Has anyone used a peltier cooler to chill a conical?

[skypa]

I was wondering if anyone has used these to keep their fermenter cool during fermentation? It looks like you could build a pump and coil or attach them to a plate milled to the shape of your conical.

 

[njs170]

I have two stout 7.3gal Conicals that are setup with peltier chips to control the temperature. I use an alum plate milled to fit the side with two peltiers. I tried four peltiers with two alum plates to get lagering temps but could never get there.

 

[skypa]

I have the same conical I'm looking to set up. Does two blocks get you to lager temp for fermention 48-55f? How cool will one block keep things?

 

[TX_Brewing]

I have the same conical I'm looking to set up. Does two blocks get you to lager temp for fermention 48-55f? How cool will one block keep things?

Peltiers can only cool a certain number of degrees below ambient, I think it is like 20 degrees, but don't quote me on that. To get lower temps you can stack the chips to get pretty much as cold as you want.

I think the big key to these sorts of projects is the insulation of the conical.

 

[njs170]

Insulation is the key! I couldn't get lagering temps with two block and four chips. I could get down to 40. Room was at 70.

 

[chudsonvt]

Peltiers can only cool a certain number of degrees below ambient, I think it is like 20 degrees, but don't quote me on that. To get lower temps you can stack the chips to get pretty much as cold as you want.

I use them at work to regulate the temperature of lasers. I can say for sure that you can go cooler than 20° colder. It really depends on the thermal load (no insulation = larger thermal load due to the ambient temp thermally conducting into the fermentor) and the particular peltier. I accidentally cooled one connected to a large laser housing well below freezing in a 72° room. It stated to get frost build up from the humidity in the air!!!

 

[TX_Brewing]

I use them at work to regulate the temperature of lasers. I can say for sure that you can go cooler than 20° colder. It really depends on the thermal load (no insulation = larger thermal load due to the ambient temp thermally conducting into the fermentor) and the particular peltier. I accidentally cooled one connected to a large laser housing well below freezing in a 72° room. It stated to get frost build up from the humidity in the air!!!

Edited: duplicate post....

 

[TX_Brewing]

I use them at work to regulate the temperature of lasers. I can say for sure that you can go cooler than 20° colder. It really depends on the thermal load (no insulation = larger thermal load due to the ambient temp thermally conducting into the fermentor) and the particular peltier. I accidentally cooled one connected to a large laser housing well below freezing in a 72° room. It stated to get frost build up from the humidity in the air!!!

I just looked it up, it is a 70 degree differential. That's what I get for relying on my memory.