M/H heat question

[guille]

I'm running a 90 gallon tank with just fish light atm. Next week I'm looking to upgrade to 2x 250 M/H 14k. Is anyone out there running this? If so, are you doing it without a chiller? I am not wanting to chill (too costly) I'm hoping 3 or 4 inch fans will do.
Thanks in advance

 

[tizzo]

That's what I did when I lived in NC, but my AC kept the house at 74 and I had a fan blowing over my waters surface AND my tank temp was set to stay at 82F.
Oh yeah, 2 250w 13K (not 14) halides with actinics.

 

[bigleman]

i've got one 250w 14k on my 55g and i actually had to plug the heater in a few times over the winter.
mine is in an open back canopy with 2 3" fans on each side.
I have the fans come on with the MH and then go off about 30-45 minutes after the MH goes off.