Under Guess the Place, is a very interesting account of this hospital, its origins, etc.,etc. Thanks for that, it whiled away almost half an hour. I was only involved there once. As a sales engineer, based in Maidstone in 1966/67/68, I visited all the hospital engineers- + group engineers in those days- in Kent & Sussex. Many of them at that time were ex Royal Navy or Merchant Navy engineers (the perfect job as they really were- & had to be- "jack of all trades"- & I particularly remember the ex Navy hospital engineer at the Sea Bathing Hospital. When I entered the boiler house ( coal fired steam boilers, which I was involved with), everything- & I mean everything- was gleaming. Not just the copper pipework that you could see your face in but the highly polished floor( that you could eat your dinner off!), the boiler itself- not that easy for coal fired- not a speck of dirt or dust anywhere. Within 20 years or so, all that changed as those engineers retired. And later all the VERY large " mental" hospitals were closed e.g. Darenth at Dartford, a 1200 bed with a school, etc. "cradle to grave for many"! They'd been there since the year dot! All coal fired steam boiler heated, which cause problems in getting the calorifier water temperature low enough to stop inmates burning themselves. Enough- sorry- but I was there & it is history & that is what the KHF is about!