While I'm all for Climate Change and have the Asthma lungs to prove that it's (I grew up in a Steeltown). My setup is kind of an Oxymoron (?). BATVK50-SE with 8 6H30 tubes and she gets very hot not long after it's turned on. The BA Preamp feeds a pair of Orchard Audio Ultra Amplifier modules which in turn are powered by a 1500VAC, 20A Torroidal.
Sounds amazing so yeah. Tubes feeding solid state is the way to go I guess.