Selecting The Right Air Conditioning System For Your Home

Buyers Beware: Correctly Sized Air Conditioners Save Money!


When you purchase a new air conditioning system to replace your old one - or if an entirely new system is being installed in your new home - the installer has to understand how huge or, more notably, how small the system must be. In order to know precisely how huge (or small) it should be, the specialist needs to compute how much cooling and heating capacity it need to have to keep the occupants comfy. This is called the load of the house.

The load of the house is partly dependent upon the house's square video. However, a true load computation surpasses that. An accurate load decision includes building construction; orientation to the sun; 'R' worth of the insulation; number, size, and positioning of rooms; number, size, and placement of windows and doors; types of windows and doors (thermal effectiveness); number and plan of floorings; and the environment.

Residential load calculations make use of mathematical formulas that take all these variables into consideration. They have been electronic, so they're not as lengthy as they remained in the past.

Identifying the load by utilizing general rules often results in an over-sized cooling and heating system, leading to an increased initial cost, increased regular monthly energy expenses, increased upkeep, and shortened equipment life since the devices cycles on and off too regularly.

Who Does the Load Calculation?
The contractor you decide to install your brand-new click here system needs to have the ability to carry out these estimations. You might ask him for this service. If he does not want to do it, or says it isn't required, you may want to look for a different professional. In some locations, the regional utility will perform a load calculation - consult your local utility.

Why it's Important to Have the Right Sized System
Having the wrong-size heating-cooling system can lead to multiple problems. Over-sizing your cooling read it here system is not a good idea. Without entering into too much information, your cooling load consists of two parts:

  • The temperature level of the air, called the sensible load.

  • Moisture or 'humidity' in the air, called the latent load.

We've all heard the stating, 'It's not the heat; visit our real estate blog it's the humidity.' A cooling system that is too big cools off the temperature level very rapidly, however it does not run long enough to eliminate sufficient moisture or 'humidity' from the air. The outcome is you feel cool but clammy. Many individuals then reject the thermostat to make the A/C run longer, increasing the utility expense. In many cases, the insufficient moisture removal resulting from over-sized cooling equipment can lead to mold development and other types of moisture-related damage.

A properly sized cooling system runs long enough to 'wring' wetness from the air. This enables you to be comfy at a slightly higher thermostat setting and enables you to save money on your utility bill. It also looks after the 'mugginess' without making you feel too cold.

Air conditioning systems are sized in 'loads,' which is a measure of the rate at which they deliver cooling, not just how much they weigh. One lots of cooling amounts to 12,000 BTU/H (British Thermal Units per hour), the rate of cooling needed to freeze one lots of ice at 32F in one day.

It is much better to have a system that provides a little less than the needed tonnage of cooling, rather than a system that supplies more than the required tonnage of cooling.

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