1. What is SEER Comparison?

SEER (Seasonal Energy Efficiency Ratio) comparison helps determine the efficiency difference between two HVAC systems. The cost ratio indicates how much more efficient one system is compared to another.

2. How Does the Calculator Work?

The calculator uses the SEER comparison formula:

Where:

• \( \text{Old SEER} \) — Efficiency rating of current system (BTU/Wh)
• \( \text{New SEER} \) — Efficiency rating of proposed system (BTU/Wh)

Explanation: A lower cost ratio indicates greater efficiency improvement. For example, a ratio of 0.8 means the new system is 20% more efficient.

3. Importance of SEER Comparison

Details: Comparing SEER ratings helps homeowners and businesses make informed decisions about HVAC upgrades, estimate potential energy savings, and calculate return on investment for efficiency improvements.

4. Using the Calculator

Tips: Enter both SEER ratings in BTU/Wh. Higher SEER values indicate more efficient systems. Typical residential systems range from 13-25 SEER.

5. Frequently Asked Questions (FAQ)

Q1: What does SEER measure?
A: SEER measures cooling efficiency - the amount of cooling output (BTU) per unit of energy input (watt-hour) over a typical cooling season.

Q2: What is a good SEER rating?
A: Modern systems typically range from 14-25 SEER. Higher ratings indicate better efficiency. The minimum standard is 13 SEER in many regions.

Q3: How much can I save with a higher SEER system?
A: Savings depend on climate, usage patterns, and electricity rates. Generally, each SEER point increase can save 5-7% on cooling costs.

Q4: Are there rebates for high SEER systems?
A: Many utility companies and government programs offer rebates for installing high-efficiency systems, typically those with SEER 16 or higher.

Q5: Does SEER affect heating efficiency?
A: No, SEER specifically measures cooling efficiency. Heating efficiency is measured by HSPF (Heating Seasonal Performance Factor) for heat pumps.