>Has enybody experence with heating an artifical bog?
The easiest way is to cover the sensitive part of the bog in cold nights by
white styropor foam boards ('sagex') which must be weighted down by some
stone bricks to avoid their removing by wind blasts (thickness at least 5
cm, usual size in Europe 100x50 cm, available in Do-it-yourself centers).
As soon as temperature is above the freezing point the boards should be
removed to avoid fungus infection.
Juerg
___________________________________________________
Dr. Juerg Steiger, Institut fuer Aus-, Weiter- und Fortbildung IAWF
University of Bern, Inselspital 37a, CH-3010 Bern, Switzerland
Office: +41 (0)31 632 98 87, Home: +41 (0)31 972 19 79
Fax: +41 (0)31 632 98 71, E-mail: steiger@iae.unibe.ch
Web: http://www.iawf.unibe.ch/index.htp