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#1 Posted : Tuesday, April 10, 2007 7:57:08 AM(UTC)
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This is a great site, I've learned a lot browsing and searching here!

I'm having some trouble regulating heat and cooling water flow and hope someone can point me to a thread with the answers, I haven't found 1 yet.

I'm using the 1500 watt hotplate & diffuser from brewhaus. It takes 2-1/2 hours to get 22 Liters and the column hot enough for anything to come out of the condenser. My first try I had running water through the column and then condenser. I couldn't keep the water flow high enough for cooling the condenser with out cooling the column too much ,no hootch,. My second try I used recirculated water through the column and running water through the condenser. No more puffs of steam out of the condenser. I ended up turning the pump on and off every minute or so, pump on no drips, pump off plenty o drips but column temp would climb past what I want to drink.

I have read here that I need to turn the heat down but when and how much?? And whats a good way to control the pump?

Help
Thanks
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#2 Posted : Tuesday, April 10, 2007 11:54:43 AM(UTC)
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Hey Lou, and welcome.

I also have the High Capacity, and had the same problems. If you want to use your pump for both reflux and condenser, install a Y or T at a convenient point in the supply line, and then a valve to each of the above. That should give you excellent control over the head temp. Turning the pump on and off will destroy your reflux equilibrium every time. If your going to continue useing the tap for the condenser, then just instal a valve between the pump and reflux to control the volume.

Elricko posted several months ago, with this link he desighned:

http://tvbeer.com/cool1.htm

The link was heating/cooling in Feb.

Several hints I have found very useful. Add 2 cups of boiling chips- rashig rings, broken unglazed pottery, broken safety glass, washed pea gravel etc. It moderates the boil from the kaboom and the large bubbles of gas, into many small ones. Also, insulate your column, thats critical, and the top half of your boiler will speed up your boil up times. I think you have to run the hot plate full power, or you will get on- off cycling, and that will also interupt the reflux, but you will already have solved that problem with water control.

I never do a single spirit run with the wash. I do 3 or 4 stripping runs, fill my boiler, and then do the spirit run. I use propane, and now a beer keg with a reducer, so I do double batches, which really helps with the cuts and the time factor. I can strip 50L in under 4 hours, and the spirit run in about 7 catching a gallon/hour at 95%. I also have cold spring water unlimited, so no water issues. The above times are light up to end of run. Get a digital thermometer with an alarm.

Those are some of the things that I learned the hard way, but have helped me.

I set the water flow so as to have total reflux for 10 min. or so, and take off the heads very slowly, then increase flow for the hearts, then shut off the reflux water for the tails and collect fast. Also, see some of the posts in the last several months about useing bakeing soda and canning salt for a stripped run.

Best of luck, and just ask away. There are some very knowledgeable and helpful People here.

Cheers!
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#3 Posted : Tuesday, April 10, 2007 2:20:44 PM(UTC)
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Thanks for the tips, John.

I went back and looked at Elricko's pics again and realized those are ,duh, standard garden hose fittings. I have a pile of them and probably don't need a trip to the depot to get my cooling water divided and valved.

I'll look into insulation as well.

I suspect that the 1500 watt electric is minimal for bringing the whole rig up to working temperature but I'm not too keen on propane in my kitchen or basement ;

What do you mean when you say 'I set the water flow so as to have total reflux for 10 min. or so'
I get it that this is lower flow than for the hearts, but about how low? Also do you reduce the heat once the column gets to 40 or 50 deg C as Rick suggests ,in 1 of the other newbie threads,
And if so about how much.

I know it will be trial and error with each rig but I'm hoping to start in the right direction.

I guess I am doing stripping runs cause I'm way too tired by the time everything is dripping happily to do a slow run. Once I have enough I'll be back with ?'s about how much to water down for the spirit run , after I look through all Tony's great info,

Thanks for the help.
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#4 Posted : Tuesday, April 10, 2007 2:49:16 PM(UTC)
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Lou wrote 'What do you mean when you say 'I set the water flow so as to have
total reflux for 10 min. or so'
I get it that this is lower flow than for the hearts, but about how
low? Also do you reduce the heat once the column gets to 40 or 50 deg
C as Rick suggests ,in 1 of the other newbie threads,
And if so about how much.'

I run the propane burner at high heat and usually will come to boil with 13.5 gal. in about 45 min. and yes when the temp. starts to climb, I reduce the heat quite a bit- but again, its a constant heat, to a vigerous simmer. As you mentioned, with a fast flow of water to the head, you can achieve total reflux. Then by slowing the water volume, you can begin collecting the foreshots and heads at say a drip/second. I make the cut and slow the water flow until I'm getting a nice small, but solid trickle.

When doing the stripping runs take out the packing, no reflux water, and just use the top half of your column. Goes much quicker.
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#5 Posted : Tuesday, April 10, 2007 10:57:18 PM(UTC)
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Lou:

I wrote an article a while back about going electric, I posted it on a free web site so you have to wax a few pop ups to get to it but you may find some helpful information there. The site is http://elricko.741.com/ I think the key thing is to do is regulate your heat first then your cooling flow.

By the way, you are right, I use standard garden splitters on my cooling system. I believe in the 'Keep it simple' principle.

