HELLA attaches great importance to energy saving and designs its products in such a way, that they are efficient in this field.

3 important terms of energy saving are

• U (U-value): Thermal transfer coefficient in W/(m²K)
  The U-value (former k-value) specifies how much heat capacity flows through a component area of one square metre at a temperature difference of 1 K (1 Kelvin is 1 °C). With regard to the product only.
  
• Psi-value: Linear thermal transfer coefficient in W/(mK)
  The Psi-value specifies how much heat capacity flows through a component with a length of 1 metre at a temperature difference of 1 K (1 Kelvin is 1 °C). Different installation details according to DIN 4108-2.
  
• fRsi: Temperature factor
  Specifies the difference of minimum interior surface temperature to the exterior air temperature/difference of interior temperature to the exterior air temperature ratio.

Saving energy

Sustainable energy efficiency
 

Prevailing outside temperatures find their ways into all buildings. As long as these temperatures are agreeable, we feel comfortable indeed. Heat or the cold, however, need to be locked out. This requires cooling or heating energy. However, thanks to modern building and home technology this energy requirement can be reduced significantly - and hence costs can be lowered. HELLA sun and weather protection products reduce the energy requirement to create a comforting atmosphere by up to 50 %! There is a pleasant side effect: They are thereby protecting our nature.

• Less COOLING ENERGY in the SUMMER

• Less HEATING ENERGY during WINTERTIME

Outdoor Blinds & Venetian Blinds

Heat can enter the living space without hindrance.    The temperature inside the room is unpleasantly high.	The air circulation between outdoor blinds/Venetian blinds and windows largely eliminates heat transfer via convection.
In cold temperatures windows and glass facades function like a thermal bridge: The warm air escapes and it becomes unpleasantly chilly in the living area.	When the outdoor blinds/Venetian blinds are closed, an air cushion is created in front of the glass, which prevents circulation of air. As a result, the warm air stays inside the living area and keeps the cold air outside.

  

 

 

Roller shutters

 

Heat can enter the living space without hindrance.    The temperature inside the room is unpleasantly high.	The air circulation between lengthened roller shutters and windows largely eliminates heat transfer via convection.*
In cold temperatures windows and glass facades function like a thermal bridge: The warm air escapes and it becomes unpleasantly chilly in the living area.	When the roller shutter is closed, an air cushion is created in front of the glass, which prevents circulation of air. As a result, the warm air stays inside the living area and keeps the cold air outside.

*Special feature daylight roller shutter: Light spreads evenly through the room. Heat, cold and noise remain outdoors.

  

 

 

 

Facade Blinds

 

Heat can enter the living space without hindrance.    The temperature inside the room is unpleasantly high.	Special designs provide ideal thermal protection due to a reflective shimmering effect and an aluminium-metallised surface.
In cold temperatures windows and glass facades function like a thermal bridge: The warm air escapes and it becomes unpleasantly chilly in the living area.	When the facade blinds are closed, an air cushion is created in front of the glass, which prevents circulation of air. As a result the warm air stays inside the living area and keeps the cold air mostly outside.

  

 

  

Conservatory - blinds

 

Heat can enter the living space without hindrance.    The temperature inside the room is unpleasantly high.	Perfect UV-protection. Depending on design and the installation situation, a heat transfer can largely be avoided.
In cold temperatures windows and glass facades function like a thermal bridge: The warm air escapes and it becomes unpleasantly chilly in the living area.	When conservatory blinds are closed, an air cushion is created in front of the glass, which prevents circulation of air. As a result the warm air stays inside the living area and keeps the cold air mostly outside.

 

 

Box systems & installation elements

 

HELLA box systems are suitable for low-energy and passive houses and convince with values that are no longer just a dream. The unique, highly-compressed insulating materials exceed the parameters of the standard by up to approx. 60 %. All boxes meet the requirements of the current Building Rules List A, Part 1, and of the energy saving regulations EnEV.