GUMPY Posted February 19, 2021 Report Share Posted February 19, 2021 Thatbis an absoloute joy. Link to comment Share on other sites More sharing options...
Tim Lewis Posted February 20, 2021 Report Share Posted February 20, 2021 2 Link to comment Share on other sites More sharing options...
ditchcrawler Posted December 1, 2021 Report Share Posted December 1, 2021 1 Link to comment Share on other sites More sharing options...
MtB Posted December 1, 2021 Report Share Posted December 1, 2021 On 20/02/2021 at 20:10, Tim Lewis said: By listening to the fan speed, I can tell if my stove needs attending to. Link to comment Share on other sites More sharing options...
George and Dragon Posted December 1, 2021 Report Share Posted December 1, 2021 On 20/02/2021 at 20:10, Tim Lewis said: On a boat, where the stove is in free air, this may very well be true. However, in a building where the stove is in a fireplace it's probably quite a good idea to push the heated air out into the room. Link to comment Share on other sites More sharing options...
Feeby100 Posted December 1, 2021 Report Share Posted December 1, 2021 Well all I can say is there pants don’t do noting at all Link to comment Share on other sites More sharing options...
Alan de Enfield Posted December 1, 2021 Report Share Posted December 1, 2021 43 minutes ago, Feeby100 said: Well all I can say is there pants don’t do noting at all Surely is they 'don't do nothing', they must be doing something. 1 hour ago, ditchcrawler said: Aldi shoppers know they do 'nothing' - the stillage is still full - not one sold. 1 Link to comment Share on other sites More sharing options...
MtB Posted December 1, 2021 Report Share Posted December 1, 2021 24 minutes ago, Alan de Enfield said: Surely is they 'don't do nothing', they must be doing something. Aldi shoppers know they do 'nothing' - the stillage is still full - not one sold. Well as I said above, I don't even have to get out of bed to know if the stove needs more coal, I can tell by listening to the Ecofan. I know of at least one other boater who uses theirs for the same purpose. Link to comment Share on other sites More sharing options...
Guest Posted December 1, 2021 Report Share Posted December 1, 2021 (edited) The aldi one at £17.99 looks identical in all respects to our genuine Caframo Ecofan which cost probably three times that. Nothing ventured nothing gained. Edited December 1, 2021 by The Happy Nomad Link to comment Share on other sites More sharing options...
Hudds Lad Posted December 2, 2021 Report Share Posted December 2, 2021 On the old shareboat, a quick glance through the hatch and down the cabin to see how fast the fan was spinning told us if the stove needed more fuel. Can’t do this on new boat so no point getting a fan. Plus it saves me having to screw everything down so the mighty fan doesn’t blow it all down the boat 1 1 Link to comment Share on other sites More sharing options...
Jim Riley Posted December 3, 2021 Report Share Posted December 3, 2021 Ok deniers, explain this... I put a kettle on my stove, without the fan the kettle will boil, with the fan it only simmers. Where is the extra heat going, to make a difference? When I have the fan on the woodstove at home the temperature is even throughout the room, without it there are cold spots in the corners. Leave the room doors open and the warm air spreads around the house. On the boat it sends the heat to the cold end of the boat. Link to comment Share on other sites More sharing options...
matty40s Posted December 3, 2021 Report Share Posted December 3, 2021 24 minutes ago, Jim Riley said: Ok deniers, explain this... I put a kettle on my stove, without the fan the kettle will boil, with the fan it only simmers. Whoever told you that Ecofans drink tea?? 2 Link to comment Share on other sites More sharing options...
Jerra Posted December 3, 2021 Report Share Posted December 3, 2021 28 minutes ago, Jim Riley said: Ok deniers, explain this... I put a kettle on my stove, without the fan the kettle will boil, with the fan it only simmers. Where is the extra heat going, to make a difference? When I have the fan on the woodstove at home the temperature is even throughout the room, without it there are cold spots in the corners. Leave the room doors open and the warm air spreads around the house. On the boat it sends the heat to the cold end of the boat. My mate uses two in his cabinetmaking workshop and the workers down the far end know whether they are on the woodburner or not. 1 Link to comment Share on other sites More sharing options...
Kiwidad Posted December 3, 2021 Report Share Posted December 3, 2021 I have my eco fan pointed at a rubber tube which runs the length of the boat and exits at the back. Don’t need to use the engine for propulsion in winter 😎 1 Link to comment Share on other sites More sharing options...
matty40s Posted December 3, 2021 Report Share Posted December 3, 2021 45 minutes ago, Kiwidad said: I have my eco fan pointed at a rubber tube which runs the length of the boat and exits at the back. Don’t need to use the engine for propulsion in winter 😎 Well , the boat hasnt moved in weeks so perhaps your tube is blocked. Link to comment Share on other sites More sharing options...
