Cooling I built a table for the miners and pointed them out the window so the heat blew out of the house, I had a fan blowing on them to help push the heat out. We solomined many altcoins and traded them for BTC. Some of them were zetacoin, betacoins fastcoins, when they first came out and the rewards were 1000 to 1600 copins per block.Then we started using Bitcoinaffiliatenetwork which was paying out veryb high as well as bouncing back and forth to triplemining.
The dragon miners were rated at 1 THS but we would get sometimes up to 1400, it was not steady at that rate and on some pools would bounce between 1100 and 1400 but they never dropped below 1028, the rockminers gave a nice steady 40 to 42 GHS and all the antminers I had overclocked and gave 3 GHS each, the same with the Blizzards they were manipulated and gave 6MHS each.