View Full Version : DLP Heat Output & Internal Temperature


y_not
07-14-07, 11:09 PM
I have noticed the past few weeks as it's been up over 100deg. here /w no A/C. That my DLP really heats up my living room when I run it during the day when it's hottest.

I knew they generated heat, due to the UHP Bulb but I didn't know it was this much.
I'm actually not turning on my TV during the day when it's up in the 90's - 100's as it raises the room temperature a good 20deg. +.


It's not exactly a small space either, it's not huge, but it's not a bedroom. Sorry, don't know the measurements. :o

So I went and did some research, to see how much heat that lamp actually generates.
After some digging I finally found the below article, that indicates the UHP bulb gets 300-350deg. Celsius that's 572deg. - 662deg. Fahrenheit on the outer reflector surface, that's insane!! :eek:
Here's the article: Link (http://www.cd-adapco.com/press_room/dynamics/24/philips.html)

These guys do engineering simulations of heat, stress test, and aero dynamics. Pretty cool company. :D

So what do you guys think?
Any experts out there that can comment on how hot these get when cooled, as I assume these test were done without cooling, I couldn't gleen that just from the article.
Is there anyway to read the temperature of these things, either via the svc. menu, or maybe the Svc. Port via USB, serial, etc...?

broketoo
07-15-07, 07:37 AM
I have noticed the past few weeks as it's been up over 100deg. here /w no A/C. That my DLP really heats up my living room when I run it during the day when it's hottest.

I knew they generated heat, due to the UHP Bulb but I didn't know it was this much.
I'm actually not turning on my TV during the day when it's up in the 90's - 100's as it raises the room temperature a good 20deg. +.


It's not exactly a small space either, it's not huge, but it's not a bedroom. Sorry, don't know the measurements. :o

So I went and did some research, to see how much heat that lamp actually generates.
After some digging I finally found the below article, that indicates the UHP bulb gets 300-350deg. Celsius that's 572deg. - 662deg. Fahrenheit on the outer reflector surface, that's insane!! :eek:
Here's the article: Link (http://www.cd-adapco.com/press_room/dynamics/24/philips.html)

These guys do engineering simulations of heat, stress test, and aero dynamics. Pretty cool company. :D

So what do you guys think?
Any experts out there that can comment on how hot these get when cooled, as I assume these test were done without cooling, I couldn't gleen that just from the article.
Is there anyway to read the temperature of these things, either via the svc. menu, or maybe the Svc. Port via USB, serial, etc...?

I am NO expert.

Well all I can tell you, heat is bad for any type of electronics. I would probalby be terrified to turn on TV in a room with temp of 85F or higher. Though Tosh manual says operating temp up to 95F is OK. What does your says? I have A/C cooling the entire house and I never let it go beyond 80F.

I would just invest in an A/C of some sort.

MOtvGuy
07-15-07, 10:00 PM
They get very hot.

BizarroTerl
07-15-07, 10:40 PM
The bulb has to get hot to work properly.

PaulGo
07-15-07, 10:45 PM
The bulb is either a 100 watt bulb or a 120 watt bulb so it should not give off any more heat than a conventional 100 watt or 120 watt light bulb.

BizarroTerl
07-16-07, 11:04 AM
The wattage doesn't correlate exactly to temperature.

videobruce
07-16-07, 11:32 AM
...........but it is a good starting point. Possibly a small fan behind the set to dissipate the heat.

90+ degrees in Washington state. Yep, absolutely no truth to global warming. :rolleyes:

hjw
07-16-07, 08:38 PM
1 Watt = 3.41 BTU's/Hr.

100 x 3.41 = 341 BTU's/Hr.

1 BTU is the amount of heat it takes to raise the temperature of 1 pound of water 1 degree F.

Heat is the enemy of electrical components. Have you considered installing A/C?