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Main Boards => The Bowyer's Bench => Topic started by: Mad Max on January 04, 2014, 09:14:00 AM

Title: Light bulbs / Heat source / Curing box
Post by: Mad Max on January 04, 2014, 09:14:00 AM
I was going to build a hot box, but with the manufacturing of bulbs fazing out I'am not sure what to do.
Should I use a Heat strip?? or any suggestions??
Where can I buy a heat strip If so??
Title: Re: Light bulbs / Heat source / Curing box
Post by: goobersan on January 04, 2014, 09:46:00 AM
I went with the hot box since heat strips are more expensive and prone to problems. You should still be able to find heat lamp type bulbs for years to come. Just purchase a few backup bulbs and you should be fine for many years
Title: Re: Light bulbs / Heat source / Curing box
Post by: jsweka on January 04, 2014, 10:10:00 AM
I guy on another archery form posted this.  I haven't tried this company yet, but it may be the go-to source.


http://www.newcandescent.com/store/customer/

http://www.theblaze.com/stories/2013/12/24/a-manufacturer-found-a-loophole-around-that-incandescent-light-bulb-ban/
Title: Re: Light bulbs / Heat source / Curing box
Post by: Mad Max on January 04, 2014, 03:43:00 PM
Thanks Guy's
Title: Re: Light bulbs / Heat source / Curing box
Post by: Furtaker on January 05, 2014, 08:18:00 AM
Not sure about anywhere else but my local lowes still had 200 watt bulbs on the shelves. They were labeled industrial use.
Title: Re: Light bulbs / Heat source / Curing box
Post by: Blog on Bottom on January 05, 2014, 08:58:00 AM
(Dying to say something political, but won't since this is an archery forum   :mad:  )
My daughter and I are gearing up to build our first bow this year and I was wondering the same thing. Since this issue is common to all of us, I'll be watching for ideas that work. Thanks...
Title: Re: Light bulbs / Heat source / Curing box
Post by: smartbomb on January 06, 2014, 08:24:00 AM
if i recall, halogen outdoor floods are still going to be available.  these give plenty of heat. don't ask how I know...fingers are still sore.
Title: Re: Light bulbs / Heat source / Curing box
Post by: LittleBen on January 06, 2014, 08:53:00 AM
FWIW, those CFL bulbs only convert about 10% of the energy into light, the other 90% is heat ... so if you use the same total watts as you were with incandescent bulbs, you will have very similar heat output from the bulbs (about 7-10% less heat with CFL, than incandescent)
Title: Re: Light bulbs / Heat source / Curing box
Post by: fujimo on January 06, 2014, 09:31:00 AM
whats a CFl, Ben. are those the halogens?
Title: Re: Light bulbs / Heat source / Curing box
Post by: LittleBen on January 06, 2014, 09:36:00 AM
compact fluorescent ... the twisty ones.

I guess the only question is how they stand up to the heat of a heat box.
Title: Re: Light bulbs / Heat source / Curing box
Post by: fujimo on January 06, 2014, 09:39:00 AM
guess one could just do some dry runs, and test then- no bows in the box! we dont have problems up here getting the 200's....yet!!
Title: Re: Light bulbs / Heat source / Curing box
Post by: virgil.v on January 06, 2014, 09:51:00 AM
Google:
Heat Bulbs, ceramic heat bulbs   ;)
Title: Re: Light bulbs / Heat source / Curing box
Post by: Mad Max on January 06, 2014, 03:56:00 PM
QuoteOriginally posted by jsweka:
I guy on another archery form posted this.  I haven't tried this company yet, but it may be the go-to source.


