Replacing or upgrading a thermostat is a common home improvement task, but safety and system protection are important. This article explains whether to turn off a furnace when changing a thermostat, step-by-step procedures, safety precautions, and troubleshooting tips to ensure a smooth swap. Quick Answer Recommended Action Yes, usually. Turn off power at the furnace … Read more
HVAC and furnace are commonly confused terms in home heating and cooling. This article explains the difference between HVAC and furnace, how each system operates, cost and efficiency implications, maintenance needs, safety considerations, and guidance for homeowners deciding between upgrades or repairs. Feature Furnace HVAC Primary Function Heats indoor air Heats, cools, ventilates, and controls … Read more
A furnace that makes a persistent click while running can be unsettling and signal issues ranging from minor electrical relay chatter to dangerous ignition problems. This article explains common causes of a furnace clicking while running, safe troubleshooting steps, and when to call a licensed HVAC technician. It emphasizes practical fixes, maintenance tips, and cost … Read more
Furnace ignitors are critical components that initiate combustion in gas furnaces. This article examines the primary types of furnace ignitors, how they operate, common failure signs, maintenance tips, and guidance for selecting the right ignitor for performance and safety. Understanding these differences helps homeowners and technicians troubleshoot and replace ignitors efficiently. Ignitor Type Key Feature … Read more
The MERV rating of an air filter affects indoor air quality and HVAC performance; choosing the right MERV for a furnace balances particle capture with airflow and system health. This guide explains how MERV works, how to determine a furnace’s limits, and practical steps to select the right filter to protect the system while improving … Read more
The furnace filter plays a critical role in home heating systems by trapping dust, debris, and airborne particles. Skipping a furnace filter or using an absent/incorrect filter can cause reduced indoor air quality, higher energy bills, and premature equipment failure. This article explains the consequences of not having a filter in a furnace, how the … Read more
The furnace air filter location affects indoor air quality, heating efficiency, and maintenance routines. This guide explains typical filter locations, how to access and replace filters, how to measure sizes, and when to call a professional. It helps homeowners quickly locate the furnace air filter and maintain optimal system performance. Home Type Common Filter Location … Read more
The Armstrong Ultra 80 oil furnace is a popular mid-efficiency residential heating option known for reliable heat delivery, straightforward controls, and service-friendly design. This article explains how the Ultra 80 performs, how to size and install it, common maintenance tasks, troubleshooting tips, expected costs, and where to find parts and warranty information for American homeowners … Read more
The furnace switch accidentally turned off can leave a home cold and raise concerns about safety and system damage. This article explains immediate steps, troubleshooting techniques, safety checks, and prevention tips to restore heating and avoid common pitfalls. It focuses on practical, safe actions for household furnace systems in the U.S. Situation Immediate Action Why … Read more
The furnace pressure switch plays a critical role in safe combustion by verifying venting and inducer fan operation. When a pressure switch is stuck open it prevents the furnace from starting, causes frequent lockouts, or triggers error codes. This article explains how a pressure switch can become stuck open, how technicians diagnose the problem, and … Read more