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5 selected articles

5 Questions to Ask When Replacing Your Air Conditioner

5 Questions to Ask When Replacing Your Air Conditioner

Posted by Allison Bailes on August 29, 2011

comfort

Air conditioners don't last forever. Shocking, I know. The good news, though, is that if you have an old air conditioning system, replacing it should save you money. Efficiency has improved a lot since that old hunk of metal and noise was installed in your back yard.

Beyond just swapping out...

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Related topics : window air conditioner runs but doesn't cool / window air conditioner running but not cooling / air conditioner duct leak repair / air conditioner duct repair / window air conditioner replacement parts

Why an Oversized Air Conditioner Is a Bad Idea

Apparently, I haven't written a single article this summer about oversized air conditioners. Shame on me! I've written several in previous summers, mostly about how HVAC contractors bypass the HVAC design process by using rules of thumb and how they mess up the Manual J load calculations when they do go the preferred route. I've never written an article focusing on the reasons to size an air...

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Related topics : repair air conditioner condenser coil / how much money does air conditioner cost to run / air conditioner running cost calculator / air conditioner cost of running / how much does air conditioner cost to run per hour

What Is the Best Way to Deal with Crawl Space Air?

What Is the Best Way to Deal with Crawl Space Air?

Posted by Allison Bailes on September 16, 2013

ventilation

If you have a home with a crawl space--or are building or buying one--you have several options on what to do with that particular foundation type. Most crawl spaces are vented to the outdoors, but over the past decade, encapsulating the crawl space (as shown below) has gained favor among...

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Related topics : common home air conditioner problems / air conditioning system diagram / air conditioning system types / air conditioning system / cost of running ducted air conditioning

Don't Set Your Air Conditioner Thermostat Like This

Don't Set Your Air Conditioner Thermostat Like This

Posted by Allison Bailes on June 6, 2011

diagnostic/performance testing

It's been hot here in the Atlanta area lately. Just three weeks ago we were wearing jackets with low temperatures in the thirties Fahrenheit, and now we're getting up above our summer design temperature every day. That means that a lot of air conditioners are running as...

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Related topics : air conditioner cost of running / air conditioner cost to run / run air conditioner / common home air conditioner problems / setpoint air conditioner

Why Is Air Conditioner Capacity Measured in Tons?

Why Is Air Conditioner Capacity Measured in Tons?

Posted by Allison Bailes on September 21, 2012

building science

A few years ago, a student of mine told a funny story in a home energy rater class. He was an HVAC contractor and said he was installing a new air conditioner for an elderly woman. As he was explaining things to her, he mentioned that they would be installing a 4 ton unit. "Oh, my,"...

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Related topics : american air conditioning and heating