24,000 BTUs per hour. The other relevant term is SEER, or Seasonal Energy Efficiency Rating. This is a grade given by the government to indicate energy efficiency. SEER 24 is twice as efficient to run as a SEER-12 unit. If your HVAC guy lapses into tech-talk, throwing off phrases about load calculation and R-values, ask him or her to please explain it in layman’s language. How much cooling capacity do you need, in tons? What’s the SEER of the unit he or she is recommending? They should give you a written analysis, which you can then use to compare several quotes. In fact, before you call anyone, take a look at our service page on sizing.

At least the contractor’s talk won’t sound like a foreign language. This could be due to one of the following reasons:The file or page you are looking for no longer exists.The URL that was typed is incorrect. or by phone at 1-800-430-3376.All residential air conditioners will carry a label showing the unit's cooling output in kilowatts (kW). Every room and every home is different, so we recommend that you get a licensed contractor to visit your home and provide a detailed heat load calculation. Using the calculator below, however, will give you a rough idea of the cooling output you will need: 1. Please select your nearest regional 2. What is the ceiling area of the room you wish to Uninsuladed metal roof overInsulated metal roof overUninsulated tiled roof overInsulated tiled roof overUnairconditioned room over with carpeted floorsUnairconditioned room over with no carpets 3. What is the floor area of the room you wish to Uninsulated suspended timber floor enclosed underInsulated suspended timber floor enclosed underUninsulated suspended timber floor unenclosed underInsulated suspended timber floor unenclosed underUninsulated suspended concrete slab enclosed underInsulated suspended concrete slab enclosed underUnairconitioned room below

is the height of the ceiling in the room you are cooling? is the total area of the internal walls with unconditioned space adjacent? is the total area of external walls including all the windows? Weatherboard with no insulationWeatherboard with insulationCement and metal sheet with no insulationCement and metal sheet with insulationBrick veneer with no insulationBrick veneer with insulationConcrete block masonry with no insulationConcrete block masonry with insulation large are the windows? 8. How many people will be using the This calculator will estimate the capacity required to cool a single room. If you want an air conditioner to cool multiple rooms, the estimation process is more complex and you will need to seek advice from a licensed contractor.Solar AssistedServer Rooms / Indoor GardensMulti Zone (2-5 Rooms)Ceiling CassetteSlim DuctedFloor & Ceiling Mount9000 Btu Prices 3/4 Ton (400Sq Feet Or Under)12000 Btu Prices 1 Ton (400-600Sq Feet)18000 Btu Prices 1.5 Ton (600-800Sq Feet)24000 Btu Prices 2 Ton (800-1200Sq Feet)30000 Btu Prices 2.5 Ton (1200-1500Sq Feet)36000 Btu Prices 3 Ton (1500-1800Sq Feet)48000 Btu Prices 4 Ton (1800-2000Sq Feet)60000 Btu Prices 5 TonEnergy Star /Advanced Inverter TechnologyBest Priced Mini Split'sPortable AC UnitsWall and Window

UnitsFlat PanelMini Split ImportingSplit States / Cities 1. Midea Custom Built Multi Zone Ductless Mini Split System2. Mini Split Wifi Thermostat Controller With 7 Day Schedule3. Daikin Custom Built Multi Zone Ductless Mini Split System4. Midea 24000 Btu 19 SEER Super Inverter Mini Split Heat Pump AC5. Midea Custom Built Multi Zone 48,000 BTU Mini Split System6. Midea 21 Seer 2x9000btu Dual Zone Mini Split Heat Pump AC The sizing chart below is useful to help you determine your approximate Central / ductless Mini split air conditioner size requirements. If you are still not sure , give us a call at 813-770-7441 6,000Btu= .5 Ton    12,000Btu= 1Ton Mini-Split Air Conditioners FAQs How do I choose a ductless mini split air conditioner? Like all air conditioners you need to know how many BTUs you need to cool the area you are trying to cool. You also need to consider the number of air handles that you need normally one air handler per room is what you would need but, if your home has open areas you may be able to cool multiple rooms.

There are many options for types of air vents that you can purchase some sit in the home and are mounted on the walls and some can be mounted in the ceiling. It is important that you talk to a person who is certified to install air conditioning about your options to help you decide which would meet your needs. What are the pros and cons of a ductless mini split air conditioner? Ductless Mini split air conditioners is a cost effective choice to center air conditioning. Since the compressor sits outside they mini split air conditioners are very quiet and efficient. How do I install a ductless mini split air conditioner, why do I need a HVAC Professional? How big will the hole be in my wall? Do some ductless mini split air conditioners have heat? What is ductless dual zone and triple zone? General Air Conditioner FAQs What is the difference between manual and electronic controls? Could you explain the difference from between electric heat and a heat pump?