Exalt Air Efficiency Calculator

Compare efficiency ratings and heating systems

Higher SEER2 ratings mean lower energy costs. For older systems (pre-2023), multiply SEER by 0.95 to get SEER2 equivalent.

Calculate Your Savings

System Tonnage
Current SEER2 Rating
10
Min: 8 Max: 20
New SEER2 Rating
18
Min: 13 Max: 30
Illinois minimum: 13.4 SEER2
Electricity Rate
$ / kWh
Illinois average: $0.18/kWh
Equivalent Full-Load Cooling Hours
hours
Illinois: 600 EFLH (~1,000 actual runtime hours). Miami = 1,500+, Phoenix = 2,000+

Your Annual Cooling Savings

$0
Per Year

System Comparison

Current System
$0
Annual Cost
New System
$0
Annual Cost
Timeframe Current System New System Savings
Annual $0 $0 $0
10 Years $0 $0 $0
20 Years $0 $0 $0

Visual Comparison

Calculation Debug Info

Run a calculation to see debug information.

Compare your current heating system to a new furnace or heat pump. NEW: Accurate heat pump costs based on Illinois climate data and temperature bin analysis.

Calculate Your Heating Savings

Home Square Footage
sq ft
Enter your home's heated square footage
Recommended Heating Capacity
80,000 BTU/hr
BTU per Sq Ft
40 BTU/sq ft
Current Heating System BTU Input
BTU/hr
Check your current system's nameplate for BTU input rating
Climate Zone
Heating Degree Days (base 65°F) - measures actual heating demand
Current Fuel Type
Current System Efficiency
AFUE rating - check your furnace nameplate
Current Natural Gas Rate
$ / therm
Illinois average: $0.40-0.60/therm

New System Options

New System Type
New Furnace BTU Input
BTU/hr
BTU input rating of new furnace system
New Fuel Type
New Furnace Efficiency
Higher AFUE = lower fuel costs
New Natural Gas Rate
$ / therm
Illinois average: $0.40-0.60/therm
Electric Heat Strip Capacity
kW
15 kW = 51,180 BTU/hr
3,412 BTU per kW | Max residential: ~20 kW
Electric air handlers use resistance heating (100% efficient but expensive to operate).
Heat Pump Heating Capacity
Heat pump heating capacity at 47\'b0F - 12,000 BTU/hr per ton
Heat Pump HSPF2 Rating
8.0
Min: 7.0 Max: 13.0
Higher HSPF2 = more efficient heating. Illinois minimum: 7.2 HSPF2
Backup Heat Switchover Temperature
25\'b0F
Min: 10\'b0F Max: 40\'b0F
Temperature when system switches to backup heat
Backup Heat Source
Backup System BTU Input
BTU/hr
BTU input rating of backup furnace
Backup Furnace Efficiency
Gas Rate (Backup)
$ / therm
Illinois average: $0.40-0.60/therm
Backup Electric Heat Strip Capacity
kW
15 kW = 51,180 BTU/hr
3,412 BTU per kW
Heat pump calculations use Illinois temperature bin analysis to accurately model performance across the heating season. System automatically switches between heat pump and backup based on outdoor temperature.
Electricity Rate
$ / kWh
Illinois average: $0.18/kWh (for heat pump or electric heat)

Your Annual Heating Savings

$0
Per Year

System Comparison

Current System
$0
Annual Cost
New System
$0
Annual Cost

Heat Pump System Breakdown

HP % of Load
0%
Backup % of Load
0%
Heat Pump Cost
$0
Backup Cost
$0
Avg Seasonal COP
0.0
Total kWh (HP)
0
Timeframe Current System New System Savings
Annual $0 $0 $0
10 Years $0 $0 $0
20 Years $0 $0 $0

Visual Comparison

Calculation Debug Info

All System Options Comparison

See how different heating systems compare based on your heating load and usage. Click any card to expand details.

System Type Efficiency Annual Cost 10-Year Cost 20-Year Cost
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