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Re: Bulbs for heat
By:Reg Lake
Date: 1/3/2011, 1:56 am
In Response To: Re: Bulbs for heat *PIC* (Paul G. Jacobson)

: GMTA. Besides giving up heat through the air which circulates
: around them, light bulbs produce radiant heat, which is an
: efficient way to heat objects which they illuminate.

: I've been promoting them for a while, but I never had a decent
: controller, so I just kept them at a safe distance and kept the
: wattage down. 1500 watts kicks out a bit over 5200 BTU, and that
: is about the limit for what I'd put on a single circuit.

: You might be interested in a drawing I did of a warming
: "tent" to keep a kayak warm enough to glass. I think I
: first posted this around the end of 2005, but it is still a
: useful idea. I believe I suggested 4 to 5 bulbs in the 60- to
: 100-watt range, and setting them a couple of feet under the boat
: so they wouldn't scorch things.

: About how much is that controller?

: I've put off building an insulated warming cabinet to preserve my
: paints and glues from freezing in an unheated storage locker. I
: just need to keep things a little over freezing. The plan for
: this year is to heat that cabinet with a 50-watt fish tank
: heater set into a 5 gallon pail of water. The water would get to
: a steady temp of (at most) 70 degrees. If my cabinet stayed that
: warm the unit would shut off. If it got cooler, I'd have a
: constant drain of 50 watts to pay for on my electric bill. About
: a kilowatt a day, or maybe 15 cents. That's a lot cheaper than
: heating the whole unit. I'm not completely happy with the idea,
: though. I'm concerned with the moisture level I might get inside
: a closed cabinet. A constant 40 watt bulb might get too warm,
: but I haven't found any good, and cheap, controllers that might
: go as low as 45 degrees, which is all I need to maintain. There
: are plenty of household thermostats, but those run on 24 volts,
: and a transformer for the thermostat plus a relay for the bulb
: just add to the price. The fishtank heater was only $16, and
: these have good reliability, however, I'm still fishing for more
: ideas on this.

: PGJ

Some interesting ideas here.
Paul, I just checked and found 6 controllers on ebay for $61. Link here.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7609823509#ht_2726wt_926

Best,

Reg

Messages In This Thread

Strip: Cold-weather build idea *PIC*
Darel -- 1/2/2011, 5:48 pm
Re: Strip: Cold-weather build idea *NM* *PIC*
Darel -- 1/2/2011, 5:49 pm
Sssshhhhh...it's sleeping.... *NM* *PIC*
Darel -- 1/2/2011, 5:51 pm
Controller *PIC*
Darel -- 1/2/2011, 5:54 pm
Re: Controller
Kirk Fredericks -- 1/2/2011, 7:41 pm
Re: Controller
Darel -- 1/2/2011, 8:13 pm
Re: Controller
Kirk Fredericks -- 1/2/2011, 8:46 pm
Re: Controller
Darel -- 1/2/2011, 9:05 pm
Re: Bulbs for heat *PIC*
Paul G. Jacobson -- 1/3/2011, 1:22 am
Re: Bulbs for heat
Reg Lake -- 1/3/2011, 1:56 am
Re: Bulbs for heat
Dan Caouette (CSFW) -- 1/3/2011, 6:42 am
Re: Bulbs for heat
Darel -- 1/3/2011, 7:01 am
Re: Bulbs for heat
Darel -- 1/3/2011, 6:57 am
Re: Bulbs for heat
Darel -- 1/3/2011, 8:01 am
A hot subject
Paul G. Jacobson -- 1/3/2011, 6:09 pm
Re: Bulbs for heat
Mike Savage -- 1/3/2011, 8:13 am
thermostat
Will Clarke -- 1/3/2011, 9:51 pm
Re: thermostat
Bill Hamm -- 1/4/2011, 12:55 am
Re: Bulbs for heat - cardbord for cover
Erez -- 1/3/2011, 10:31 pm
Is that a bug-eyed sprite?
Jay Babina -- 1/3/2011, 9:51 am
Re: Is that a bug-eyed sprite?
Darel -- 1/3/2011, 10:05 am
Re: Is that a bug-eyed sprite?
Bill Hamm -- 1/3/2011, 10:44 am
Re: Is that a bug-eyed sprite?
Darel -- 1/3/2011, 10:47 am
Re: Is that a bug-eyed sprite?
Les Cheeseman -- 1/3/2011, 10:55 am
Re: Is that a bug-eyed sprite?
Bill Hamm -- 1/3/2011, 3:30 pm
Re: Is that a bug-eyed sprite?
Jay Babina -- 1/3/2011, 10:46 am
Re: Is that a bug-eyed sprite?
Dave Gentry -- 1/3/2011, 11:14 am
Re: Is that a bug-eyed sprite?
Bill Hamm -- 1/3/2011, 3:26 pm
Re: Is that a bug-eyed sprite?
Paul Montgomery -- 1/3/2011, 9:29 pm
Re: Is that a bug-eyed sprite?
Roy Martin (fadedred) -- 1/3/2011, 9:53 pm
Re: Is that a bug-eyed sprite?
John Roberts -- 1/3/2011, 11:11 pm
Re: Is that a bug-eyed sprite?
Bill Hamm -- 1/4/2011, 12:58 am
Re: Is that a bug-eyed sprite?
Bill Hamm -- 1/4/2011, 1:00 am
Re: Is that a bug-eyed sprite?
Jay Babina -- 1/4/2011, 8:09 am
Re: Is that a bug-eyed sprite?
Mike Savage -- 1/4/2011, 8:18 am
Re: Is that a bug-eyed sprite?
Bill Hamm -- 1/4/2011, 9:29 am
Re: Is that a bug-eyed sprite?
Mike Savage -- 1/4/2011, 4:23 pm
Re: Is that a bug-eyed sprite?
Bill Hamm -- 1/5/2011, 1:31 am
Re: Is that a bug-eyed sprite?
Bill Hamm -- 1/4/2011, 9:26 am
Re: Is that a bug-eyed sprite?
paul davies -- 1/5/2011, 5:19 am
Why the British drink warm beer
Paul G. Jacobson -- 1/4/2011, 1:22 pm
Re: Why the British drink warm beer
Mike Savage -- 1/4/2011, 4:06 pm
Re: Why the British drink warm beer
Robert N Pruden -- 1/7/2011, 9:14 am
Re: Why the British drink warm beer
Bill Hamm -- 1/5/2011, 1:37 am
Re: Why the British drink warm beer
Bill Hamm -- 1/5/2011, 1:39 am
Re: Why the British drink warm beer
Robert N Pruden -- 1/7/2011, 9:18 am
Re: Why the British drink warm beer
Bill Hamm -- 1/7/2011, 9:28 am
Re: Why the British drink warm beer *NM* *PIC*
Thomas Duncan -- 2/18/2011, 12:56 pm
Re: Why the British drink warm beer
Les Cheeseman -- 1/6/2011, 12:23 pm
Re: Why the British drink warm beer
Bill Hamm -- 1/6/2011, 1:02 pm
Re: Why the British drink warm beer
Les Cheeseman -- 1/6/2011, 2:08 pm
Re: Why the British drink warm beer
Bill Hamm -- 1/6/2011, 2:56 pm
Re: Why the British drink warm beer
Les Cheeseman -- 1/6/2011, 4:13 pm
Re: Strip: Cold-weather build idea
Ian Cummins -- 1/2/2011, 7:53 pm