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Tips to help you breathe easy

HVAC decision guides and honest answers from the team at Rendon Heating & Air — 49 articles helping Northern California homeowners breathe easy.

Learning CenterVacaville, CAVeteran-owned & family-run

Cluster 01

Cooling

AC repair, replacement timing, and keeping cool through 100° valley summers.

Identifying the Source of High Humidity in Your Home When the AC Cycles Off
Sep 23, 2026

Identifying the Source of High Humidity in Your Home When the AC Cycles Off

Mild fall temperatures often cause your AC to cool the house quickly while leaving the air feeling sticky. See why this moisture trap happens and how to fix it without overcooling.

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Evaluating Ductless Mini-Splits for Vacaville Sunrooms Ahead of the Fall Cooldown
Sep 1, 2026

Evaluating Ductless Mini-Splits for Vacaville Sunrooms Ahead of the Fall Cooldown

Keeping your new sunroom comfortable during chilly autumn evenings can overtax your central HVAC system. Find out why a dedicated mini-split is often the smarter choice for temperature control.

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Replacing a Burned-Out Contactor vs. Condemning the Entire AC Unit
Aug 28, 2026

Replacing a Burned-Out Contactor vs. Condemning the Entire AC Unit

When your AC suddenly dies in the late-summer heat, you might be told it needs a full replacement. Don't approve a massive installation without checking this single electrical component first.

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Why Your AC Struggles to Keep Up When the Kids Go Back to School
Aug 27, 2026

Why Your AC Struggles to Keep Up When the Kids Go Back to School

Coming home to a sweltering house after school is a frustrating late-August reality. We explain why sudden 3:30 PM thermostat drops overwhelm your cooling system and how to fix it.

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Diagnosing a Tripped AC Breaker During Vacaville's Late August Heat Spikes
Aug 26, 2026

Diagnosing a Tripped AC Breaker During Vacaville's Late August Heat Spikes

A tripped breaker during a late summer heatwave isn't a random glitch—it's a warning sign of overworked parts. Find out why forcing your system back on can destroy the compressor.

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When Do I Replace My Air Conditioner in Vacaville?
Nov 14, 2025

When Do I Replace My Air Conditioner in Vacaville?

Sometimes, life moves incredibly fast. You could have sworn you just bought your air conditioner. But lately, it doesn’t seem to be working so well.

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3 Health Benefits of Using Your AC While Sleeping
Oct 16, 2025

3 Health Benefits of Using Your AC While Sleeping

A good night’s sleep is essential for your overall health and well-being. Sleep affects everything from your mood and energy levels to your immune system and physical health.

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How Does Your Central Air Conditioner Cool Your Home?
Sep 15, 2025

How Does Your Central Air Conditioner Cool Your Home?

Unless you’re an HVAC professional—like the team at Rendon Heating & Air you probably don’t spend much time thinking about your air conditioner or how it works.

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Prepare for Hot Weather With an Air Conditioning Tune-Up
Jul 15, 2025

Prepare for Hot Weather With an Air Conditioning Tune-Up

According to the U.S. Department of Energy, central air conditioning systems have a service life of approximately 15 to 20 years.

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Common AC Problems and Solutions
Jun 16, 2025

Common AC Problems and Solutions

When the weather gets really hot in Fairfield, the last thing you want is a broken air conditioner; a fully functioning air conditioner is more than a luxury—it’s a necessity. However, even the best systems can encounter problems that disrupt your comfort.

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Spring AC Maintenance Tips
May 15, 2025

Spring AC Maintenance Tips

Spring is finally arriving in California! The days are getting longer, the flowers are blooming, and you’re probably already thinking about dusting off the patio furniture or tackling that messy garage.

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Why Is My AC Blowing Hot Air?
Mar 13, 2025

Why Is My AC Blowing Hot Air?

It’s a hot day outdoors, and you are inside your Fairfield home waiting for your air conditioning (AC) system to kick into full gear.

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Cluster 02

Heating & Furnaces

Furnace warning signs, tune-ups, and staying warm through tule-fog winters.

Upgrading Single-Pane Windows vs. Installing a Higher Capacity Heating System
Oct 2, 2026

Upgrading Single-Pane Windows vs. Installing a Higher Capacity Heating System

If your home feels drafty despite the heat running, a bigger furnace might not be the answer. See why sealing your envelope often beats buying a larger unit.

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Why Your Gas Furnace Short-Cycles After Running Perfectly for Ten Minutes
Oct 1, 2026

Why Your Gas Furnace Short-Cycles After Running Perfectly for Ten Minutes

When your heater shuts off after ten minutes of normal operation, it often points to a delayed sensor drop or restricted airflow. Here is how to determine if it requires a professional fix.

