Hoval CASER (= Computer Aided Selection of Energy Recovery) makes designing Hoval energy recovery systems quick and simple.

Efficiency range for the condensation rotor completed with new shaft heights
Volumetric current 20% greater with the same pressure drop with Hoval Enventus Krivan
New output values with best ratio between efficiency and pressure drop
Quicker calculation with preferential data through self-defined default values

Selection program for energy recovery systems

  • Reliable design data thanks to certified data (Eurovent, TÜV)
  • Exact calculation of a specific Hoval plate heat exchanger or rotary heat exchanger
  • Calculation of all appropriate Hoval heat recovery systems for a specific project
  • Calculation of the efficiency class according to EN 13053
  • Calculation mode “73 air” according to the Ecodesign Directive ErP 1253/2014 (only for plate heat exchangers, for explanation see 1.3)
  • Frost limit (only for plate heat exchangers)
  • Pressure drop increase due to pressure difference (only for plate heat exchangers)
  • Calculation of the leakage figure according to Eurovent (for rotary heat exchangers only)
  • Calculation of the new coefficient of performance OACF (Outdoor Air Correction Factor) and EATR (Exhaust Air Transfer Ratio); for rotary heat exchangers only
  • Simplified ordering process with optimised type codes
  • Price calculation
  • Languages: English, Deutsch, Italiano, Turkce, Svenska, Slovencina, Français, Chinese

Minimum computer requirements

Processor 1 GHz or faster x86- or x64-bit processor
Memory 1 GB RAM (32-bit) or 2 GB RAM (64-bit)
Hard disk 100 MB available
Display 1024x768 or higher resolution monitor
Windows 7 (32- or 64-bit)
Windows 8 (32- or 64-bit)
Windows 8.1 (32- or 64-bit)
Windows 10 (32- or 64-bit)
Not executable with Windows Vista

Improvements with Hoval CASER


  • You can now calculate the price without thermodynamic data
  • Chinese has been added as a user language
  • The value “ErP 2016” is no longer issued in the results table
  • Hygiene certification by the Ruhr District Institute of Hygiene, corresponding logo available on the printout

Plate heat exchangers

  • Hoval Krivan in sizes 085 und 100 with new plate spacing options / efficiencies P1 and P3
  • The “Design S” option has been changed to “Design K + S”. The results table displays both designs (design S and Krivan)
  • The “All designs” option is now located on the right
  • The “ErP designs 73 air” option has been added
  • New output value “ΔpHRS” is issued in the results table and in the DLL application
  • You can calculate data with very low air velocities (from 0.1 m/s)

Rotary heat exchangers

  • The additional shaft height “M” (1.8 mm) has been added for condensation rotor ST1