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  3. A question of efficiency?

A question of efficiency?

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  • R realJSOP

    If you reduice the flow, it takes the tub longer to fill up, so the water already in the tub will have longer to cool before the tub reaches the desired level. I think taking a shower would be better than either of your two options. I take what's referred to as a "Navy shower": 0) wet down, turn off water (I have a showerhead with a valve that controls the flow of water. 1) lather up, turn on water to rinse off Done. I bet I use a little less than a gallon of water to shower. We have an electric water heater, and I don't turn the water up much past room temperature.

    ".45 ACP - because shooting twice is just silly" - JSOP, 2010
    -----
    You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
    -----
    "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997

    B Offline
    B Offline
    Ben Breeg
    wrote on last edited by
    #13

    John Simmons / outlaw programmer wrote:

    I think taking a shower would be bette

    I've got four daughters who absolutely must have, without fail, at least 3 baths a week. Bloody teenagers! They can't shower (their words, not mine) because they can't get their hair wet unless they're washing it which they do separately. :doh: :confused:

    I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

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    • M Maximilien

      man up and use cold water.

      Watched code never compiles.

      B Offline
      B Offline
      Ben Breeg
      wrote on last edited by
      #14

      brrrrrr, sod that! :laugh:

      I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

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      • B Ben Breeg

        So there I was, sitting in the bath contemplating the meaning of life when it occurred to me which is the more efficient? Let me elaborate. In our house, the hot water needs are served by an 'on demand' gas boiler. This boiler has a dial which allows setting the hot water temperature. This temperature adjustment is achieved by altering the volume of gas to the burners. The same temperature adjustment can be achieved by altering the flow of water through the taps. I.e, turn the tap down, the water gets hotter because of the water flow reduction. So, here comes the question: which is more economical and energy efficient to fill a bath? A. Turn the temperature up on the boiler (thus increasing the volume of gas burnt) but more water enters the bath so the boiler doesn't need to be on as long. B. Reduce the water temperature on the boiler (thus reducing the gas flow) and then reduce the flow of water at the tap so the water passes the burner slower and thus heats up more but takes longer to fill the bath and hence the burner is on longer albeit not burning as much gas per given moment in time. C. They are the same. D. Who gives a s**t. I'd be interested to hear any thoughts.

        I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

        C Offline
        C Offline
        Chris Meech
        wrote on last edited by
        #15

        What's a bath? :confused:

        Chris Meech I am Canadian. [heard in a local bar] In theory there is no difference between theory and practice. In practice there is. [Yogi Berra] posting about Crystal Reports here is like discussing gay marriage on a catholic church’s website.[Nishant Sivakumar]

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        • B Ben Breeg

          So there I was, sitting in the bath contemplating the meaning of life when it occurred to me which is the more efficient? Let me elaborate. In our house, the hot water needs are served by an 'on demand' gas boiler. This boiler has a dial which allows setting the hot water temperature. This temperature adjustment is achieved by altering the volume of gas to the burners. The same temperature adjustment can be achieved by altering the flow of water through the taps. I.e, turn the tap down, the water gets hotter because of the water flow reduction. So, here comes the question: which is more economical and energy efficient to fill a bath? A. Turn the temperature up on the boiler (thus increasing the volume of gas burnt) but more water enters the bath so the boiler doesn't need to be on as long. B. Reduce the water temperature on the boiler (thus reducing the gas flow) and then reduce the flow of water at the tap so the water passes the burner slower and thus heats up more but takes longer to fill the bath and hence the burner is on longer albeit not burning as much gas per given moment in time. C. They are the same. D. Who gives a s**t. I'd be interested to hear any thoughts.

          I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

          R Offline
          R Offline
          Rage
          wrote on last edited by
          #16

          I must thank you for making me feel less alone in the world of people wondering about such things. I extended the scope to the heating of my flat (better constant heating to a target temperature all day, or better heating off but for two hours in the day with then full heating ?), which is more or less the same.

