HVAC Blog in Petaluma, CA and Surrounding Areas

Can a Heat Pump Be Repaired or Is Replacement Needed? Most heat pump problems can be repaired, but there are situations where replacement is the smarter or only option. The decision depends on the age

What Is the 20 Degree Rule for Heat Pumps? The 20 degree rule states that you should set your heat pump so the indoor temperature is no more than 20 degrees Fahrenheit warmer than the

Are Most Heat Pump Problems Truly Repairable? Yes, most heat pump problems are repairable when handled by a skilled technician with the right tools and knowledge. Many issues that seem serious—like loss of heat, odd

Why Do Homes Develop Hot and Cold Spots? Homes develop hot and cold spots because of uneven airflow, insulation issues, or limitations in traditional ducted HVAC systems. These temperature differences are common in both older

What Counts as a ‘Strange’ AC Noise? A ‘strange’ AC noise is any sound that’s new, unexpected, or louder than your system’s usual hum. Common examples include banging, screeching, rattling, buzzing, clicking, or hissing. Most

Key Takeaways Ductless mini-splits handle heating and cooling year-round; window units and space heaters do not. Most additions overload central HVAC equipment sized for the original square footage. Mitsubishi Diamond Authorized installers carry advanced training