 http://www.newcandescent.com/store/customer/  

 http://www.theblaze.com/stories/2013/12/24/a-manufacturer-found-a-loophole-around-that-incandescent-light-bulb-ban/  
I ordered 12
Thanks
Title: Re: Light bulbs / Heat source / Curing box
Post by: JamesV on January 07, 2014, 07:22:00 PM
When this issue came up several years ago I bought a liftime supply of 100 watt bulbs for cheap before they became unavaliable. We all knew this was comming for years. Not like the bulbs dissapeared overnight
Title: Re: Light bulbs / Heat source / Curing box
Post by: Mad Max on January 07, 2014, 09:15:00 PM
QuoteOriginally posted by JamesV:
When this issue came up several years ago I bought a liftime supply of 100 watt bulbs for cheap before they became unavaliable. We all knew this was comming for years. Not like the bulbs dissapeared overnight
Not all of us where building bows years ago.   :o
Title: Re: Light bulbs / Heat source / Curing box
Post by: scars on January 07, 2014, 09:59:00 PM
I'm trying something different. I bought one of the oil barrel heater wraps and placed it screwed to a 1/4"x 36" aluminium at the bottom of my box. My box is 7'x18"x24 and the box gets to 160. I have used unibond 800 in it at 10:1, I can turn the heat off in 3 hours. Bow grip 100 same also smooth on.

To get to 180 degrees I am thinking of getting one more wrap and placing them on the sides of the box.
Title: Re: Light bulbs / Heat source / Curing box
Post by: scrub-buster on January 07, 2014, 09:59:00 PM
I recently built a hot box for drying staves. I made a circle opening on each end that matches up to a small space heater.  I get nice warm air movement through the insulated box.  If its to warm I move the heater back a couple inches.  I built it on shelf brackets in the garage so it is up and out of the way.  I think you guys are talking about laminated bows where you need a precise temperature.
Title: Re: Light bulbs / Heat source / Curing box
Post by: Kopper1013 on April 26, 2014, 08:36:00 AM
Hi guys never posted before but here we go. I've read using heat lamps and halogen bulbs can creat hot spots in your box(not evenly heating). I just completed my hot box but have yet to make a bow.
      I first tried 100W bulbs from lowes only got the box to 70 degrees.
Title: Re: Light bulbs / Heat source / Curing box
Post by: Kopper1013 on April 26, 2014, 08:40:00 AM
Also I forgot to add I use a heating thermostat from Bingham projects to maintain between 150-180 degrees for proper cure.
Title: Re: Light bulbs / Heat source / Curing box
Post by: Pat B on April 26, 2014, 09:16:00 AM
Is your box insulated. Mine has 1/2" foil backed foam board on the inside. I also have a Bingham's thermo and 3, 100w bulbs would get my box to temp quickly.
Title: Re: Light bulbs / Heat source / Curing box
Post by: Kopper1013 on April 27, 2014, 10:31:00 AM
Go to you local electrical supply house. I was able to get 300W bulbs there. I bought the 200W bulbs first but they only got my box to 139 degrees. I've read that halogen bulbs and heat lamp bulbs creat hot spots in your box and will cause the epoxy to cure at different paces.
Title: Re: Light bulbs / Heat source / Curing box
Post by: Kopper1013 on April 27, 2014, 10:33:00 AM
Whoops double post still trying to figure all this out lol
Title: Re: Light bulbs / Heat source / Curing box
Post by: MCNSC on April 27, 2014, 10:20:00 PM
I recently built a hot box. The local Lowes had 150 watt bulbs I think they were for shop use. I also believe they had 200 watt bulbs. 4 of the 150 would get it up to temp in my unheated shop when it was below freezing outside. 3 bulbs will work when it is warmer.
Title: Re: Light bulbs / Heat source / Curing box
Post by: Kopper1013 on April 28, 2014, 08:00:00 PM
My box is made of 1/2" maple ply wood and foil lined inside. Dimensions are 84"L x 24H x 16W so it's a pretty large area to heat and 200W bulbs just didn't cut it.
Title: Re: Light bulbs / Heat source / Curing box
Post by: Mad Max on May 11, 2014, 06:59:00 PM
QuoteOriginally posted by jsweka:
I guy on another archery form posted this.  I haven't tried this company yet, but it may be the go-to source.


 http://www.newcandescent.com/store/customer/  

 http://www.theblaze.com/stories/2013/12/24/a-manufacturer-found-a-loophole-around-that-incandescent-light-bulb-ban/  
I bought 12  150 watt, I received 60 watt
It is hard to contact them, they don't follow up

I sent the 60 watt back with a note, I still don't have my bulbs.