If you live in a 3,000+ sq ft custom home in Quartz Hill, your electricity bill in July can easily hit $800 or $1,000. Many homeowners ask us: "Should I spend the extra money on a high-efficiency system?"
The answer is almost always yes, but let's look at the numbers.
Standard (Single-Stage) vs. Premium (Variable Speed)
A standard 14 SEER2 unit runs at 100% capacity whenever it is on. It's like driving your car with your foot floored on the gas pedal, then slamming the brakes.
A variable speed (inverter) unit can ramp up and down, running at 30% or 50% capacity to maintain temperature. This is crucial for Quartz Hill's 105°F days.
The Cost Breakdown
- Standard System (5-Ton): Typically $11,000 - $14,000 installed.
- High-Efficiency Inverter (5-Ton): Typically $16,000 - $22,000 installed.
The ROI
While the upfront cost is $5k-$8k higher, a variable speed system can save $150-$200 per month on electricity during the summer. Over 10 years, the system pays for the difference—plus, you get significantly better comfort and quieter operation.
Related: Repair vs. Replace Calculator
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