Heat Recovery Air Energy Estimate Calculator
The Heat Recovery Air Energy Estimate helps estimate W in the context of home comfort. It uses the specific input quantities Air volume flow m³/h, Temperature difference K and Heat recovery efficiency % rather than relying on a generic percentage or a hidden default. Enter measurements with the units displayed next to each field, and compare the calculated result with the worked example below. Assumes air density 1.2 kg/m³ and heat capacity 1.005 kJ/(kg K). It runs locally in the browser; no personal account or server calculation is required.
How to use this calculator
- Enter Air volume flow m³/h using the stated units, then confirm the number reflects your own situation.
- Enter Temperature difference K using the stated units, then confirm the number reflects your own situation.
- Enter Heat recovery efficiency % using the stated units, then confirm the number reflects your own situation.
- Review the displayed result and the stated limitation before using it in a real plan.
Heat Recovery Air Energy Estimate equation and assumptions
Air volume flow m³/h*1.2*1.005*Temperature difference K*Heat recovery efficiency %/100/3.6 → W
- The equation combines Air volume flow m³/h, Temperature difference K, Heat recovery efficiency % in the order shown and returns W.
- Assumes air density 1.2 kg/m³ and heat capacity 1.005 kJ/(kg K).
Worked examples
Worked example: Heat Recovery Air Energy Estimate
Try these values: Air volume flow m³/h = 100, Temperature difference K = 10, Heat recovery efficiency % = 75.
Evaluate Air volume flow m³/h*1.2*1.005*Temperature difference K*Heat recovery efficiency %/100/3.6 with the example values.
The calculated result is approximately 251.25 W. Change the input values to explore a different scenario.
Understanding the result
The output is expressed in W, using the input values you supplied.
Assumes air density 1.2 kg/m³ and heat capacity 1.005 kJ/(kg K).
Important notes
Assumes air density 1.2 kg/m³ and heat capacity 1.005 kJ/(kg K).
Treat this as a planning or explanatory estimate. Check constraints, units, and real-world data where precision matters.
Frequently asked questions
What does the Heat Recovery Air Energy Estimate calculate?
It calculates W using Air volume flow m³/h, Temperature difference K, Heat recovery efficiency %. The example inputs produce approximately 251.25 W.
Which assumptions should I check?
Assumes air density 1.2 kg/m³ and heat capacity 1.005 kJ/(kg K).
How can I compare options?
Change one input at a time and compare the results, keeping units consistent and checking realistic operating ranges.
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This page provides a calculation tool plus explanatory information so you can understand what the result means and when the underlying method may not fit your situation.