ethcan said:

Is there an exact BTU/H metric for a 1000w DE HPS ballast running at 100% (Not over or under powered)?

I am curious how much cooling headroom I stand to gain if I switch over to a remote mount setup and keep all of the ballasts out of the heat load.

Thanks in advance.

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madgrower said:

I have 5 1000s and had the ballast in the same room for one day. The heat was ferocious so I put them in the attic

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JWM2 said:

Are they digital ballasts? The old school ballasts I had put out a ton of heat but once I went digital it cut heat down substantially. Of course I’m all LED now.

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Jack og said:

Man the mfg should be able to state the thermal output. Each brand has its data and is required for CE and UL certification

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JWM2 said:

Are they digital ballasts? The old school ballasts I had put out a ton of heat but once I went digital it cut heat down substantially. Of course I’m all LED now.

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Jack og said:

HID grow lights add 3.41 BTUs per watt, per hour (1,000 watts = 3,400 BTUs). In a sealed, windowless 4-by-8-foot grow room in a sunny apartment, about 3,000 BTUs worth of heat

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ethcan said:

Thanks, trying to find out BTU/H of the ballast only, not bulb output.

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