Why Heat and Energy Recovery?
By recovering heat, energy consumption is reduced. This leads to lower costs and decreases the use of coal, natural gas, and other fossil fuels, ultimately reducing carbon dioxide emissions.
Heat Recovery Ventilation with Maximum ROI
Building ventilation is essential for maintaining a healthy indoor climate, but it also significantly increases total heat loss. By integrating air-to-air heat exchangers, this energy loss can be minimized by transferring heat from exhaust air to incoming fresh air—improving efficiency without compromising comfort.
While the benefits of residential and commercial ventilation are well known, industrial applications offer equally strong opportunities to recover otherwise wasted energy. In most cases, installing a heat exchanger—whether rotary or plate—is a highly cost-effective investment with short payback times and long-term savings.
All Heatex heat exchanger models are designed to deliver substantial energy savings and fast amortization.
With Heatex Select Online, you can easily evaluate your investment using the built-in Return on Investment (ROI) Calculator, providing clear estimates of:
- Payback period
- Energy savings
- Cost savings
This enables informed decision-making based on real operational impact.
Calculate Return On Investment
In Heatex Select Online, the return-on-investment calculator becomes available once you have calculated the performance results for a specific product configuration.
Follow the steps below to calculate the ROI for a rotary or plate heat exchanger.
- Go to Heatex Select Online
- Select Rotary or Plate Heat Exchangers
- Enter your Air Data and Product Configuration
- Click Calculate
- Click Calculate ROI
- Enter the Geographical Location
- Change any data necessary
- Click Calculate ROI
- Click Include in PDF (optional)
- Click Export PDF (optional)
Calculate ROI & CO₂
Calculate both ROI and CO₂ emissions directly in Heatex Select Online—giving you clear insights into cost savings and environmental impact.
Calculate with Heatex Select
Return On Investment Results
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 capacities. Under Energy Usage, we compare annual energy demand with and without an air-to-air heat exchanger.
The corresponding graphs visually support the numbers, making it easier to understand the results.
Note that the heat exchanger price is required to calculate payback time. Otherwise, the result is limited to energy savings only.
The heat exchanger price can also be considered the total investment cost; thus, payback is calculated for the entire system.
Transparent CO₂ Emissions Calculation
Heatex Select Online also provides detailed CO₂ emissions data for each product configuration, offering valuable insight into environmental performance.
The calculations include:
- Material impact (e.g., steel, aluminum proportions)
- Manufacturing processes
- Transport (including 1,000 km of truck transport)
- Energy use and maintenance
For example, plate heat exchangers typically consist of 17–34% steel and 66–83% aluminum, while rotary heat exchangers often have an even higher aluminum share.
Each material’s weight is multiplied by its CO₂ factor to generate accurate emissions data.
Although material-related emissions can be significant, the energy savings achieved during operation far exceed the initial environmental impact, making heat recovery a key contributor to sustainable HVAC system design.
All CO₂ results are clearly presented in the Summary section of Heatex Select Online and are also accessible via our DLL for integration into your systems.
This transparency helps AHU manufacturers and engineers:
- Optimize product selection
- Reduce environmental impact
- Meet sustainability and climate targets.
- Build trust with customers and stakeholders.
Start optimizing today – visit Heatex Select Online or request access to our DLL/API to calculate savings, performance, and CO₂ impact for your next project.