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Velux Sun Tunnels- Heat Transfer

Natural Sunlight Is As Close As The Roof Over Your Head!

A High Quality Velux Sun Tunnel´┐Ż Comes With A 10 Year Manufacturer's Warranty & Is Built To Last!

Insulated Ceiling Ring & Dual  Diffuser
Prevent energy loss in cold weather

Worried about energy loss through  your Sun Tunnel Skylight?

How Does It  Work?

Installation

  1. Insert the two Diffuser Panels into the Gasket as per the diagram.
  2. Flex the complete assembly and pass through the ceiling  frame opening.
  3. Rest the diffuser assembly on top of the ceiling frame  ring.
  4. Raise one side of the assembly up and let the lower side of  the gasket lip over the inside edge of the ceiling frame .
  5. Pull down the lower ball section of the gasket until you  have worked it around the entire perimeter of the ceiling frame.




Test Results

 

METHOD

SIZE

VALUE
(HrSqFtDegreeF/BTU)

VALUE
(BTU/IIsSqDegreeF)

Heat Flow Down

14"

3.04

0.329

Heat Flow Down

22"

3.06

0.327

Heat Flow Up

14"

2.01

0.498

Heat Flow Up

22"

2.02

0.495

 

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ENERGY STAR qualified products use less energy than conventional products. And money isn't all you're saving by purchasing products that use less energy, you're also helping to save the environment. As an ENERGY STAR partner, Big Frog Mountain is proud to offer you products with the ENERGY STAR label. For more information, visit www.energystar.gov


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Chattanooga, Tennessee 37415
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