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How to choice ventilation system?

Heat exchangers might be devided to recuperators and regenerators. Recuperators are conventional heat exchangers, regenerators - periodic-flow devices.

Recuperators are conventional heat exchangers in which hot and cold gases flow steadily on opposite sides of a solid (usually metal) wall. Regenerators are periodic-flow devices. Fluid streams flow in opposite directions through passages in a wheel with heat storage walls. The wheel rotates, transferring heat from one stream to the other. Regenerators usually use a nest of very small parallel passages oriented axially on a wheel which rotates.

Recent improvements to technology have allowed recuperators to recover 90-95% of the waste heat, so there is no need to heat air which is supplied to room, there is less heat loss.

The main parameter for HRV - efficiency. This parameter informs about how much heat HRV returns back and how much it gives away. The lower efficency is, the higher power of heater must be.

One more immportant parameter - fan power. You gain cheaper exploitation when fan power is lower.


Heat recovery ventilation
Renovent Excellent 180 Renovent Excellent 300 Renovent Excellent 400
Ventilation capacity at 150 Pa [m3/h]
max. 180 max. 300 max. 400
Total power input [W]
18 - 86 9 - 66,2 8,6 - 98
Rated power at 150 Pa [W]
46 at 125m3/h 40 at 210m3/h 64 at 280m3/h
Dimension duct connection [mm]
Ø125 Ø160 Ø180
Height [mm]
600 765 765
Width [mm]
560 677 677
Depth [mm]
302 564 564
Weight [kg]
25 38 38
Heat recovery rate max [%]
95 95 95
Constant Flow
Standard Bypass
Standard preheater
Connection provisions for external preheater
Connection provisions for humidity sensor
Connection provisions for 2-zone demand flow
Connection for timer
Also available as PLUS version
Heat recovery ventilation
Renovent Sky 150 Renovent Sky 300
Ventilation capacity at 150 Pa [m3/h]
max. 150 max. 300
Total power input [W]
8,7 - 77,8 11 - 72
Rated power at 150 Pa [W]
* 51 at 210m3/h
Dimension duct connection [mm]
Ø125 Ø150/Ø160
Height [mm]
200 310
Width [mm]
660 644
Depth [mm]
1000 1185
Weight [kg]
24,5 37
Heat recovery rate max [%]
95 95
Constant Flow
Standard Bypass
Built-in preheater
Connection provisions for external preheater
Connection provisions for humidity sensor
Connection provisions for 2-zone demand flow
Connection for timer
Version PLUS

If You are unsure or You need advice, just contact us, so we may help!

  

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