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          • B Ben Breeg

            So there I was, sitting in the bath contemplating the meaning of life when it occurred to me which is the more efficient? Let me elaborate. In our house, the hot water needs are served by an 'on demand' gas boiler. This boiler has a dial which allows setting the hot water temperature. This temperature adjustment is achieved by altering the volume of gas to the burners. The same temperature adjustment can be achieved by altering the flow of water through the taps. I.e, turn the tap down, the water gets hotter because of the water flow reduction. So, here comes the question: which is more economical and energy efficient to fill a bath? A. Turn the temperature up on the boiler (thus increasing the volume of gas burnt) but more water enters the bath so the boiler doesn't need to be on as long. B. Reduce the water temperature on the boiler (thus reducing the gas flow) and then reduce the flow of water at the tap so the water passes the burner slower and thus heats up more but takes longer to fill the bath and hence the burner is on longer albeit not burning as much gas per given moment in time. C. They are the same. D. Who gives a s**t. I'd be interested to hear any thoughts.

            I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

            H Offline
            H Offline
            HimanshuJoshi
            wrote on last edited by
            #17

            Z. Use cold water! It's summer anyways.

            B T 2 Replies Last reply
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            • B Ben Breeg

              So there I was, sitting in the bath contemplating the meaning of life when it occurred to me which is the more efficient? Let me elaborate. In our house, the hot water needs are served by an 'on demand' gas boiler. This boiler has a dial which allows setting the hot water temperature. This temperature adjustment is achieved by altering the volume of gas to the burners. The same temperature adjustment can be achieved by altering the flow of water through the taps. I.e, turn the tap down, the water gets hotter because of the water flow reduction. So, here comes the question: which is more economical and energy efficient to fill a bath? A. Turn the temperature up on the boiler (thus increasing the volume of gas burnt) but more water enters the bath so the boiler doesn't need to be on as long. B. Reduce the water temperature on the boiler (thus reducing the gas flow) and then reduce the flow of water at the tap so the water passes the burner slower and thus heats up more but takes longer to fill the bath and hence the burner is on longer albeit not burning as much gas per given moment in time. C. They are the same. D. Who gives a s**t. I'd be interested to hear any thoughts.

              I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

              J Offline
              J Offline
              Joan M
              wrote on last edited by
              #18

              Bah! - You should put a small LHC under the bath tube... - Or using used "fried" oil as gasoline in order to be greener (even you go out from the bath you'll smell funny). - Of course the best option here would be to use the DutchTub[^]. Green people to me... bah! :rolleyes:

              [www.tamelectromecanica.com] Robots, CNC and PLC machines for grinding and polishing.

              B 1 Reply Last reply
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              • B Ben Breeg

                So there I was, sitting in the bath contemplating the meaning of life when it occurred to me which is the more efficient? Let me elaborate. In our house, the hot water needs are served by an 'on demand' gas boiler. This boiler has a dial which allows setting the hot water temperature. This temperature adjustment is achieved by altering the volume of gas to the burners. The same temperature adjustment can be achieved by altering the flow of water through the taps. I.e, turn the tap down, the water gets hotter because of the water flow reduction. So, here comes the question: which is more economical and energy efficient to fill a bath? A. Turn the temperature up on the boiler (thus increasing the volume of gas burnt) but more water enters the bath so the boiler doesn't need to be on as long. B. Reduce the water temperature on the boiler (thus reducing the gas flow) and then reduce the flow of water at the tap so the water passes the burner slower and thus heats up more but takes longer to fill the bath and hence the burner is on longer albeit not burning as much gas per given moment in time. C. They are the same. D. Who gives a s**t. I'd be interested to hear any thoughts.

                I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

                C Offline
                C Offline
                Chris Maunder
                wrote on last edited by
                #19

                Sounds very similar to the question of when you should add milk to your tea in order to ensure a hot cup of tea. See Newton's 5/4 Power Cooling Law.

                cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

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                • B Ben Breeg

                  John Simmons / outlaw programmer wrote:

                  I think taking a shower would be bette

                  I've got four daughters who absolutely must have, without fail, at least 3 baths a week. Bloody teenagers! They can't shower (their words, not mine) because they can't get their hair wet unless they're washing it which they do separately. :doh: :confused:

                  I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

                  T Offline
                  T Offline
                  twohowlingdogs
                  wrote on last edited by
                  #20

                  Benjamin Breeg wrote:

                  they can't get their hair wet unless they're washing it which they do separately. :doh: :confused:

                  That is the exact same excuse my ex-wife used as to why she didn't shower every day. I told her Bullsh!t! Then I talk to beuticians and they said you can get your hair wet (don't they walk in the rain or get in water fights?) even if you don't wash it! It's just an excuse to not shower every day. My daughter follows her mother in this nonsense. I guess at least they take a bath when they don't shower which is NOT what my ex did!

