Trusted HVAC Solutions for Every Home.
Last summer a homeowner in Albuquerque called us after her daughter had three asthma attacks in two days. The windows had been closed. The AC was running. She had no idea her area’s AQI hit 178 the night before, or that her builder-grade filter was pulling smoke straight through the system and into every room. … Read more
My Verdict at a Glance I’ve written a lot about air filters for NovalHVAC, and the 20x25x4 category is one I return to often — not because it’s flashy, but because it’s genuinely misunderstood. Homeowners either dismiss it as a niche product or assume it’s a straight upgrade over any thinner filter. Neither is quite … Read more
Here at NovalHVAC, we talk to homeowners every single day who stand in front of their HVAC return vent holding two filters side by side, genuinely unsure which one to grab. It is one of the most common questions we get, and it is a good one. A 20x23x2 MERV 8 air filter captures larger … Read more
California wildfires don’t just burn landscapes — they push fine particulate smoke into homes thousands of miles away. In our work at NovalHVAC.com, our certified technician team has seen firsthand how wildfire smoke events affect indoor air quality for homeowners well beyond the fire lines — driving up HVAC filter demand, clogging systems faster, and … Read more
Rising energy bills and reduced airflow often trace back to one overlooked component: your heat pump’s air filter. At NovalHVAC, we’ve serviced thousands of air handler units and can tell you from hands-on experience that filters are almost always located either inside the air handler cabinet near the blower motor or behind the return air … Read more
Yes—a clean 8x20x2 air filter can cut your energy costs by 5-15%, but based on our experience servicing Central Florida homes, most homeowners don’t realize their “clean” filter is actually choking their system until we pull it out during service calls. Here’s what we’ve learned after diagnosing thousands of HVAC systems in Mount Dora, Clermont, … Read more
Weak airflow, strange grinding sounds, or a furnace that runs but never actually heats your home — these are the telltale signs your blower motor is failing. And right now, you’re facing a decision that could cost you anywhere from $150 for a targeted repair to $1,800 or more for a full replacement. Here’s what … Read more
When mold is hidden behind a wall, an air purifier may lower the number of spores circulating in your home—but it will never resolve the source driving the problem. Based on real-world HVAC assessments and indoor air evaluations performed by NovalHVAC.com, this guide breaks down what air purifiers actually change, where their effectiveness stops, and … Read more
Central Florida’s year-round humidity creates a perfect breeding ground for mold — and most homeowners do not realize their indoor air can carry thousands of mold spores per cubic meter without a single visible sign. At NovalHVAC.com, our certified technicians have diagnosed mold-related air quality issues in homes across Mount Dora, Clermont, DeLand, and surrounding … Read more
Most air filter guides skip over electret technology entirely. That’s a problem, because it’s the reason some filters outperform others at the same MERV rating. An electret filter uses a permanent static charge woven into its fibers to actively attract particles like dust, pollen, and pet dander rather than just waiting for them to get … Read more