You can entirely get screwed over with the size of your Heating plus A/C. Size matters in terms of heating in addition to cooling. If the Heating plus A/C is too small, it will run all afternoon long. The Heating plus A/C will job in addition to job until it burns itself out. Then a hefty Heating plus A/C repair is needed or the Heating plus A/C is just plain done for. Super overpriced or cheaping out with tiny Heating plus A/C? Too crucial of Heating plus A/C equipment is no better though. The Heating plus A/C is then constantly cycling on in addition to off. The powering up in addition to down is awful for the Heating plus A/C unit. It will also cause damage in this process. It also is awful in terms of efficiency. It is better to keep a steady stream of heating or cooling; Powering totally on in addition to shutting all the way down takes way more power to do. The Heating plus A/C will end up costing more when it runs half the time. Most Heating plus A/C providers try to size up with Heating plus A/C equipment too. What they do is called rule of thumb. Basically the Heating plus A/C guy walks around a house in addition to takes loose measurements. He eyeballs it in addition to then pads his numbers up for error. Then, the Heating plus A/C professional recommends a size for the home. The larger the Heating plus A/C, the more commission. So those numbers get padded quite high in addition to the homeowner usually gets stuck with way too much Heating plus A/C to handle. Do a little research before making the large leap on Heating plus A/C. Decide what type of Heating plus A/C you want in addition to what is the commanded size for your square footage. Take the Heating plus A/C company totally out of the equation.