                  If you know what I mean...and I think you do...

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                  • C Chris Meech

                    What's a bath? :confused:

                    Chris Meech I am Canadian. [heard in a local bar] In theory there is no difference between theory and practice. In practice there is. [Yogi Berra] posting about Crystal Reports here is like discussing gay marriage on a catholic church’s website.[Nishant Sivakumar]

                    T Offline
                    T Offline
                    twohowlingdogs
                    wrote on last edited by
                    #21

                    It's a method of cleaning the body in a container of water...but that's not important right now....

                    If you know what I mean...and I think you do...

                    1 Reply Last reply
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                    • J Joan M

                      Bah! - You should put a small LHC under the bath tube... - Or using used "fried" oil as gasoline in order to be greener (even you go out from the bath you'll smell funny). - Of course the best option here would be to use the DutchTub[^]. Green people to me... bah! :rolleyes:

                      [www.tamelectromecanica.com] Robots, CNC and PLC machines for grinding and polishing.

                      B Offline
                      B Offline
                      Ben Breeg
                      wrote on last edited by
                      #22

                      Joan Murt wrote:

                      Green people to me... bah! :rolleyes:

                      Sod going green, I'm worried about my meagre pay packet paying for all the gas.

                      Joan Murt wrote:

                      Of course the best option here would be to use the DutchTub[^].

                      Hmmm, I could finally find a use for the trees in the back garden which I've wanted to get rid of for years. :laugh:

                      I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

                      1 Reply Last reply
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                      • C Chris Maunder

                        Sounds very similar to the question of when you should add milk to your tea in order to ensure a hot cup of tea. See Newton's 5/4 Power Cooling Law.

                        cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

                        W Offline
                        W Offline
                        wolfbinary
                        wrote on last edited by
                        #23

                        Spoken like a true nerd. ;P :laugh:

                        That's called seagull management (or sometimes pigeon management)... Fly in, flap your arms and squawk a lot, crap all over everything and fly out again... by _Damian S_

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                        • H HimanshuJoshi

                          Z. Use cold water! It's summer anyways.

                          B Offline
                          B Offline
                          Ben Breeg
                          wrote on last edited by
                          #24

                          HimanshuJoshi wrote:

                          Use cold water! It's summer anyways.

                          Not in England it isn't ;P It's usually freezing, even in summer. Though just to prove me wrong, we've just had the hottest April on record.

                          I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

                          1 Reply Last reply
                          0
                          • H HimanshuJoshi

                            Z. Use cold water! It's summer anyways.

                            T Offline
                            T Offline
                            Tech Code Freak
                            wrote on last edited by
                            #25

                            :thumbsup::thumbsup: :laugh: :laugh: :laugh: :laugh: :laugh: :laugh: by the way, D........Who gives a s**t?

                            1 Reply Last reply
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                            • C Chris Maunder

                              Sounds very similar to the question of when you should add milk to your tea in order to ensure a hot cup of tea. See Newton's 5/4 Power Cooling Law.

                              cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

                              B Offline
                              B Offline
                              Ben Breeg
                              wrote on last edited by
                              #26

                              Chris Maunder wrote:

                              See Newton's 5/4 Power Cooling Law.

                              Nope, still no nearer :confused: But thanks all the same.

                              I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

                              1 Reply Last reply
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                              • B Ben Breeg

                                John Simmons / outlaw programmer wrote:

                                I think taking a shower would be bette

                                I've got four daughters who absolutely must have, without fail, at least 3 baths a week. Bloody teenagers! They can't shower (their words, not mine) because they can't get their hair wet unless they're washing it which they do separately. :doh: :confused:

                                I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

                                L Offline
                                L Offline
                                Lost User
                                wrote on last edited by
                                #27

                                Benjamin Breeg wrote:

                                which they do separately

                                As do I. 30C Hand Wash; 300 spin. :)

                                Everybody is elitist to a certain extent; except me - I'm better than that. Micah

