Whether you’re a new homeowner or just learning the basics, this section covers general HVAC information that applies across all systems. Learn how your heating and cooling work together, what regular maintenance really matters, and how to avoid common mistakes. These articles are perfect for beginners or anyone wanting to better understand their home’s HVAC system.
If you’re buying your first home, don’t overlook the HVAC system. Here are the key questions to ask about heating, cooling, and air quality before you close. In my first home, I had no clue about HVAC. And I had no idea at the time that my profession would be in that industry. The term…
Here’s where you can become knowledgeable about dual fuel HVAC basics for homeowners—how they work, when they’re efficient, and when they are not. What Is a Dual Fuel HVAC System? A dual fuel HVAC system combines two heating technologies: an electric heat pump and a gas furnace. It switches between them automatically based on outdoor…
As a precaution, you should not reset an apartment AC unit without permission from the manager. They usually know what works best and how they wish you to proceed. Your air conditioner could be running, but it’s all iced up, stopping the airflow. Something to consider, especially if your thermostat is set too low. Too…
It may seem like you can buy refrigerant without a license, but some laws prohibit certain types and amounts of refrigerant. This is an important and confusing question to answer. Especially if you need to buy some R410A refrigerant without a license. If you get the wrong answer you could be breaking the law. I’ve…
Line set protruding from crawl space of house before connecting to the heat pump. Should I evacuate the line or take a short cut?
Quick Definition Of A Line Set In HVAC A line set, in HVAC lingo, connects an evaporator and a condenser. In other words, it’s a set of copper pipes connecting the indoor and outdoor units. Sometimes, only one of the copper pipes is insulated. When connected, these copper pipes are part of the sealed system…
A gas furnace sequence of operation begins with a signal from the thermostat to start the furnace. Next comes a call for the inducer motor to prove that venting will occur. Most thermostats these days are digital and will display “heat on” somewhere on the screen depending on your type of thermostat. With the thermostat…
What not to do with excess line set
I’ve worked on thousands of HVAC jobs and have yet to find an installation where the furnace is upside down. Not saying it hasn’t been done. The deception of being upside down can be that some furnaces can be installed in any position, but the labels on the doors didn’t get turned over. Some labels…