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Scheduling a Pre-Season Furnace Test Before the First Real Solano County Frost
Sep 30, 2026

Scheduling a Pre-Season Furnace Test Before the First Real Solano County Frost

Waiting for November's freezing temperatures to test your heat can leave you stranded with backordered parts. See why a September test run is your best defense against a cold house.

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Gas Furnace Ignitor Replacement vs. Upgrading to a Modern Electronic Ignition System
Sep 24, 2026

Gas Furnace Ignitor Replacement vs. Upgrading to a Modern Electronic Ignition System

If your furnace is clicking but failing to light during early fall test runs, you face a choice: patch the spark module or retrofit a reliable hot surface ignitor.

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The Financial Case for Proactive Air Duct Sealing Before Winter Heating Bills Arrive
Sep 17, 2026

The Financial Case for Proactive Air Duct Sealing Before Winter Heating Bills Arrive

Your furnace is only as effective as the ductwork delivering its air. Compare Aeroseal and mastic sealing methods to stop hidden attic heat loss this fall.

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The Hidden Danger of Running a Gas Furnace With a Clogged Summer AC Filter
Sep 10, 2026

The Hidden Danger of Running a Gas Furnace With a Clogged Summer AC Filter

Switching your thermostat to heat on the first chilly fall morning only to have the system shut down is alarming. A forgotten summer filter often triggers this safety lockout.

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Upgrading to a Two-Stage Gas Furnace for Solano County's Unpredictable Autumns
Sep 7, 2026

Upgrading to a Two-Stage Gas Furnace for Solano County's Unpredictable Autumns

Tired of your home freezing in the morning and roasting ten minutes after the heat kicks on? A two-stage system provides gentle, even heating perfectly suited for mild Vacaville fall days.

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How Do I Know I Have a Cracked Heat Exchanger?
Jan 15, 2026

How Do I Know I Have a Cracked Heat Exchanger?

Our experienced furnace repair technicians will inspect and diagnose your furnace issue and resolve the concerns you are having.

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Schedule Your Annual Furnace Inspection Now
Dec 15, 2025

Schedule Your Annual Furnace Inspection Now

What’s at the top of your fall to-do list in Dixon? Make sure it is your furnace.

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What’s That Smell Coming From My Furnace?
Jan 15, 2025

What’s That Smell Coming From My Furnace?

If your furnace is producing a strange smell, you should always treat it with caution. While the cause for the odor may be benign, it could just as easily be harmful to inhale. When in doubt, always open windows to ensure ventilation, and evacuate your Vacaville home.

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Why Is the Furnace Pilot Light Going Out?
Nov 15, 2024

Why Is the Furnace Pilot Light Going Out?

Your utility bills, along with repairs, start creeping up. At some point, it makes more sense financially to replace these old appliances with newer models. When the time comes, Rendon Heating & Air, Inc. can help you make the right decision. We install, replace, repair, and maintain all major brands of heating equipment.

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Cluster 04

Air Quality

Filtration, purification, thermostats, and the air your family breathes.

Why Your Smart Thermostat Thinks It's 75 Degrees When You're Freezing
Sep 29, 2026

Why Your Smart Thermostat Thinks It's 75 Degrees When You're Freezing

If your living room feels like an icebox but your digital display reads perfectly warm, you likely have a hidden wall draft. Find out how to fix this sensor issue before winter arrives.

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What Happens When Your Thermostat Loses Communication With Your Zone Board
Sep 18, 2026

What Happens When Your Thermostat Loses Communication With Your Zone Board

A glowing thermostat with silent vents usually points to a communication breakdown. Find out if your zone control board is failing and when to bring in a professional.

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Standalone HEPA Purifiers vs. Whole-House IAQ Systems for Wildfire Smoke
Sep 11, 2026

Standalone HEPA Purifiers vs. Whole-House IAQ Systems for Wildfire Smoke

When September wildfire smoke rolls in, a single room purifier often isn't enough. Discover whether portable units or an integrated HVAC scrubber is right for your home.

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Does an AC Kill Mold?
Aug 15, 2025

Does an AC Kill Mold?

Your air conditioner (AC) can do several things––keep your California home’s indoor air cooler than outdoor temperatures, help to keep indoor airborne allergens at bay, and help keep your home’s humidity low. But one thing it can’t do is kill mold.

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Thermostat 101 Basics
Apr 15, 2025

Thermostat 101 Basics

You can trust our team at Rendon Heating & Air, Inc. to always add value and comfort to your California home or business throughout the year. We offer practical solutions designed to extend the service life and operating efficiency of your HVAC system—including your thermostat.

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Improve Your Home’s Indoor Air Quality
Feb 14, 2025

Improve Your Home’s Indoor Air Quality

Stand outdoors on one of those days when the weather feels perfect, take a few deep breaths, and enjoy the fresh air. Later, take another deep breath—only inside your California home. How does it compare?

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