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Author Topic: Hot Box  (Read 2979 times)

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Offline customsawyer

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Re: Hot Box
« Reply #20 on: June 11, 2019, 03:39:10 AM »
I guess I don't have them as bad as Yellowhammer. Mine will get full and the bees will be dead. I just dump the freshest one in my hand and pour out the rest then put the fresh one back in the jar and let it go back to work.
Two LT70s and to much other support equipment to mention.
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Offline YellowHammer

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Re: Hot Box
« Reply #21 on: June 11, 2019, 08:08:59 AM »
@doc henderson
Here are some pics.  Although the "season" is generally over, I had them all buzzing in my traps yesterday.  I didn't realize this one was already filled up to the bottom of the inner funnel.




 

Ours are made the same as @samandothers describes, a water bottle as the inner funnel, then either a Gatorade or 2 liter bottle as the bottom of the trap.  The first picture shows two traps yesterday, about 4 feet apart, and illustrates how the one trap at the corner eave is slam full to the bottom of the funnel, can't take another bee, and how the other trap is only maybe 1/4 full.  Considering I have 8 or 9 of these traps on this one building alone, it shows how bad these bees are getting.

You can also see how the corner trap kind of leans out at an angle, thats where I have it braced against the side of the building.

The second photo shows a close up of the entry hole, and its upward angle.

If there are any doubts about how bee resistant poplar is, here is the proof.  Although the barn's pine framing lumber is shot through with these bees, they will not hit the barn siding, which is poplar.  They just won't touch it.  
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Offline samandothers

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Re: Hot Box
« Reply #22 on: June 11, 2019, 10:39:21 AM »
Those do look familiar!  I had one of the burgers drill into one of the pressure treated pickets on my deck here at the house this year.  First I'd noticed here in a while.  

They do cause me concern when contemplating some exterior timber frame for our home!

Offline Just Right

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Re: Hot Box
« Reply #23 on: June 11, 2019, 10:50:28 AM »
Mine do great too.  Made a big difference.  But when one of them bored into my catcher. . . . .I broke out the Hatchett.  It is a restricted chemical here in GA,  but it made a big dent in the local Carpenter BEE population!
If you are enjoying what you are doing,  is it still work?

Offline farmfromkansas

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Re: Hot Box
« Reply #24 on: June 12, 2019, 01:47:59 PM »
Which remote weather station will stand the temperature of a kiln during the sterilization cycle?  The low price one I found will only reach 122 degrees.

Offline YellowHammer

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Re: Hot Box
« Reply #25 on: June 12, 2019, 02:43:17 PM »
I use the Sensor Push Wireless from Amazon.  It reads to over 140F but that is its rating. It Bluetooths to your phone whenever you get in range.  Works great.  
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Offline K-Guy

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Re: Hot Box
« Reply #26 on: June 12, 2019, 04:24:29 PM »
@YellowHammer 

Are you their dealer or just the cheerleader?  :D ;D
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Offline caveman

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Re: Hot Box
« Reply #27 on: June 12, 2019, 04:46:10 PM »
I appreciate the guidance.  I spent several hours reading about various weather stations and grill thermometers trying to decide which to buy.  If something does the job that is good but if it is inexpensive and does the job, that is icing on the cake.
Caveman

Offline YellowHammer

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Re: Hot Box
« Reply #28 on: June 12, 2019, 06:53:52 PM »
Neither, 
But I did stay at a Holiday Inn once. :D

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Offline Don P

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Re: Hot Box
« Reply #29 on: June 12, 2019, 08:24:20 PM »
It must depend either on location, cussidness or something, I have replaced poplar with long bee tunnels in it and they hit my treated fascia boards as well as my folks. I have a white pine TF entry porch on the house and am getting ready to replace shingles on the house. I need to take the roof off the porch and pull the outer purlins that they have thoroughly riddled. They'll be locust this go round, bite this ;D.
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Offline caveman

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Re: Hot Box
« Reply #30 on: June 15, 2019, 06:08:21 PM »
To stray from the bee thread a bit, John and I made a little more progress on the hot box today.  He came up with some 12v fans and a 12v power supply that runs off of AC 120v.  The fans are only 3 amps each and about 4" in diameter but they move the air.  I hope they can take a little heat.  We nailed down 2" slats on 16" centers on the floor and we still need to wire up receptacles and the brown truck needs to deliver the thermometer.  
 

 

 

Offline samandothers

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Re: Hot Box
« Reply #31 on: June 15, 2019, 10:42:21 PM »
Nice looking fans.  I am watching with interest your results.  I feel I need something to treat lumber with.

Offline caveman

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Re: Hot Box
« Reply #32 on: June 21, 2019, 02:40:43 PM »
Update:  We installed two lights, each on its own metal box and one of the 12v fans inside the box.  On the outside, we installed weatherproof box with duplex outlets and the 12v converter.  To test it, we ran an extension cord to it and turned on two lights and the fan.  In 15 minutes it went from 91F to 107F and then two minutes later it was down to 105F -What the heck, man?  We opened it up and found the fan still moving air but both bulbs were toast.  We surmised that we should have run a heavier extension cord to power them or used something other than computer power supply cords to run from the lights to the outlets.

