Electric Brewing Supply 30A BCS Giveaway!


Home Brew Forums > Home Brewing Beer > DIY Projects > Direct fire Boil Kettle - Bottom Drain
Reply
 
LinkBack Thread Tools
Old 02-16-2010, 05:33 AM   #1
mikefromcu
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2008
Location: San Diego
Posts: 88
Default Direct fire Boil Kettle - Bottom Drain

Wondering if any of you use a bottom drain on your boil kettle especially for those of you who are using direct fire.

I'm putting together a 1.6 bbl, 4 kettle system now and want a bottom drain on the BK (4th vessel is the whirlpool). Currently I have it drawn as being installed along the edge, as close to the sidewall on the bottom as I can get it.

My concern, or what I'm trying to figure out is how or what to use to hook up to that drain to protect it and the wort in it from scorching, how to hook up the line after the boil to connect to the pump for pumping to the WP, etc.

I was/am looking at a 1.5" triclover ferrule welded to the bottom, but am stuck at that point. that may not be the right idea...

Any help? Thanks!

__________________
mikefromcu is offline
 
Reply With Quote Quick reply to this message
Old 02-16-2010, 07:48 AM   #2
ScubaSteve
Feedback Score: 0 reviews
 
ScubaSteve's Avatar
Recipes 
 
Join Date: May 2007
Location: New Bern, NC
Posts: 3,674
Liked 62 Times on 46 Posts
Likes Given: 11

Default

You'll have to do some digging on this...the google option on the HBT search seems to work pretty well for the obscure stuff. This can be done, most people weld in a coupler, and then add an elbow and pipe that takes the wort out front through the bottom skirt, where you have your ball valve. One concern is scorching wort in the tube...but you'd have to ask someone who has actually done it. I wouldn't use a triclover, it'll just get jacked up.

I think bottom drains are the best way to go....it's a shame you don't see more of them!

ScubaSteve is offline
 
Reply With Quote Quick reply to this message
Old 02-16-2010, 02:17 PM   #3
mikefromcu
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2008
Location: San Diego
Posts: 88
Default

I googled the heck out of it.
I'm not using a keggle but rather a custom S/S 25" diameter x 30" high kettle.
Thanks Steve, I kinda figured the triclover would get jacked up, that's where my brain stopped up and I thought to check what anyone else had done.

__________________
mikefromcu is offline
 
Reply With Quote Quick reply to this message
Old 02-16-2010, 03:24 PM   #4
RonRock
Always Ready
HBT_LIFETIMESUPPORTER.png
Feedback Score: 1 reviews
 
RonRock's Avatar
Recipes 
 
Join Date: Jul 2008
Location: Underwood, Iowa
Posts: 1,317
Liked 7 Times on 7 Posts
Likes Given: 2

Default

I wonder if you could insulate the drain and piping in the direct fire with some Rock Wool or other high temp insulation? I've used some stuff I got from Hotsy for my hot water washer. It is like a fiber mesh type blanket. Maybe wrap the plumbing and make a stainless shield so the flame hits the shield. Just a thought.

RonRock is offline
 
Reply With Quote Quick reply to this message
Old 02-16-2010, 04:11 PM   #5
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
Vendor Ads 
Feedback Score: 2 reviews
 
Bobby_M's Avatar
Recipes 
 
Join Date: Aug 2006
Location: Whitehouse Station, NJ
Posts: 22,099
Liked 1009 Times on 675 Posts
Likes Given: 28

Default

I think it all depends on your burner. You could easily plug the jet holes so that the drain pipe didn't receive any direct flame. Another way to prevent scorching is to take some of the wort from a side port and pump it back through the bottom drain. The flow could be slow and it would still work.

A 1.6 BBL kettle should have a ton of bottom area. I'd put the drain way off center, near the edge. Mount the vessel on the stand such that you shim up the far end by 1/4" and put the burner away from the drain. I don't see the problem.

__________________
BrewHardware.com
Sightglass, Refractometer, Ball Valve, Weldless bulkhead, Thermometer, Decals, Stainless Steel Fittings, Compression Fittings, Camlock Quick Disconnects, Scale, RIMS tube, Plate Chiller, Chugger Pump, Super Clear Silicone Tubing, and more!

New Stuff?
Bobby_M is offline
 
Reply With Quote Quick reply to this message
Old 02-16-2010, 04:21 PM   #6
mikefromcu
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2008
Location: San Diego
Posts: 88
Default

Thanks guys.
The bottom is 25.15" in diameter (25" ID) so placing the burner slightly off center is no problem and I already planned on putting the drain far against the forward edge.

What would you all suggest for a drain? I was thinking of a 1.5" outlet reduced to 3/4 ball valve. What would you suggest for the parts that will be physically welded to the bottom of the kettle?

__________________
mikefromcu is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Direct fire Kettle MLT - recirculate? Gordie All Grain & Partial Mash Brewing 2 04-04-2008 07:38 PM
Converted Keg Boil Kettle - Drain Hole Location? weetodd Equipment/Sanitation 1 04-28-2007 12:08 AM
False bottom in boil kettle Beermaker General Techniques 3 01-24-2007 11:19 PM
false bottom in boil kettle beerme Equipment/Sanitation 2 09-29-2006 02:48 PM
Scorched spot in bottom of boil kettle! freebird Extract Brewing 12 06-30-2006 04:58 PM