I am in the process of moving but I've already been planning in my head how I'm going to set up my system in the new house. I will post some pics when I get it up. 'M' day is April 28th. Yeah!!
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#6 Posted : Monday, April 16, 2007 10:46:55 AM(UTC)
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Elricko,

Could the Lutron 1500W dimmer switch be connected to any hot plate type heater up to 1500W? I assume it just reduces the voltage so the hot plate would not cycle on and off.

I am about to order the Essential Extractor Pro Series II and was wondering if I should try it first without the garden splitters on the cooling system.
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#7 Posted : Friday, April 20, 2007 12:53:20 AM(UTC)
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Elricko & John,

OK, I did a stripping run but it took almost as long. I notice that Brewhaus site no longer says that the PS2 high capacity will do a run in 1-1/2 hours. It now says the 1500 watt is minimum.
I'm thinking that I will add an internal electric 1500w heater element to speed up the initial heating.

Lou
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#8 Posted : Friday, April 20, 2007 1:07:00 AM(UTC)
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Actually, we have never stated specific times for distillation, because depending on what a person is distilling and the method used, the time can vary greatly. Even excluding heat up time, 1.5 hours would be extremely fast for a reflux run. I would suggest closer to 2.5-3 hours.
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#9 Posted : Friday, April 20, 2007 1:54:15 AM(UTC)
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Rick,

It currently takes me 2-1/2 hours to heat up - using the 1500 watt hot plate from you with the diffuser plate and 5-1/2 hours till I'm done ,7-1/2 to 8-1/2 hours total,. That's running the hotplate at 12 the whole time, longer if I drop it to 10 or 11 for the hearts. As I said above, the stripping run took almost as long and that was with just the top 1/2 of the column and only a bit of copper at the top and no cooling in the column.

I would be quite happy if it only took 5-1/2 hours start to finish.

Lou
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#10 Posted : Friday, April 20, 2007 2:15:00 AM(UTC)
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Lou, That is exactly what I am running for batches. Almost 3 hours to get up to temperature and another 6 to 7 hours to get through the run. I leave my temp set at high throughout the entire run and run cooling through the top of the tower. From everything I hear from these guys on this forum, patience is a virtue when doing this. So I have learned to start it early in the morning and end it late in the evening. My output is very clean and a great product.

Bob
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#11 Posted : Friday, April 20, 2007 2:16:23 AM(UTC)
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Sdog,

I think if I were going to add an internal element, I would go for a bigger w element and run it on 220 for heatup and then switch to 110v for the run, and eventually get a voltage controller. I am able to use propane, so my stripping runs are about 2.5- 3.5 hours for 50L runs, and 4.5- 5 hours for a spirit run, start to shutoff, if I watch and mooniter it very closely. Otherwise, I just set it slow and let it go with therm. alarm set to let me know when to make the cuts. I have learned when this will happen after many runs, and for each type of spirit. That may take 6 or more hours.

BTW I have had no problems running it this fast, but be forewarned, it takes a lot of very cold water to maintain good reflux and condenser capability. I achieve total reflux for a while at the start, and then take the heads off slowly, and fire it up for the hearts run. I consistantly get 95% when running for neutral.
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#12 Posted : Friday, April 20, 2007 2:23:09 AM(UTC)
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If the runs are taking this long, you are not pushing the unit to its capacity. Try insulating the kettle to reduce the heat loss ,this will take the place of adding more heat,, and also consider bypassing the thermostat in the hotplate to keep it from cycling.
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#13 Posted : Friday, April 20, 2007 2:43:52 AM(UTC)
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John,

I agree, but I don't have 220 in my kitchen. If I change locations I figure I can always swap out for a higher wattage cartridge.

Rick,

I have searched for your instructions for bypassing the thermostat but haven't found them. Do you have a link? I am planning to insulate the column for my next run but I haven't found a material to insulate the top of the pot. The foil bubble wrap folks have mentioned is only rated to 165 degrees and I am afraid of melting it and ending up with a mess.

Lou
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#14 Posted : Friday, April 20, 2007 3:04:05 AM(UTC)
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The instructions for bypassing the thermostat are at www.brewhaus.com/hotplate-adaptation.

What many people use to insulate the kettle is heat duct insulation. It has a high temperature rating, and is very effective ,an relatively inexpensive,.
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#15 Posted : Friday, April 20, 2007 3:26:51 AM(UTC)
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If you don't have 220 in the kitchen, perhaps you have a gas stove. Some use it to heat up quickly to say 145°, and then continue with electric.
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#16 Posted : Friday, April 20, 2007 4:29:41 AM(UTC)
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Peter:

Yes the Lutron can be hooked up to a hot plate but I thought hot plates had a knob to control the heat.

SDog:

I use two elements with mine. One is a 1500W 120V and the other is a 2000W 120V that I picked up at home Depot for $8 each. I can go from bone cold to full drip in about 35 minutes. If you can't find a 2000W then a second 1500W will do the trick. When I move into my next house, NEXT THURSDAY!!!!, I plan to have a 220 installed in what my wife calls my 'special area'. Then I plan to look into those 3500W-5000W jobs.

Cheers!
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#17 Posted : Friday, April 20, 2007 4:31:25 AM(UTC)
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John,

I've been meaning to try that. Just a little reluctant because I would then have to move the full hot pot over to the electric hotplate on the floor and hook up the column ,not enough height under the range hood,
I'll report back next week as I'm planning on doing a stripping run this weekend.
Lou
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