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  • #31
    Re: Calculating Your Machines Energy Consumption...

    Rather than messing about calculating it - why not just get one of those wattmeter thingies (eg this from jaycar: http://www.jaycar.com.au/productView.asp?ID=MS6115) and run it for a while and see? From memory, my expobar minore costs about $0.10 for the first 1/2 hour (warming up) and then runs at about $0.03 per hour when not making shots (assuming about $0.20/kWh). Unless you are making a _lot_ of coffee and steam I suspect most of the energy used will be making up for the heat lost to the surroundings (depending on things like how well insulated the boiler is, what the ambient temperature is, how fast the air is moving across the front, is your group shrouded or stitting proudly out the front of the machine etc etc), rather than heating the relatively small amounts of water used (not true for a thermoblock setup of course).

    As a bonus, you can then measure all the other stuff eating power in your house, which will probably be quite a lot scarier than the coffee machine

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    • #32
      Re: Calculating Your Machines Energy Consumption...

      Originally posted by 707C6F7E1D0 link=1248135212/29#29 date=1252929866
      2mcm its the ECM A1....bigger boiler than Giotto
      That makes sense...My Ven S1 had one too

      2mcm

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      • #33
        Re: Calculating Your Machines Energy Consumption...

        Hi all,
        I timed my San Marino SME-2 today for 5 cycles and found that it was on for 23 seconds and off for 150 and each cycle was within a second difference. My boiler is 10.5 litres and the element is 4700W.
        Surprised, I thought it would be on a lot more than that.

        Sooty

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        • #34
          Re: Calculating Your Machines Energy Consumption...

          Originally posted by 575B5252515147585B56340 link=1248135212/32#32 date=1253003624
          Hi all,
          I timed my San Marino SME-2 today for 5 cycles and found that it was on for 23 seconds and off for 150 and each cycle was within a second difference. My boiler is 10.5 litres and the element is 4700W.
          Surprised, I thought it would be on a lot more than that.

          Sooty
          Looking good Sooty.... 8-)

          Mal.

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          • #35
            Re: Calculating Your Machines Energy Consumption...

            I timed my Carimali machine it does 36 Seconds on and 4 minutes 6 seconds off with a 3500W element, no insulation and covers on.

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            • #36
              Re: Calculating Your Machines Energy Consumption...

              Originally posted by 040D400 link=1248135212/30#30 date=1252930907
              Rather than messing about calculating it - why not just get one of those wattmeter thingies (eg this from jaycar: http://www.jaycar.com.au/productView.asp?ID=MS6115) and run it for a while and see? From memory, my expobar minore costs about $0.10 for the first 1/2 hour (warming up) and then runs at about $0.03 per hour when not making shots (assuming about $0.20/kWh). Unless you are making a _lot_ of coffee and steam I suspect most of the energy used will be making up for the heat lost to the surroundings (depending on things like how well insulated the boiler is, what the ambient temperature is, how fast the air is moving across the front, is your group shrouded or stitting proudly out the front of the machine etc etc), rather than heating the relatively small amounts of water used (not true for a thermoblock setup of course).

              As a bonus, you can then measure all the other stuff eating power in your house, which will probably be quite a lot scarier than the coffee machine
              I have an energy meter fitted with a wireless readout available... But also us a J-car unit as I can easily see and measure over time..

              No assumptions and rough calculations to contend with.

              KISS

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