subject: Wiat Before Your Call A Heating Tech [print this page] You would be surprised if I told you that over 20 % of the ac unit in house are not provide right. If I told you that the unit was oversized for the house when they wherebasically installed would you believe me? It is true..
You have to be a little careful, with Ac installers, because they can size air conditioners larger than necessary. You say so why is that a problem?
In order for a Ac system to runeffectively you actual want it a little lesserthen needed. Installing on over sized unit are not energy efficient because they tend to short cycle. Short cycling means the unit start and stop right away. This uses deeper energy than a unit that starts and runs for a period of time. So you need you keep this in mind.
What I'm basically saying is the smaller unit is greater efficient if specified correctly. A bigger unit than what should be used will also not dehumidify effectively
again because of short run time. You pay more for energy with a bigger unit
that you do not need.
Ok now that you learn that, how can you check what your contractor is
designing for your home? They are books that are attainable from the ACAA
that you can get online. The Instruction Manuel is called the Manual J and S
Manual. this help ac installer select and calculate the building load You can also get a duct calculator online for about $10 that will also promote in figuring out the proper duct sizes for the building. They are several other factors . I.E.
You want to note of where the windows are, the direction of the home, and insulation levels. These measurements are then be entered into formulas that to calculate the amount of cooling your house will need The calculation number you are looking for is the latent cooling load & Sensible cooling load. .
What I'm talking about here is far deeper important than the bid price is. First make sure all the ac bidders are quoting the right size units and not oversized unit.
I will be talking about this deeper in my next articles next week
