titanium tubing

[Wilty]

Should be able to use a pipe bender, We use a lot of Stainless steel tubing on Separator package in the oil patch. You can buy hand held pipe benders at Canadian Tire (I've seen them). Depends on the Radius you need, there is a limit to what you can bend a pipe.

[StirCrazy]

I have a actual mandrel bender that goes in a vice. everything I have read states it is simular to SS but can not be bent to as tight of a radius cold. if you can heat it you can do anything with it. I can also free bend it around a pipe as ling as I pack it with sand first to keep it from colapsing.

as for brazing, Silver solder is a brazing, actualy one of the strongest brazes there is. It is done using a oxy accetalene set up as a normal propain torch isn't hot enuf.

I am going to order 4 tubes tonight (unless more people want some) so I will have one or two to sell.

Steve

sorry Steve, I thought for some reason that you meant using a propane torch.... a real torch is much better...

[Buccaneer]

Here is a DIY chiller design that looks interesting ...

http://saltaquarium.about.com/gi/dyn...onschiller.htm

Cheers

[StirCrazy]

Originally Posted by Rasta

Here is a DIY chiller design that looks interesting ...

http://saltaquarium.about.com/gi/dyn...onschiller.htm

Cheers

Not a good way of doing it. a fridge has a low duity cycle and a tank will make it work to hard and it will burn out the motor sooner.

Steve

[Buccaneer]

It's not a motor but a compressor ... but anyway what data do you have to back up your assertion that it wont work efficiently ?

Cheers

[StirCrazy]

actualy if you want to get that indepth it is a hermeticaly sealed motor/commpressor combanation (you need a motor to turn the compressor )

anyways dorm fridges are cheep inexpensive units, and the main thing that changes the cost of a equivalent BTU unit is the duity cycle. a 150.00 dorm fridge will have a low duity cycle unit.. I have not worked on one yet that hasn't.

having said that if you have a 20 gal tank with NO lights you might never burn it out but that same tank with MH will probably burn it out in a couple years, a bigger tank with MH will probably burn it out faster.. it is all relitive.

this is why the air conditioner units are better, as

Stevenormaly a good brand name air conditioner will have a high duity cycle unit in it.

Steve

[Buccaneer]

Have you actually built one of these dorm fridge units to say it will be ineffective or is it merely a educated guess ? ... also what do you think then would burn out faster ... the motor or the compressor ?

Cheers

[StirCrazy]

Originally Posted by Rasta

Have you actually built one of these dorm fridge units to say it will be ineffective or is it merely a educated guess ? ... also what do you think then would burn out faster ... the motor or the compressor ?

Cheers

I have talked to a few people that have built them, they seam to be able to pull a small tank down a couple degrees, I think DJ88 had one and it pulled his 45 gal down 2 degrees.

It would be the motor that would burn out but it doesent matter as because they are a sealed unit if one goes the whole thing goes in the garbage. for the same price you can get a AC unit and chill the room the tank is in. I am going to rip appart a AC and hook a tube type chiller into it, I have all the equipment at work to evacuate it and recharge it so it is cost effective for me, other wise you have to hire a refrigeration dude to set you up, for a couple bills

Steve

[Buccaneer]

Originally Posted by StirCrazy

for the same price you can get a AC unit and chill the room the tank is in.

Got central air this year so not a problem for me but looked like a fairly easy project for someone that is having a hard time keeping their tank cool ... if you figure that a cheap a/c unit would do the same job then do you have a how-to on that setup ?

Cheers