recommendations for amplifiers that don't emit tons of heat


I tried a Krell ksa 150 and while I liked the sound, it was like having a space heater in the room. I now have an Audio research vt100. It sounds fantastic, but it makes the room hot as well. Not as bad as the Krell, but it's still a drag in the summer.

I'm guessing I should just suck it up, but I'm curious what cooler running options there are that sound as good (or better)... suggestions?
tripg
Cmach, do you have any experience with Audio Research, Krell, Bryston, or Aragon? If so, how does the McCormack compare?

I realize there are tons of variables, but any information is helpful. 
@tripg 
McCormack's have a very good sound at a very good price. SMc Audio will perform upgrades that will bring them to current standards, too.
The DNA-1 I owned didn't put out that much heat, either. It was warm, but not a space heater like my Atma amps-which I love to death.
What are your power needs/speaker? It would help in giving you a recommendation.
Bob
@gdnrbob
Paradigm studio 40... but hopefully I’ll be in a larger space in which I could use floorstanding speakers in the next few years
Space is actually one of the big issues for me. I'd love for instance, a pair of Parasound monoblocks, but have no room at all.
tripg,

With the info you gave us of your present status and also you may be in the position to upgrade speakers later.

You probably could find a class d amp used that would not exceed your budget or another possibility is the new Schitt audio Vidar that sales for 700.00 and I have heard a little bit of feedback on it that it sounds pretty darn good,I haven't had a chance to listen to it.

Kenny.