Why no heated gear?

"decrease warm up time" Well are we taking "How long a pre/amp take to sound it's BEST?" or how long it takes to be at operating temperature?
"I" thought we were taking about some slick way (pre heating with external heat) of making the waiting period (til the pre/amp whatever) for optimum sound (which is NOT just until the damn thing is warm). Now my prior amp (Forte 4a) took at LEAST an hour of being on to sound 'better' and nearly a whole day to sound great. Now hat amp was fully 'warmed up' in twenty minutes (far into class"A" operation) but no way did it sound great until it was on a whole day!!!
So i am sort of confused about some saying yeaah, external heat caould do it... no way IMO. Yes it could be 'warmed up' and 'at optimum operating temp' but NOT optimum sound quality from a external heat source.
Anybody care to clarify better?

To clarify IMO a "warmed up" component is when it sounds best, not that it is warm to the touch etc. As we all know those are very different when it comes to the sound of said component. I want to expedite the time it takes from off to sounding like bliss. Now when I say OFF I mean current isn't passing through the amp/pre amp circuitry, and sounding like bliss means it sounds like it would if it were left on all day everyday.

I think warmth is the result of the equipment being on, not
the sole cause of it sounding better, I think there is
something else going on besides heat (though operating
temperature is part of it - perhaps necessary, but not
sufficient on its own), along the lines that
Elizabeth suggests, and heat is a byproduct of that process,
and different than a mechanical engine, though a mechanical
engine may not be that different than heating up a cartridge
to "loosen" its suspension with an external
heater, versus the slower process of playing and warming up
the suspension assembly with motion (friction).

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So i am sort of confused about some saying yeaah, external heat caould do it..

I see why you are confused... because nobody ever said that. Nobody ever said that external heat could keep a component at its optimum operating point.

The question was, would keeping the equipment warm speed up the process of being fully warmed up.. If you look at an extreme example it might help to understand the concept.

Take two identical amplifiers. Store one in a deep freeze and the other under an electric blanket. Take them both out and turn them on. Which one will reach the optimal operating point more quickly?

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I am a little confused. I live in NY and I have to say that my tubed gear takes the same amount of time to warm up in the summer as the winter. In other words, if I wanted my gear to warm up faster, I would need these warm up blankets in the summer as well. The extreme example is easy to understand, but, let's face it, how cold can it possibly be in one's house. There is no deep freeze unless you're listening to music outside. Anyway, the extra time to warm up the gear keeps the house a little warmer in the winter.