Heat

[pilot_bell777]

Any way besides a chiller to get the heat down (less expensive)

Just need a couple degrees lower.

[NaCl_H2O]

- More Fans
- Reduce Photo period
- More Fans
- External vs submersed pumps
- More Fans
- Drop the temp in your house 2 degs
- More Fans
- Ziplock bags full of ice in the sump
- More Fans
- Dehumidifier
- More Fans

Oh, and you can add a few more fans, that might help :P

[pilot_bell777]

I think my digital therm is messed up. I took the new digital one off my nano and put it down in the tank and it read 2 degrees lower! LOL

That puts me pretty right at were I want to be. I have 3 large computer fans, one desk fan, and one car fan converted on the tank! LOL

Guess I could go get more fans....LOL

or a new therm....LOL

[Ping]

I have a fan blowing air along the back of one of my systems. It stands about 3 feet off the ground on a pole. It is on the same timer as the lights. Works very well for me.
If you have a hood, you can install computer fans. Drill holes in it for more ventilation or leave a door propped open. How about leaving the stand door open? Just some ideas.

[Ping]

I need to type quicker. There were no replies to this when I posted.

[seamonkey2]

may be more fans??? :lol :lol :lol

Jose

[GaryP]

Let me add another one. Lower humidity. My experience has been that we rarely have a heat problem in the summer when we have the AC turned on. This is because the AC is keeping the humidity lower in the house. This increases evaporation and thus decreases temp.

When we do have temp problems is on mild days like we had this weekend with high humidity. No AC, no cold dry air, and little evaporation. I retrofitted my hood with extra high cfm fans to help during this sort of peak cooling problems. I normally have two 100 cfm fans running on a timer with the lights. I have another 2 fans available when I need them. Spring and Fall are when they get the most use.

Remember that an aquarium works like a big swamp cooler. Huge amounts of heat are given up as water vapor.

It takes 1 calorie of heat to warm 1 gram of water 1 degree celcius (1.8 degrees F). It takes around 600 cal. of heat to convert that same gram of water into water vapor at the temperatures we operate our aquariums. My SPS tank can evaporate up to 4 gal. per day. That 4 gal. represents over 9 million calories of heat. So, you can see that this starts to get into some pretty staggering numbers by the time you are done.

I am not a physicist, but I did stay at a Holiday Inn Express last night.

[hammondegge]

reverse photo periods if you run a sump/fuge