Chiller experience??

Laura and Jim will be hosting the May meeting this Saturday the 12th and it will be the usual of food, drinks, raffle and fun.
 
Doors will be open at 6:00 pm for social talk and the meeting will start at 7:00.  Parking gets a little tight and the city says you can't park on 4th but there is a parking lot a block away.   Meeting is usually held in the backyard so feel free to bring your favorite lawn chair, weather permitting of course.

If you need address/directions, contact a club member.

Best if you park at Mini Mall (where the spaghetti establishment use to be)
 
You will get to see his new frag tank set up in the making.
 
Hope to see you there!

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[psa]

For a tank that size I would put a chiller on it.  I would put a fan or two in the canopy or if you have a sump one over the sump to help cool it down.  How close are the lights to the water?

Assuming you meant that you would not put a chiller on it , I agree with you.  I've got a 250 MH over a 29 Gallon here, and getting the fans to properly vent the heat from the light cleared up all heat problems.  The characteristics of a 29G (high surface to volume, thin glass, small volume of water) are such that it doesn't retain heat well anyway.

[angelscrx]

Yes that's what I meant (NO Chiler) Paul thanks.

[btrue]

The lights are 10 1/16" away from the water. The temperature stays at 78 only if the room is 70 or the the air conditioner is on. I am going to get the 1/15 HP Current USA Prime Mini-Chiller and a Mag Drive 7 pump.
The chiller has 750 BTUs of cooling power.

[Les]

Ok, I think I'll chime in here. A chiller needs to be sized according to the load of a given system. For proper sizing you need to calculate the BTU's needing to be removed from the water. The way that btrue did it is great.
First of all a BTU (British Thermal Unit) is the amount of energy it takes to heat/cool one pound of water 1 degree F in one hour. So for that 29 gallon tank lets assume that there is 25 gallons nominal and he timed the temperture rise of three degrees for about one hour. Assuming saltwater is 8.5 lbs/gallon then I come up with 425 btu's needed of heat removal.
So, that 1/15th HP chiller will be just fine. 

[angelscrx]

Ok, I think I'll chime in here. A chiller needs to be sized according to the load of a given system. For proper sizing you need to calculate the BTU's needing to be removed from the water. The way that btrue did it is great.
First of all a BTU (British Thermal Unit) is the amount of energy it takes to heat/cool one pound of water 1 degree F in one hour. So for that 29 gallon tank lets assume that there is 25 gallons nominal and he timed the temperture rise of three degrees for about one hour. Assuming saltwater is 8.5 lbs/gallon then I come up with 425 btu's needed of heat removal.
So, that 1/15th HP chiller will be just fine. 

Huh?  What? yeah what he said!

[Ed]

very well put...Les, your awesome!