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    HVAC Maintenance

    $8 filter changes save $5K replacements.

    Filter changes (CRITICAL)

    • Replace every 1-3 months.
    • Standard 1" filters monthly.
    • 4-5" pleated filters every 6-12 months.
    • MERV 8-11 best (higher = airflow problems).
    • Set phone reminder.
    • Subscribe + Save on Amazon — auto-deliver.
    • Dirty filter = AC works harder = breaks faster.

    Annual professional service

    • Spring — AC tuneup ($100-200).
    • Fall — heating tuneup ($100-200).
    • Annual service contract often $200-300/yr.
    • Detects problems before failure.
    • Cleans coils + checks refrigerant.
    • Many include 24/7 emergency service.
    • Extends life 5-10+ years.

    DIY simple tasks

    • Clear leaves/debris from AC condenser outside.
    • Trim plants 2-3 ft from condenser.
    • Hose off AC fins gently.
    • Vacuum vent registers monthly.
    • Test smoke + CO detectors.
    • Replace thermostat batteries yearly.
    • Drain pan empty + clean if visible.

    When to call pro

    • Strange noises (banging, screeching).
    • Burning smell.
    • Not cooling/heating effectively.
    • Water around indoor unit.
    • Ice on outdoor unit.
    • Bills suddenly higher.
    • Frequent on/off cycling.
    • Don't DIY refrigerant — illegal + dangerous.

    Lifespan + replacement

    • Furnace 15-30 years.
    • AC 10-15 years.
    • Heat pump 10-15 years.
    • Replace BEFORE failure if 15+ years (avoid emergency $).
    • Energy Star units save 20-30% bills.
    • Heat pumps now eligible for $2,000+ federal tax credits.
    • Get 3 quotes for replacement.

    Save on bills

    • Smart thermostat (Nest, Ecobee) — saves 10-15%.
    • Set 78°F summer, 68°F winter (when home).
    • Programmable schedules — adjust when out.
    • Ceiling fans + AC = lower temp comfortable.
    • Insulate attic — biggest energy waster.
    • Energy audit free from utility company.

    LIHEAP if cost issue

    LIHEAP (Low Income Home Energy Assistance Program) — federal program. Pays utility bills for income-eligible. Many seniors qualify. Apply at your state's social services office. Also Weatherization Assistance Program — free insulation, weather stripping, HVAC repair. liheap.acl.gov.