Below you will find some general information about the construction and fixing of our panels as well as a Sizing Diagram, a Panel Height Diagram, and an Emissions Chart. You can also download an Absorption Graph and Output Graph as Microsoft Excel files for customised use in your own projects.

Absoption Graph.xls

Output Graph.xls

To download the graphs as an Excel file follow these instructions:

1. Click-and-hold (Win95/98 users right-click) on the appropriate link above.

2. From the menu that appears, choose 'Save Link As...', 'Save Target As...' or 'Download Link to Disk'.

3. Choose where you'd like to save the image. Click 'Save' (if asked to save as either 'text' or 'source', choose 'source').

The tables below can be used as a guide to help develop your design. If you require any detailed assistance, please contact the London office.

GENERAL INFORMATION
This Chart is for use with plain horizontal surfaces looking up, i.e. Panels in Floors. For vertical plain surfaces deduct from the convection figure as follows:- Up to 300mm above FFL = Nil, 300 to 600mm = 10%, Above 600mm = 20%. For horizontal plain surfaces looking down, i.e. ceilings, deduct 50% from the convection figure. These figures are based on still air conditions. In certain circumstances, particularly in floor warming, the emission by convection may be increased by as much as 25% through air movement over the heated surface.

All outputs to the nearest 5 W/m2.
Panel emissions are based upon turbulent water flowing through tubes.

Floor Panel emissions are based on stainless steel face plates with a coarse grain matt polish, the emissivity factor being taken as 0.5

Ceiling and Wall Panel emissions are based upon surfaces with an emissivity factor of 0.85. However, various published data indicates that the emissivity of a painted surface is 0.9 - 0.95 and therefore, after due consideration of the surface, the total emissions may be increased by 3 - 6%