                                1 Reply Last reply
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                                • B Ben Breeg

                                  So there I was, sitting in the bath contemplating the meaning of life when it occurred to me which is the more efficient? Let me elaborate. In our house, the hot water needs are served by an 'on demand' gas boiler. This boiler has a dial which allows setting the hot water temperature. This temperature adjustment is achieved by altering the volume of gas to the burners. The same temperature adjustment can be achieved by altering the flow of water through the taps. I.e, turn the tap down, the water gets hotter because of the water flow reduction. So, here comes the question: which is more economical and energy efficient to fill a bath? A. Turn the temperature up on the boiler (thus increasing the volume of gas burnt) but more water enters the bath so the boiler doesn't need to be on as long. B. Reduce the water temperature on the boiler (thus reducing the gas flow) and then reduce the flow of water at the tap so the water passes the burner slower and thus heats up more but takes longer to fill the bath and hence the burner is on longer albeit not burning as much gas per given moment in time. C. They are the same. D. Who gives a s**t. I'd be interested to hear any thoughts.

                                  I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

                                  W Offline
                                  W Offline
                                  wizardzz
                                  wrote on last edited by
                                  #28

                                  I have a similar problem with brewing tea, only to have it chilled to a very cold temperature so I can enjoy it. I'll post the problem shortly.

                                  Craigslist Troll: litaly@comcast.net "I have a theory that the truth is never told during the nine-to-five hours. " — Hunter S. Thompson

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                                  • B Ben Breeg

                                    John Simmons / outlaw programmer wrote:

                                    I think taking a shower would be bette

                                    I've got four daughters who absolutely must have, without fail, at least 3 baths a week. Bloody teenagers! They can't shower (their words, not mine) because they can't get their hair wet unless they're washing it which they do separately. :doh: :confused:

                                    I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

                                    D Offline
                                    D Offline
                                    Dan Neely
                                    wrote on last edited by
                                    #29

                                    If they're anything like my sisters were at that age, the baths use less water than a shower would; so stop complaining. :laugh:

                                    3x12=36 2x12=24 1x12=12 0x12=18

                                    1 Reply Last reply
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                                    • B Ben Breeg

                                      So there I was, sitting in the bath contemplating the meaning of life when it occurred to me which is the more efficient? Let me elaborate. In our house, the hot water needs are served by an 'on demand' gas boiler. This boiler has a dial which allows setting the hot water temperature. This temperature adjustment is achieved by altering the volume of gas to the burners. The same temperature adjustment can be achieved by altering the flow of water through the taps. I.e, turn the tap down, the water gets hotter because of the water flow reduction. So, here comes the question: which is more economical and energy efficient to fill a bath? A. Turn the temperature up on the boiler (thus increasing the volume of gas burnt) but more water enters the bath so the boiler doesn't need to be on as long. B. Reduce the water temperature on the boiler (thus reducing the gas flow) and then reduce the flow of water at the tap so the water passes the burner slower and thus heats up more but takes longer to fill the bath and hence the burner is on longer albeit not burning as much gas per given moment in time. C. They are the same. D. Who gives a s**t. I'd be interested to hear any thoughts.

                                      I am the Breeg, goo goo g'joob Aici zace un om despre care nu sestie prea mult

                                      A Offline
                                      A Offline
                                      AspDotNetDev
                                      wrote on last edited by
                                      #30

                                      Skinny dip at the nearest lake or, preferably, hot spring (true story: a guy actually got full on naked and used body wash to clean off in front of me and a friend at a hot spring).

                                      [

                                      S<T>::f(U) // Out of line.

                                      ](http://msdn.microsoft.com/en-us/library/8yk3t00s(v=vs.71).aspx)

                                      C D 2 Replies Last reply
                                      0
                                      • A AspDotNetDev

                                        Skinny dip at the nearest lake or, preferably, hot spring (true story: a guy actually got full on naked and used body wash to clean off in front of me and a friend at a hot spring).

                                        [

                                        S<T>::f(U) // Out of line.

                                        ](http://msdn.microsoft.com/en-us/library/8yk3t00s(v=vs.71).aspx)

                                        C Offline
                                        C Offline
                                        Chris Trelawny Ross
                                        wrote on last edited by
                                        #31

                                        And you stayed around to watch? :omg:

                                        A 1 Reply Last reply
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                                        • C Chris Trelawny Ross

                                          And you stayed around to watch? :omg:

                                          A Offline
                                          A Offline
                                          AspDotNetDev
                                          wrote on last edited by
                                          #32

                                          Nope, I stayed to soak and avert my eyes.

                                          [

                                          S<T>::f(U) // Out of line.

                                          ](http://msdn.microsoft.com/en-us/library/8yk3t00s(v=vs.71).aspx)

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