600w HPS BTU Output?

Hoping someone can help me figure this out. I am looking to put a new water cooled system into my grow room using a chiller, and hydro innovations ice box.

As the title says, I am trying to find out how many BTU's an hour a 600w HPS light puts out. I was told that a 600 puts out something around 4k btu's an hour...but all my research says it should be more around the lines of 2k/hr?

You can see where I got these figures here:

http://www.unitconversion.org/power/watts-to-btus-th--per-hour-conversion.html

Anyway, does anybody know for sure how many BTU's a 600w kicks out? I just want to be sure here.

I have a 1/4 HP chiller that is rated for 3k BTU's, so I am really hoping that I was misinformed in the first place (about the 4k btu's). If my chiller can pull 1k BTU's more an hour than my light produces, I should be fine right?

Nothing? Nobody?

Bumped...again.

Seriously, no one has any idea on this one? I've seen guys break down lux, lumens, EC, pH, Co2, and just about everything else to a damn science on here. Yet no one knows how many BTU's are produced by their lights? I find that hard to believe, since it would be a nice piece of info for keeping your room cool...and I have met some extremely smart growers on here.

3.414BTUs per 1 watt

axtorus said:

3.414BTUs per 1 watt

Click to expand...

That's what I thought. So 3.414x600 = 2,048.4

I would think that since my chiller pulls about 952 more btu's an hour than my light puts out, I should be sitting about right.

Thanks for the confirmation man. +Rep