Real Answers. Smart Decisions. Total Comfort.
Bea Espino 
A cheap mini split is only a bargain if it stays inexpensive after installation and use. At HVACKnowHow, we judge budget mini splits by total installed cost, model-specific SEER2, warranty terms, serviceability, and fit for the room. Our rule is simple: installation compatibility is part of the product. A slightly higher-priced unit can cost less … Read more
You open the garage in August and it feels like an oven. You come back in January and your fingers go numb before the first cut. Garages swing harder than any room in the house because bare concrete stores heat, most walls carry no insulation, and one door opening dumps everything you just conditioned. Here … Read more
Real Answers. Smart Decisions. Total Comfort. The short answer: The number you want is usually hiding in plain sight. On many air conditioners and heat pumps, the SEER (Seasonal Energy Efficiency Ratio) is encoded in the first characters of the model number on the outdoor unit’s data plate. But that digit is only a nominal … Read more
A heat pump almost always warns you before it quits. The warning might be a back bedroom that never warms up, a new rattle when the unit starts, or a power bill creeping higher for no reason you can name. Most homeowners notice a sign like that and wait, hoping the system sorts itself out, … Read more
By 3pm on a July afternoon, a typical 2-car garage with a south-facing door hits 110°F inside. The slab radiates heat back up at you. Metal door panels feel like a stovetop. If you have searched for how to cool a garage after trying a box fan, an open service door, or a cheap window … Read more
Swap in a fresh MERV 13 filter, and within a week the furnace runs longer while the registers feel weaker. This is one of the most common support calls we see during heating season. The filter with the highest rating on the shelf is not always the filter your furnace can handle. In our side-by-side … Read more
Walk into any big-box HVAC aisle asking about 18000 BTU mini splits, and the floor rep’s first question is whether the room has 230V service. Most living rooms don’t, and that’s where the project usually stalls out at a $1,500 panel and circuit quote. Over the past three summers, we’ve been installing the 115V version … Read more
Forty-nine percent of American homes run on a gas furnace. Most of the people in those homes can name the thermostat brand, but not the AFUE rating of the unit actually producing the heat. That number, and the components behind it, determines what the system costs to run every winter. Most repair bills trace back … Read more
In a small home, winter allergies often feel more intense because the same air circulates through a tighter space, giving dust, dander, and other irritants more chances to build up fast. At HVACKnowHow.com, we look beyond generic filter advice and focus on what actually matters in real homes: filtration strength, airflow balance, system compatibility, and … Read more
Smoke smell indoors usually means the AQI outside crossed 150 hours ago. By the time most Oakland residents notice it, PM2.5 has already been building inside the house, and the window for easy protection has passed. Wildfire air quality data is split across multiple government dashboards, and knowing which one to trust for which purpose … Read more