advertise | privacy policy | terms & conditions
whole site search:

HVAC Articles


Heating, Ventilation and Air Conditioning (HVAC) can be a confusing topic for homeowners. This section dispels some of the mystery with excellent articles like Homeowner HVAC Diagnostics, and How to Clean an Outdoor Air Coil.

Performing a Professional Home Energy Audit
Ethan | May 21, 2013
Performing a Professional Home Energy Audit

Recently a friend was having a professional home energy audit performed, and I asked to tag along. I was curious to learn what tools and techniques a professional uses to analyze the efficiency of a home. I also wanted to learn what actions an auditor would recommend. The audit was performed by James from Energy Services Group, a local business specializing in residential energy conservation since 1981. If you live in central Maryland, Baltimore Gas & Electric (BGE) is probably your energy provider. The state of Maryland requires... 

See more of this article >>

How to Install a New Heat Pump (Overview with Pictures)
Ethan | May 29, 2012
How to Install a New Heat Pump (Overview with Pictures)

Welcome to our latest Pro-Follow! Last week I spent time with local HVAC specialist Chuck Thompson from County Comfort as he and his crew changed out a heat pump. Chuck was called in because after about 15 years the old heat pump had failed. For this job they installed a new, 15 SEER, 5 ton Bryant heat pump. Step 1: Disconnect the Old Indoor Unit To begin, Chuck’s crew needed to remove the old system, and they started by turning off the breaker and disassembling the indoor unit to make it easier to remove.This is the old coil,... 

See more of this article >>

How to Diagnose & Repair a Broken Air Conditioning (A/C) Unit
Ethan | May 18, 2012
How to Diagnose & Repair a Broken Air Conditioning (A/C) Unit

I’m excited to let you know that today’s Pro-Follow is the work of a new contractor named Chuck Thompson. Chuck is the owner of County Comfort LLC and an experienced HVAC specialist. Look for his information to appear on our Meet the Pros page soon and more Pro-Follows to come. Chuck received a service call that a homeowner’s air conditioning wasn’t working, and he let me shadow him on the job. The Symptoms A homeowner’s A/C can quit for several different reasons. In this case, the homeowners realized that... 

See more of this article >>

How to Clean an Outdoor Air Conditioning Coil (Trane unit example)
Ethan | September 13, 2011
How to Clean an Outdoor Air Conditioning Coil (Trane unit example)

Twice in five years I’ve cleaned my outdoor AC condenser, and both times I’ve been amazed by the amount of dirt and  leaves I’ve found. Fortunately, cleaning your outdoor coil is a task that any homeowner can accomplish, and it doesn’t take very long. A good cleaning will help your AC unit to function more efficiently, and potentially make it last longer too. Read on to learn how I removed the fan, outside panels and scrubbed away a lot of dirt and debris from my outdoor AC condenser. Editors note: This post originally... 

See more of this article >>

How to Replace an HVAC Condensation Drain
Ethan | August 5, 2011
How to Replace an HVAC Condensation Drain

Remember those kitchen cabinet pulls I installed at Fred and Kim’s house? Did I mention that their air conditioning wasn’t working that day… and that it was 100° outside when I did those? I didn’t? Well, it was miserable. The Fauth family came to our place to cool off that night, and I told Fred and Kim how a while back our HVAC quit working because the condensation drain was clogged. They went home and checked, and sure enough, found their drain line full of dust, rust, and other gunk. Water pooling inside the... 

See more of this article >>