Return On Investment

The ventilation of buildings significantly adds to the total amount of heat loss. However, constant air exchange is required to introduce fresh air to maintain a comfortable and healthy indoor climate. The heat loss can be reduced when the heat from the exhaust air is transferred to the supply air.

Whereas the savings in commercial and residential ventilation applications might be easier to grasp, industrial ventilation applications also offer many ways to profit from otherwise wasted heat. Consequently, a heat exchanger is almost always a beneficial investment – regardless of whether the exchanger is a rotary or a plate heat exchanger.

All our models save sufficient energy to provide short amortization periods and valuable savings.

In Heatex Select Online, you will find a Return on Investment Calculator that approximately indicates the payback amount, time, and energy saved by installing a Heatex air-to-air heat exchanger. It features rotary and plate heat exchangers and is under the “Summary” tab at the end of the calculation process. Below, you’ll find a brief tutorial on calculating the return on investment of a Heatex air-to-air heat exchanger in Heatex Select Online. This Calculator is exclusively available in Heatex Select Online.

1. Go to Heatex Select Online.
2. Select a heat exchanger.
3. Enter your specified conditions for the supply and exhaust air (both winter and summer) under Air Data in the first step of the calculation (Performance Calculation).
4. Enter your Product Data.
5. Click Calculate Performance.
6. Review the Performance Results.
7. Click Go to Options.
8. Choose your options.
9. Click Generate Product Code.
10. Click on the blue bar that says Return On Investment Calculator.
11. Choose a geographical location.
12. Enter Service hours,  Service days, Service weeks, Heat exchanger price, Energy cost of heating, and Energy cost of cooling.
13. Click Calculate.
14. Include the result in your printout by checking the box Include return on investment calculation.

Key results are the Total yearly energy reduction, Yearly Savings, and the Payback Period.

You will also find an estimation of CO₂ emission reduction based on the energy saved by the heat exchanger.

Under Installed Heating/ Cooling Power, we compare the required heating and cooling coil capacity. Under Energy Usage, we compare annual energy demand with and without an air-to-air heat exchanger.

The corresponding graphs support the numbers visually and make it easier to grasp the results.

Note that the heat exchanger price is required to calculate payback time. Otherwise, the result is limited to energy savings only.

Heat exchanger price also can be considered the total cost investment, thus, payback is calculated for the entire system.

The combustion of fossil fuels contributes to the increasing amount of CO2 in the atmosphere. Higher concentrations of CO2 in the atmosphere add to the greenhouse effect and increase the average temperature on Earth.

The higher average temperature on Earth will eventually melt the polar ice caps, increase the ocean level, cause climate change, etc.

Heatex contribution to the reduction of CO₂ by crossflow and rotary heat exchangers totals approx. 7.000.000 tons CO₂ / year.

This is equivalent to the pollution from 2.500.000 Cars!

Total CO₂ reduction by the installed base of Heatex rotary heat exchangers:

* Model E, wheel diameter: 1500 mm, well height: 2 mm, width: 200 mm.

Total CO₂ reduction by the installed base of Heatex plate heat exchangers:

* Model H2, plate size: 750 mm, well height: 2,1 mm, width: 718 mm.