Conservatory heating?

Fitting engineered wooden floor in a large conservatory. intend to use some form of underfloor electric heating either the ribbon mat version or the carbon film version. the suppliers of these seem to say that one is better than the other - i think depending on which they sell or which they make the most profit on.. someone used either system and have any feedback
Answer
Check out http://www.warmup.co.uk/i have their undertile heating (they do a version for wood). the programmable thermostat gives great control allowing different temp settings at different times of day etc. and uses air temp and a floor temperature probe so you can set a comfortable room and floor temp and protect your flooring from overheat.