Mauzy Cooling, Heating, Plumbing, and Electrical is proud to serve homeowners across San Diego County with expert cooling, heating, plumbing, and electrical services. As summer heats up, many homeowners unknowingly make simple HVAC mistakes that send energy bills soaring. The good news? With a few smart habits — and help from Mauzy’s experienced technicians — you can keep your home cool, comfortable, and efficient all summer long.
1. Ignoring Your Air Filter
Clogged or dirty air filters are one of the most common causes of HVAC inefficiency. When airflow is restricted, your system works harder to cool your home — consuming more electricity and wearing out components faster.
The fix: Check your air filter at least once a month during summer and replace it as needed. Mauzy recommends high-efficiency filters for San Diego homes, especially those near the coast where salt and dust buildup are common.
2. Skipping Seasonal Maintenance
Many homeowners wait until something breaks before calling for help. Unfortunately, that reactive approach often leads to higher repair costs and avoidable breakdowns during the hottest weeks of summer.
The fix: Schedule professional HVAC maintenance every spring before peak cooling season begins. Mauzy’s technicians clean coils, check refrigerant levels, and inspect electrical connections — ensuring your system runs smoothly and efficiently all summer long.
3. Setting the Thermostat Too Low
We’ve all been there — walking into a warm home and cranking the thermostat down to 65°F hoping it will cool faster. But that’s not how air conditioning works. Your system cools at a steady rate no matter how low you set it, and excessive cooling only wastes energy.
The fix: Set your thermostat around 76–78°F for ideal comfort and efficiency. Use a smart thermostat to make automatic adjustments when you’re away or asleep. Mauzy installs advanced smart thermostats that learn your preferences and save you money without sacrificing comfort.
4. Ignoring Air Leaks and Poor Insulation
Cool air loss through leaky ducts, doors, or windows can account for 20–30% of wasted energy in San Diego homes. If your AC runs constantly or you notice uneven cooling, air leaks might be the culprit.
The fix: Have Mauzy perform a duct inspection and sealing service to ensure your system isn’t fighting against hidden leaks. Adding insulation in your attic and sealing gaps around windows also helps keep conditioned air inside where it belongs.
5. Blocking Vents and Registers
It’s common for furniture, rugs, or curtains to accidentally cover vents — but doing so restricts airflow, forcing your system to work harder.
The fix: Keep at least 12 inches of clearance around all supply and return vents. This simple adjustment improves comfort and helps balance temperatures throughout your home.
6. Forgetting About the Outdoor Unit
Your AC’s outdoor condenser needs space and airflow to operate efficiently. Leaves, dirt, and debris buildup can suffocate your system, leading to overheating and higher energy use.
The fix: Gently clean around the outdoor unit and trim back vegetation at least two feet in every direction. During maintenance visits, Mauzy technicians also inspect and clean condenser coils to restore maximum efficiency.
7. Holding Onto an Outdated System
Older HVAC systems often use more energy and may rely on outdated refrigerants like R-410A, which are being phased out. Even if your system still runs, it may be costing you hundreds in unnecessary energy expenses each year.
The fix: Consider upgrading to a new, energy-efficient HVAC system featuring advanced variable-speed technology and eco-friendly refrigerants like R-454B. Mauzy offers customized installation solutions designed for San Diego’s climate — helping you save energy and stay cool year after year.
Bonus Tip: Don’t Forget the Bigger Picture
Your HVAC system is just one part of your home’s overall comfort. Electrical inefficiencies, plumbing leaks, and poor insulation can all affect your energy use. With Mauzy’s full-service expertise across heating, cooling, plumbing, and electrical, you can ensure every system in your home works together efficiently.
Why Homeowners Trust Mauzy
As a family-owned, community-rooted company, Mauzy has proudly served San Diego County for decades. Our technicians combine expert craftsmanship with genuine care — offering honest advice, transparent pricing, and long-lasting solutions for every home. Whether you need a simple tune-up, a full system replacement, or help improving indoor air quality, Mauzy has you covered.
Call to Action
Don’t let these common HVAC mistakes drain your wallet.
Call Mauzy today for professional cooling, heating, plumbing, or electrical service anywhere in San Diego County.Need fast, reliable help before summer heat peaks?
Schedule your appointment with Mauzy and experience comfort done right — the smart, efficient way.