move into and out of the wellhead cellar as seen in the example embodiment of fig5 a wellhead cellar sealing assembly engages an outermost stream of production casing the seals comprise an inner and outer skin with polyurethane foam disposed in between according to some embodiments each of the seals are energized using bolts attached by known fasteners in order to provide a secure and reliable sealing assembly for the protection of wellhead other means for energizing the seals include introduction of low pressure air feeds for example an air feed having about 2 psi so that the seals are held fast after attachment by means of compressive pressure or the use of a sealant such as foam fig5 is a post hole in which a platform support post 50 is disposed according to further aspects of the invention the support post 50 has an adjustable nut 56 for making fine adjustments to the level of the platform 52 disposed thereon and a fluid transfer means 58 that permits fluid to be pumped from the platform down inside the body of the support post 52 for heating or cooling operations a lower end 60 of support post 50 is contoured to permit pumped fluids to flow toward the bottom of the support post for full uniform heating of the support post at the lower end of the support post 50 a smaller diameter section 62 is for engagement.