4 ms·
Coming from Europe, I've never seen an AC unit expressed in BTU/hour. To me it seems much more logical to express it in kW. The only "strange" (but correct) no
by Faaak 9y ago
Coming from Europe, I've never seen an AC unit expressed in BTU/hour. To me it seems much more logical to express it in kW.
The only "strange" (but correct) notation was on a french train, the AC was expressed in kcal/hour
- y4mi 9y agoThen you've probably never had to plan cooling for a server room. BTU's are often the only metric you get from the servers datasheet.
- walrus01 9y agoI find that these are occasionally very inaccurate. If possible put a prototypical server on a watt meter and artificially load cpu, disk and ram to determine its real world max wattage and thermal values. Then compare to what its wattage is while idle.
- altcognito 9y agoAt the scale of a server room, you're estimating over an aggregate and probably want some overhead/room to expand.
- walrus01 9y agoAt the scale of a small to medium colocation facility you define W per cabinet... Such as a typical 44U height cabinet in a row designed for front to back airflow. 5kW per cabinet would be a normal low range, up to 10-12kW. Then figure out your floor spacing and sq ft usage to determine how many cabinets.
- make3 9y ago"Then you've probably never had to plan cooling for a server room." For an American one you mean
- y4mi 9y agoi'm german, so no. but i admit that its incredibly rare to find localized data sheets. they're generally en_us, not that it really matters.
- Animats 9y ago1 watt = 3.412 BTU/hr.
- mavhc 9y agoEven British people don't use BTU
- vidarh 9y agoEvery AC I've bought in the UK (5 so far) have been rated only in BTU.