What Is the 20 Degree Rule for Heat Pumps? When it comes to 20 degree rule heat pump, the “20 degree rule” for heat pumps means that a heat pump system is designed to maintain a temperature difference of about 20 degrees Fahrenheit between the indoor and outdoor air....
HVAC Blog
Could That Strange AC Noise Be a Simple Fix Waiting to Happen?
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 air conditioners...
Choosing a Ductless Mini Split System Can Be the Easiest Way to Solve Hot and Cold Spots in Your Home
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 and newer properties. Poor air...
Most Heat Pumps Are Repairable with the Right Expertise
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 noises, or even a unit that won’t start—often have...
The 20 Degree Rule Helps Maximize Heat Pump Efficiency
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 outdoor temperature in winter, or cooler in summer. This keeps your system running...
Can a Heat Pump Be Repaired?
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 of your system, the type of failure, and repair costs compared to...
Not Every Heat Pump Breakdown Means You Need a Replacement
Does a Heat Pump Breakdown Always Mean Replacement? No, most heat pump breakdowns do not mean you need a replacement. Many problems can be fixed with repairs, routine maintenance, or part replacement instead of a full system swap. When your heat pump stops working or...
Preparing Your Marin County Business for Summer: Commercial HVAC Maintenance Checklist
Marin County businesses have a short pre-summer window: typically May through early June, to inspect and service commercial HVAC systems before peak cooling demand arrives. North HVAC Services walks through a 12-point maintenance checklist, explains what a licensed...
Why Your AC is Blowing Warm Air: Common Causes and Solutions for Petaluma Homeowners
When your air conditioner starts pushing warm air on a hot Petaluma afternoon, the issue typically traces back to one of five causes: incorrect thermostat settings, a clogged air filter, low refrigerant from a leak, a frozen evaporator coil, or a failing outdoor unit....
Why Your Air Conditioning System Might Be Freezing Up Unexpectedly
What Unexpected AC Freezing Looks Like When your air conditioner freezes up, it’s usually not subtle. You might notice a thick layer of frost or ice covering the copper refrigerant lines outside your building. Sometimes, the indoor evaporator coil inside your air...
Spring Comfort Sale
- $99 Service Call Diagnostic
- Up to $500 off AC installation or Furnace Replacement
- $500-700 off heat pump installation










