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Author Topic: Sonic Projector Heating Blanket Dave Marlow Film Handler Posts: 6 From: Redfield SD USA Registered: Aug 2014 posted 09-09-2014 10:14 AM                     Does anyone know where I can order a heating blanket to cover a digital projector so I don't have to heat the projector room during the winter months? Thanks Dave  |  IP: Logged Marcel Birgelen Film God Posts: 3357 From: Maastricht, Limburg, Netherlands Registered: Feb 2012 posted 09-09-2014 12:57 PM                     I might be totally mistaken, but I've never heard of anybody using a heating blanket, let alone someone producing a specific version for a projector. I don't know if it would be such a smart idea either. Besides that, what about the other equipment in the room? Stuff like servers, sound processor(s), amps?  |  IP: Logged Dave Marlow Film Handler Posts: 6 From: Redfield SD USA Registered: Aug 2014 posted 09-09-2014 01:22 PM                     I Talked to a guy that runs a Drive-In that was using a heater made by Sonic for projectors all our electronics sit underneath the projector, I have never seen one, I thought it might be worth looking into. Thanks Dave  |  IP: Logged Mike Blakesley Film God Posts: 12767 From: Forsyth, Montana Registered: Jun 99 posted 09-09-2014 01:33 PM                        Our projection booth isn't heated. We just leave the door open at closing time. It's cool in there but not coldm even when the outside temp goes below zero.  |  IP: Logged Carsten Kurz Film God Posts: 4340 From: Cologne, NRW, Germany Registered: Aug 2009 posted 09-09-2014 03:42 PM                     Have you ever measured the temperatures in that booth during winter? What kind of winter do you experience there? Are there other parts/areas of that 'building' that need to stay above the freezing point, e.g. water lines? I guess you could just use a common heating blanket with a wall-thermostat. The projector manufacturer should give you information about suitable storage temperatures. - Carsten  |  IP: Logged Dave Marlow Film Handler Posts: 6 From: Redfield SD USA Registered: Aug 2014 posted 09-09-2014 04:50 PM                     Its a Drive-in, we are closed from October till May, all water lines are drained and winterized, temps can fall as low as 20 below 0. Thanks Dave  |  IP: Logged Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 09-09-2014 05:05 PM                        The time honored system in drive ins is to use a light bulb, 15-20 watts in the BOTTOM of the rack, the soundhead, and in the lamphouse. Even at 25 below, you would be surprised how warm the upper rack, etc is. You may not be able to get carbon filament bulbs much longer. They are cheap and easy to get right now. Large wattages are not needed. You could also wrap the devices in the kind of pads the movers use. They are used In Alaska to wrap aircraft engines. All of this works just like putting a bulb under your car hood in Winter.  |  IP: Logged John Eickhof Jedi Master Film Handler Posts: 588 From: Wendell, ID USA Registered: Jan 2000 posted 09-09-2014 06:22 PM                        I've seen em use electric blankets set on low heat, seems to keep the oil in a Brenkert flowing!!  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 09-10-2014 03:55 AM                     Two drive-ins over this way with Barcos don't do anything except put the lens cap on the lens during the winter months.  |  IP: Logged Carsten Kurz Film God Posts: 4340 From: Cologne, NRW, Germany Registered: Aug 2009 posted 09-10-2014 04:32 AM                     quote: Louis Bornwasser The time honored system in drive ins is to use a light bulb, 15-20 watts in the BOTTOM of the rack, the soundhead, and in the lamphouse. What a bad, bad suggestion, Louis! These damned bulbs waste up to 5% of their energy consumption on visible light which is lost to heating the rack. There must be more efficient options! - Carsten  |  IP: Logged Marcel Birgelen Film God Posts: 3357 From: Maastricht, Limburg, Netherlands Registered: Feb 2012 posted 09-10-2014 05:28 AM                     quote: Dave Marlow I Talked to a guy that runs a Drive-In that was using a heater made by Sonic for projectors all our electronics sit underneath the projector, I have never seen one, I thought it might be worth looking into. If you say Sonic, the first thing I think off is that blue hedgehog thing from Sega or burgers and fries. What are you using now? A heater? If not, did you ever check how low it actually goes? That 25 deg. F doesn't really sound that shocking, depending on how well your building is isolated I guess. While it might just work, the idea of wrapping a projector in an electric blanket doesn't make me feel good. Especially because what happens if that thing short circuits or otherwise malfunctions and causes damage from overheating or even fire? Sure, an (electric) heater could also malfunction and start a fire, but that thing isn't wrapped around your expensive equipment, there is still some distance between your equipment and that device. Besides that, I'm not sure if an electric blanket will save power in the end. A heater can be regulated to keep the temperature just above freezing. If that happens just a few times in a year, the total power usage should be low. Can you do the same with a heating blanket? Will it not just constantly drain some power while trying to make the projector feel cozy and warm?  |  IP: Logged Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 09-10-2014 07:52 AM                        Marcel: 25 degrees F. BELOW zero. (-25F) That is cold!  |  IP: Logged Kenneth Wuepper Phenomenal Film Handler Posts: 1026 From: Saginaw, MI, USA Registered: Feb 2002 posted 09-10-2014 12:15 PM                     In the music industry we used a Dampp-Chaser to control humidity. It is very hard on wooden keys and mechanisms with wood,leather and felt all glued together. They also made heaters for clothes closets and cupboards. Here the problem was control of mold and mildew. Look here for more information. http://www.dampp-chaser.com/home.php  |  IP: Logged Frank Cox Film God Posts: 2234 From: Melville Saskatchewan Canada Registered: Apr 2011 posted 09-10-2014 03:01 PM                        quote: 25 degrees F. BELOW zero. (-25F) That is cold! Meh.  |  IP: Logged Mike Blakesley Film God Posts: 12767 From: Forsyth, Montana Registered: Jun 99 posted 09-10-2014 03:16 PM                        Even -25 would never be that cold inside of a building. A little space heater in the booth would keep it livable for a projector, I would think, if the booth was sealed up well.  |  IP: Logged

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