I believe they are wrong; there is no "metric BTU." In Customary, "M" is commonly used as the Roman numeral meaning thousand, so MM is thousand thousand or a million. This is VERY common with BTU.
________________________________ From: Mark Henschel <mwhensch...@gmail.com> To: U.S. Metric Association <usma@colostate.edu> Cc: U.S. Metric Association <usma@colostate.edu> Sent: Sunday, November 30, 2014 6:03 PM Subject: [USMA:54493] RE: Dyson I was looking at an energy related website and they mentioned something called a mmBTU which they expressed as a "million metric BTU's. How is a mmBTU different from a normal BTU and why not just use Joules or Gigajoules? Mark Henschel On Sat, Nov 29, 2014 at 1:36 PM, Martin Vlietstra <vliets...@btinternet.com> wrote: Mike, > >If you visit >http://www.dyson.co.uk/support/dc50/dc50-animal-erp/using-your-dyson-machine/where-is-the-serial-number-locateddc50 > you can see where the serial number is located. > >Martin > >From:owner-u...@colostate.edu [mailto:owner-u...@colostate.edu] On Behalf Of >Martin Vlietstra >Sent: 29 November 2014 18:13 >To: U.S. Metric Association >Subject: [USMA:54490] RE: Dyson > >Bonjour Mike > >I checked out my own Dyson (A DC01 model), and the manufacturer’s serial >number plate gives its maximum consumption 1200 watts. On the DC01, the plate >is located at the back of the machine at ground level. Such plates are of >importance in the UK as all our appliances are required to have a fuse in the >plug and fuses are typically 3 amps, 5 amps and 13 amps. > >Regards > >Martin > >From:owner-u...@colostate.edu [mailto:owner-u...@colostate.edu] On Behalf Of >Michael Payne >Sent: 29 November 2014 13:07 >To: U.S. Metric Association >Subject: [USMA:54488] Dyson > >I’ve been trying to find the power consumption of the Dyson >DC50http://www.dyson.com/shop/productcompare.aspx?ProductSelection=DC50-Animal_DC24-Animal > >Very poorly edited web site, under “suction Power” you can click the “i” and >it will say Air Watts, what the hell are Air Watts? And Gallons, which Gallons >are we talking about? > >Reason is I’m over in France and have a couple of transformers, just so me or >my wife do not plug things into the wrong transformer I’m writing the Wattage >on each 120 V appliance. But do you think I can find the power consumption of >this Dyson in the manual or on the unit itself? Amazing! > >Mike Payne
