How much does HVAC replacement cost in San Diego?
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HVAC replacement costs in San Diego: Central AC only: $5,000-$10,000. Furnace only: $3,000-$7,000. Full HVAC system: $8,000-$18,000. Heat pump system: $7,000-$15,000. High-efficiency and variable-speed systems cost 30-50% more but save on energy bills.
How long does an HVAC system last?
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Average lifespans: Central AC: 15-20 years. Gas furnace: 15-25 years. Heat pump: 12-17 years. Ductless mini-split: 15-20 years. San Diego's mild climate means less wear than extreme climates, potentially extending lifespan.
Should I repair or replace my HVAC system?
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Replace if: system is over 15 years old, repair cost exceeds 50% of replacement, R-22 refrigerant (phased out), frequent breakdowns, or energy bills are rising. Repair if: system is under 10 years old, minor issue, and good maintenance history. Use the 5,000 rule: if age x repair cost > $5,000, replace.
What size HVAC do I need?
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HVAC sizing is based on your home's square footage, insulation, windows, and local climate. In San Diego: 1,000-1,500 sq ft: 2-2.5 ton. 1,500-2,000 sq ft: 2.5-3 ton. 2,000-2,500 sq ft: 3-3.5 ton. A proper Manual J load calculation ensures correct sizing — oversized units waste energy and cause humidity issues.
Are heat pumps worth it in San Diego?
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Yes! San Diego's mild climate makes heat pumps extremely efficient here. They provide both heating and cooling, with 300-400% efficiency in our climate (vs 95% for gas furnaces). California rebates and federal tax credits can offset $2,000-$8,000 of the installation cost.