Journal
The comfort journal.
Plain-English guides on costs, sizing, efficiency, troubleshooting, humidity, filters, thermostats and hiring, written for Middle Tennessee.

Maintenance & HiringHow to Choose an HVAC Contractor in TennesseeWhat to ask, what to check and the red flags to avoid when hiring a heating and air company.
Maintenance & HiringFurnace Warning Signs and Carbon Monoxide SafetySigns that your furnace needs attention before winter and what to do if you suspect carbon monoxide.
Comfort & Air QualityAre Smart Thermostats Worth It?What smart thermostats do well, what they cannot do and how to get real savings from one.
Maintenance & HiringSpring and Fall HVAC Maintenance ChecklistWhat to check yourself and what to leave to a technician, season by season.
Comfort & Air QualityHow Often Should You Change Your Air Filter?Filter types, MERV ratings and a simple schedule that protects your equipment and your air.
Comfort & Air QualityControlling Humidity in Nashville HomesWhy Middle Tennessee houses feel clammy, what humidity level to aim for and how humidifiers and dehumidifiers help.
TroubleshootingWhy Is One Room Hotter Than the Rest?The most common causes of uneven temperatures and the fixes, from balancing to zoning and ductless.
TroubleshootingWhy Is My AC Freezing Up?The common causes of a frozen coil or ice on the lines, what to do right away and when to…
Systems & EfficiencyDuctless Mini-Splits for Older Homes and AdditionsHow mini-splits add efficient heating and cooling without ducts, and when they are the best answer.
Systems & EfficiencySEER2, HSPF2 and AFUE Explained in Plain EnglishWhat the efficiency ratings on air conditioners, heat pumps and furnaces really mean and how much they matter.
Systems & EfficiencyHeat Pump vs Gas Furnace in Middle TennesseeHow each works, how they perform in our winters and why dual-fuel systems are popular here.
Costs & PlanningRepair or Replace Your HVAC System?A simple way to decide: age, repair cost, efficiency and comfort, plus the rules of thumb contractors use.
Costs & PlanningHow to Size an AC or Furnace the Right WayWhy bigger is not better, what a load calculation looks at and a quick rule of thumb you can use…
Costs & PlanningHow Much Does a New AC Cost in Nashville?Commonly published central air conditioner prices, what drives the number and how to compare quotes fairly.