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Are there any tube amps that don't give off any---

HEAT!! 
I have a very small dedicated listening room, and so I was wondering IF there are any tube amps..I guess hybrid or all tube ( although more all tube)- that simply give off NO heat or very very little heat after full warm up. Since the climate seems to be getting hotter, it would be nice to have the benefits of a tube amp with no heat whatsoever. ( is this even possible?). 
Running AC isn't my preferred way of listening in a small room, so this question is now on my mind. I do not want to consider Class D solid state amps...as I know they are an option from a heat perspective...but just tubes.
128x128daveyf
testpilot
896 posts
 
Why not replace the current vacuum tubes with LED tubes?
Post removed 
verdantaudio's avatar
verdantaudio
1,469 posts
 
@rushfan71 The Musical Fidelity NuVista 600 and 800 are hybrid amps that have a tube preamp stage and use bi-polar transistors in the output stage.  For these units to sound really good, they need 20-30 minutes of warmup time.  
austinstereo's avatar
austinstereo
61 posts
 
We had a client actually return a wonderful vintage tube amp because he thought it gave off too much heat.  He was already aware that tube amps give off heat, but it was apparently more than he expected.  Worth noting that this was just a little 7189 stereo integrated.  The client was worried he would touch a hot tube accidentally, even though they are at the rear of the unit.  

If you are concerned about heat.  A tube amp is not the right choice.  
surfmuz
376 posts
 
Some custom made class A high end amps are water cooled with very low heat factor.  For tube amps I never see it. One of the purposes of glass popping out tubes is heat Exhausting so heating is actually in tubes nature. 
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