What Is the AC SEER2 Energy Efficiency & Cost Savings Calculator?
Seasonal Energy Efficiency Ratio (SEER) measures the cooling efficiency of air conditioners and heat pumps.
Higher ratings mean less electrical power is needed to produce the same cooling.
How Does the AC SEER2 Energy Efficiency & Cost Savings Calculator Work?
The calculator computes seasonal electrical energy consumption for both units in kWh.
Multiplying by local power cost reveals annual operational spend and net savings.
AC SEER2 Energy Efficiency & Cost Savings Calculator Formula & Variables
The core mathematical equation utilized by this calculator is expressed as:
Annual kWh = (BTU/hr × Hours) ÷ (SEER × 1,000), Annual Savings = (Old Cost) - (New Cost)
SEER is the ratio of total cooling BTU delivered to total electrical Watt-hours consumed over a seasonal period.
How to Use the AC SEER2 Energy Efficiency & Cost Savings Calculator
- Enter AC tonnage size.
- Enter current SEER and target SEER2 rating.
- Specify annual cooling run hours and your electricity rate.
Step-by-Step Example Calculation
3.5-Ton AC Upgrading from 10 SEER to 16 SEER2 (1,200 hrs/yr at $0.16/kWh)
Input Values:
tonnage:3.5
oldSeer:10
newSeer2:16
coolingHoursPerYear:1200
ratePerKwh:0.16
Understanding Your Result
Shows annual savings, 10-year cumulative savings, and percentage energy reduction.
Factors That Affect the Result
- Thermostat programming, duct leakage in unconditioned attics, and regular air filter changes.
When Should You Use This Calculator?
- Evaluating return on investment (ROI) when choosing between different HVAC replacement proposals.
Assumptions & Limitations
- Assumes properly charged and airflow-balanced installations.
Frequently Asked Questions
Calculation Accuracy & Reference Note
Standard AHRI seasonal efficiency calculation formulas.