Great sleuthing
@KiKiGee. Now I'm no expert, and have only ever eperienced underfloor heating in a few houses, (your feet get toasty very nice in the depths of winter), but those terracotta tiles in the Grand Salon..........................
Let's pretend she's telling the truth about the underfloor heating (I know, I know, indulge me)
Given this was what 16 years ago ????? and underfloor heating wasn't exactly common then, surely those terraotta tiles are too bloody thick to have allowed any heat to come through??? And even if they did, surely the time it would have taken to feel the heat would have be a) an eternity b) astronomically expensive ??? They must be half an inch thick minimum lookig at the pics.
I'm sure SJ has said somewhere that the underfloor heating in the Grand Salon isn't adequate. Where's the evidence of it in the pics?
Maybe they tried say a 3-4 metre square panel of it, tiled over and switched on, then realised it wouldn't work? Forever referred to as 'the underfloor heating the Grand Salon' in Sfeff's delusional orbit.
Whatever the reason, that Grand Salon aint gonna be Grand and / or warm, anytime soon