HVAC Guides from Modern Air
Plain-English answers from a family-run South Bay HVAC contractor. What systems cost, which rebates are real, and what the fine print means before you sign anything.
Furnace Tune-Up Season in San Jose: Why Early Fall Is the Time to Book
Early fall is the best time for a furnace tune-up in San Jose. What a real tune-up covers, the warning signs to watch, and why timing matters.
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Wood Burning Ban Days Are Getting More Common in the Bay Area
The Bay Area lowered its no-burn trigger in October 2025, so alerts come more often. What is banned, what is exempt, and what to heat with instead.
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Bay Area Furnace Rules Are Changing: What the Zero-NOx Rule Means
The Bay Area is not banning your gas furnace. Zero-NOx applies to furnaces made from January 1, 2029. What South Bay homeowners should plan for now.
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Why Your AC Is Running But Not Cooling: 7 Causes and Fixes
AC running but not cooling? The 7 usual causes, which two you can fix yourself, and when to turn the system off and call a technician.
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Heat Pump vs Gas Furnace in California: What Decides the 10-Year Cost?
At California energy prices, gas usually heats cheaper per unit. Here is what actually decides the 10-year cost of a heat pump versus a gas furnace.
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Ductless Mini-Split vs Central AC: Which One Actually Fits Your Home?
Mini-split or central AC? A straight factor-by-factor comparison for South Bay homes: ductwork, zoning, duct losses, upfront cost, and when a hybrid wins.
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7 Things San Jose Businesses Should Check Before Signing an HVAC Maintenance Contract
Seven things San Jose businesses should check before signing a commercial HVAC maintenance contract: scope, exclusions, schedule, response time, and more.
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California Heat Pump Rebates in 2026: What You Can Still Get
What South Bay homeowners can actually get from heat pump rebates in 2026, TECH Clean California, utility programs, and the closed federal 25C credit.
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The Federal Heat Pump Tax Credit in 2026: What Changed
What happened to the federal heat pump tax credit in 2026? The 25C credit expired after 2025. The honest status for South Bay homeowners.
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How Much Does a New HVAC System Cost in the Bay Area?
What does a new HVAC system cost in the Bay Area? See the factors that drive the price, 2026 rebates, and financing options from Modern Air in Morgan Hill.
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How to Choose an HVAC Contractor: A 10-Point Checklist
How to choose an HVAC contractor: a 10-point checklist covering licensing, load calculations, written quotes, and the red flags to avoid in the South Bay.
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How to Compare Heat Pump Quotes (and Why They Vary So Much)
Three heat pump quotes, three prices? Here is how to compare South Bay bids line by line and pick the right install, not just the cheapest.
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