Anyway, a quick trip to Ace to buy some plug ends to add to some 12/2wg wire for the power supply cords and plugging in 12g extension cord and we were soon back in the testing phase.  We shut the doors at 1:30 and it was 91F inside the box.  30 minutes later it was up to 127F and still climbing.  After an hour, it had made it up to 136F.  The box is not loaded and there are some leaks in the insulation joints.  I am hopeful that it will get up to temperature and that the fans and bulbs survive.
 

 This photo was taken prior to rewiring and adding blanks to the electrical boxes.
Caveman

Offline caveman

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Re: Hot Box
« Reply #33 on: June 21, 2019, 06:36:04 PM »

I have not quite figured out the quote function yet but I guess I need to go to Lowe's to buy some $5 halogen bulbs (YellowHammer's seem to be more durable than mine) and see if they hold up.

Update on the update.  The temperature got up to 152F and in a few hours from 91F.  Then, it dropped to 145F so I opened it up and noticed one of the bulbs blew.  I bought these bulbs off of Ebay a couple of years ago and they have worked well until today.

The fan was still blowing when I pulled the plugs.  The 4" server fan seems adequate to keep the air stirred up in the box.  Now, we just have to find some bulbs that hold up.  We discussed aiming the fan at the light fixtures in order to cool them slightly while still moving air around inside the box.

Caveman

Offline Don P

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Re: Hot Box
« Reply #34 on: June 21, 2019, 07:52:33 PM »
Are you handling the bulbs with tissue paper or something other than your bare hand? I've been told that your skin oil on the surface of the bulb will cause them to fail prematurely, don't know if that's a wives tale or not but I play it safe and grab them with my old roller dog napkin.
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Re: Hot Box
« Reply #35 on: June 21, 2019, 08:34:53 PM »
Has anyone tested electric cords for how high temperature they will stand?  How much heat can romex take?  Do you have to run conduit in the hot box for electric wiring?

Offline WDH

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Re: Hot Box
« Reply #36 on: June 21, 2019, 08:48:08 PM »
I routinely operate my kiln for several days at a time at 150 degrees and have had no issues with the wiring. 
Woodmizer LT40HDD35, John Deere 2155, Kubota M5640SU, Nyle L53 Dehumidification Kiln, and a passion for all things with leafs, twigs, and bark.  hamsleyhardwood.com

Offline caveman

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Re: Hot Box
« Reply #37 on: June 21, 2019, 09:06:07 PM »
I was using nitrile gloves when I installed the bulbs, no cotton gloves here.  The wire is now 12/2 wg direct burial.  The next plan is to add another fan and put a fan aimed at each light fixture.  The box heats up quickly and even a couple of hours after pulling the plugs, the interior of the box was 111.  It think that if we can get the bulbs to live this thing may work.  The wires outside the box were not hot so I do not think we had a lot of resistance causing the voltage to drop.  The spray adhesive failed that we used to put triangle pieces in the corners but the foam seems fine.  Maybe we will use skewers or something else to pin the additional insulation in place.

Who would have thunk drying wood and killing stuff would be such an ordeal?
Caveman

Offline Don P

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Re: Hot Box
« Reply #38 on: June 21, 2019, 09:29:20 PM »
Has anyone tested electric cords for how high temperature they will stand?  How much heat can romex take?  Do you have to run conduit in the hot box for electric wiring?

The insulation on the wires inside the romex jacket are rated for 90C, 194F. If exposed it is subject to damage so should be in conduit, which would be thhn wire, it has the same temp rating.
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Offline GeneWengert-WoodDoc

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Re: Hot Box
« Reply #39 on: June 22, 2019, 09:05:18 AM »
In an empty kiln, the bulbs will get a lot hotter than in a kiln with lumber.  The lumber keeps the kiln air cooler, as the lumber "uses" the heat.  

But you do need good air flow around the bulbs to allow for the heat to be carried away, with or without lumber in the kiln.

As it appears that your bulbs are over heating, the wires right at or close to the bulb can be over heated too.  Check the insulation to see if it is dark and brittle.  With the flammability of wood dust at low temperatures, a smoke alarm is a wise choice, if it will work in the kiln humidity and temperature.  If the alarm goes off, DO NOT OPEN THE DOOR before you have water running in the fire fighting hoses, as opening of the door adds oxygen and the fire can explode in an instant.  Also, make sure you have a gfi circuit and that the fuses at close to the expected amperage draw, so if the wire insulation fails, the fuse will pop off.  You might even want to have a circuit that is automatically going to be shut off the bulbs when the fans are not running.  Kiln fires do occur.

Using halogen bulbs does have a fire risk if something goes wrong.
Gene - Author of articles in Sawmill & Woodlot and books: Drying Hardwood Lumber; VA Tech Solar Kiln; Sawing Edging & Trimming Hardwood Lumber. And more


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