Contact your local YORK dealer > Learn more about our newly expanded LX Series products. > Find the right YORK® cooling solution for your home. 140 Years of Design, Innovation & Comfort The YORK® commitment to building quality home comfort products has a long story behind it - over 140 years long, in fact. In 1874, a manufacturing company in York, Pennsylvania, began making ice machines as an alternative to shipping ice from the Great Lakes. > Learn more about our History of Quality.Maryland Air Conditioning & Heating About Maryland Air Conditioning & Heating Companies Commonly called the HVAC, a home’s heating and cooling system is like its circulatory system, pushing warm or cool air throughout the home. Since it is so integral, a home’s heating, ventilation, and air conditioning system’s importance cannot be underestimated, and it’s vital to have the best HVAC technicians on call in case something happens. But Maryland and metro DC HVAC companies don’t only do repairs and maintenance.

Many perform installations as well and can advise on the best system for your particular property, an especially important decision for those building a new home or renovating an old one. financing for hvac customersThe system shouldn’t be too large for the home—that’s a money drain—and it obviously shouldn’t be too small, as the home won’t be adequately cooled or heated. 2 ton window air conditioner priceIt’s imperative to get the experts’ opinions on the proper size for your new system.ge ac wall unit 5th year as a Best Pick Read more about CroppMetcalfe Read more about James Vito, Inc. Amazing Heating & Air Conditioning, Inc. Read more about Amazing Heating & Air Conditioning, Inc. James A. Wheat & Sons

Read more about James A. Wheat & Sons 3rd year as a Best Pick Read more about Minnick's Inc. Winstar Home Services (formerly Patriot Electric) Read more about Winstar Home Services (formerly Patriot Electric) Types of HVAC Systems Some Communities Serviced by Montgomery County Best Pick Companies: The efficiency, or SEER, rating of an air conditioner refers to how much electricity that particular unit will consume to keep you cool. SEER is an abbreviation for “seasonal energy efficiency ratio” and it tells you how much electricity an air conditioner will consume over a typical season. The higher the SEER, the less electricity a unit consumes per season. Starting in 2007, the minimum SEER rating became 13. Before this, the efficiency levels could have been as low as 6 SEER or less. The actual savings every SEER number allows you varies, but on the average it is between 5 and 10 percent savings per larger number SEER selected. The tonnage of an air conditioner is the rating of a unit's ability to remove heat from your home or business.

A ton of cooling is 12,000 BTU’s and residential air conditioners are made in sizes of 1.5 ton to 5 ton in half ton increments. A BTU is a measure of heat which stands for British Thermal Unit. One BTU is equal to the amount of heat one wooden match puts out. In other words, a 1.5 ton air conditioner will remove the amount of heat the 18,000 matches would emit if they were all burning at the same time. The reason it is called a ton is that is the amount of heat (12,000 BTU) it would take to melt one block of ice weighing one ton in one hour. The job of an air conditioning contractor is determining the correct size, or tonnage of a unit for you, and in this case it is not a matter of "the more the better." An oversize air conditioner will not remove the proper amount of moisture from the air to give you the comfort you deserve. An undersized air conditioner will run constantly even at moderate temperature and will not adequately condition the space. There are some air conditioners you can slightly oversize and still get very good dehumidification and those are two speed and variable speed units. 

A variable speed furnace will also help in having a system that not only keeps you cool, but dry also. Single Speed Air Conditioners Single speed air conditioners produce the same amount of heat removal all the time regardless of how hot and muggy it is outside. They have to be large enough to cool you on the hotter days of the year and because of that, they are larger than needed on the moderate days. A good contractor selects a unit in the middle, as it is a bad idea to pick a unit sized that will handle a peak day when the bulk of the time we do not see peak temperatures. This means that on a day where it is 100 degrees, the unit will run constantly, but that is far better that picking a large enough unit to handle the few days that it goes over 100 degrees. Single speed units come in three different SEER ratings; 13, 14 and 15 seer. All of these units can use any type of indoor furnace or air handler and they are 35 to 50 percent more efficient than most 15 to 20 year old units you might have in your home or business.

Two Speed Air Conditioners Two speed air conditioners have two distinct output capacities to better condition your home. These units have the ability to change the amount of cooling capacity they produce depending on how hot it is. Because they can slow down and run longer, they do a better job of removing moisture and providing enhanced comfort. A two speed air conditioner can run in low or high speed depending on the temperature outside that day. These units are very efficient and provide a high level of comfort and dehumidifcation. Variable Speed Air Conditioners Variable Speed units are the very best air conditioners available and provide extreme comfort and moisture removal unlike any other system available. Instead of turning on and off all day causing temperature swings along with hot and cold spots, a variable speed unit has 700 different outputs to accurately and efficiently provide temperatures to 1/10 of a degree of what is desired. The Trane True Comfort variable speed units are also the quietest on the market and can barely be heard running.