Conservatory Heating? Fitting engineered wooden floor in a huge conservatory. Intend to use some...

Fitting engineered wooden floor in a huge conservatory. Intend to use some form of underfloor electric heating any the ribbon mat version or the carbon motion picture version. The suppliers of these appear to say that one is better than the other - I presume depending on which they sell or which they construct the most profit on.... anyone used either system and hold any feedback please
Answers:    Check out http://www.warmup.co.uk/

I have their undertile heat (they do a version for wood). The programmable thermostat give great control allowing different temp settings at different times of day etc. and uses nouns temp and a floor temperature verbs so you can set a comfortable room and floor temp and protect your flooring from overheat.
Go for the underfloor heating