What new amp for my Merlins

I asked this question about 6mo ago. A lot of you told me to get the X upgrade first, I did and what a great improvement. So now I ask the same question again.
For those of you with the Ars, do you have the amp in your rack or on the floor by the speaker's? Exactly how much heat does it put out?
The reason for the delay was that they were in the process of moving their production site. I believe everything is back on line now.

I am interested in the heat issue as well. The amp could go on the top of my 3 shelf rack, but it would be nice to be able to place it below if I switch my source to a top loading cdp.

I run Cary 805 mono blocks in my 15 x 18 x 8 room with absolutely breath taking results. Highly recommended.
It could fit on the bottom but I have my 5 channel amplifier in there. In addition, I have 6 and 8 year old children and I'm afraid they may hurt my tubes.

It does put out heat, but every tube amplifier does. I had a 50 watt deHavilland SET that put out twice as much heat, and a RAM Labs labs amplifier that put out about the same amount. I've also had VTL MB450's that put out a lot more heat, and the VTL tiny triodes that put out a little less. I guess its all relative, but the ARS puts out more heat than most solid state unless it is biased into class A.