TheBiscuits Posted December 3, 2021 Report Share Posted December 3, 2021 5 minutes ago, matty40s said: Well , the boat hasnt moved in weeks so perhaps your tube is blocked. I can still get YouTube .... 1 Link to comment Share on other sites More sharing options...
matty40s Posted December 3, 2021 Report Share Posted December 3, 2021 34 minutes ago, TheBiscuits said: I can still get YouTube .... Ah, but Kiwi has RubberTube.... I'm not sure we want to go into that one , do we... 1 Link to comment Share on other sites More sharing options...
Kiwidad Posted December 3, 2021 Report Share Posted December 3, 2021 1 hour ago, matty40s said: Well , the boat hasnt moved in weeks so perhaps your tube is blocked. Just over a week to go, plus a MRSA test, Covid test and angiogram and we will be off! 1 Link to comment Share on other sites More sharing options...
matty40s Posted December 3, 2021 Report Share Posted December 3, 2021 Ive told you .... dont need those big sounding depth finders round here, the bottom will find you without asking. #CRTdredging..... Link to comment Share on other sites More sharing options...
enigmatic Posted December 7, 2021 Report Share Posted December 7, 2021 Also on sale at Lidl now, with three blades rather than Aldi's two. Mine looks very pretty Link to comment Share on other sites More sharing options...
ditchcrawler Posted December 7, 2021 Report Share Posted December 7, 2021 19 minutes ago, enigmatic said: Also on sale at Lidl now, with three blades rather than Aldi's two. Mine looks very pretty Aldi had sold out here Link to comment Share on other sites More sharing options...
IanD Posted December 7, 2021 Report Share Posted December 7, 2021 (edited) On 03/12/2021 at 18:36, Jim Riley said: Ok deniers, explain this... I put a kettle on my stove, without the fan the kettle will boil, with the fan it only simmers. Where is the extra heat going, to make a difference? When I have the fan on the woodstove at home the temperature is even throughout the room, without it there are cold spots in the corners. Leave the room doors open and the warm air spreads around the house. On the boat it sends the heat to the cold end of the boat. You could get exactly the same effect by sitting a nice big heatsink with no fan on your stove, it cools the stove down by helping conduct heat away from it into the air, like a radiator. An Ecofan does just the same, but it only turns a tiny fraction of that heat into useful power to drive the fan because thermoelectric generation is horribly inefficient. See here, where after optimisation of the design (and you can bet most ecofan suppliers don't do this!) one passing over 600W of heat generated about 8W of power -- so I think it's safe to say that most of them will be less than 1% efficient... https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6025646/ Edited December 7, 2021 by IanD Link to comment Share on other sites More sharing options...
ditchcrawler Posted December 7, 2021 Report Share Posted December 7, 2021 4 minutes ago, IanD said: You could get exactly the same effect by sitting a nice big heatsink with no fan on your stove, it cools the stove down by helping conduct heat away from it into the air, like a radiator. An Ecofan does just the same, but it only turns a tiny fraction of that heat into useful power to drive the fan because thermoelectric generation is horribly inefficient. See here, where after optimisation of the design (and you can bet most ecofan suppliers don't do this!) one passing over 600W of heat generated about 8W of power -- so I think it's safe to say that most of them will be less than 1% efficient... https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6025646/ Surely they must be 100% efficient as all dissipated energy is used to warm the room, 1 Link to comment Share on other sites More sharing options...
Jim Riley Posted December 7, 2021 Report Share Posted December 7, 2021 5 minutes ago, IanD said: You could get exactly the same effect by sitting a nice big heatsink with no fan on your stove, it cools the stove down by helping conduct heat away from it into the air, like a radiator. An Ecofan does just the same, but it only turns a tiny fraction of that heat into useful power to drive the fan because thermoelectric generation is horribly inefficient. See here, where after optimisation of the design (and you can bet most ecofan suppliers don't do this!) one passing over 600W of heat generated about 8W of power -- so I think it's safe to say that most of them will be less than 1% efficient... https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6025646/ But they still work, for 20 beer tokens it's a no brainer. A simple heat sink would keep the heat in the vicinity of the stove,, assisted by convection, whereas there is a greater airflow with the fan. Link to comment Share on other sites More sharing options...
Mike Todd Posted December 7, 2021 Report Share Posted December 7, 2021 (edited) 4 minutes ago, ditchcrawler said: Surely they must be 100% efficient as all dissipated energy is used to warm the room, I was about to ask the same! Where does the absorbed heat energy go if not into electricity, radiated heat or noise energy? (Actually the latter is after the conversion process, anyway) Edited December 7, 2021 by Mike Todd Link to comment Share on other sites More sharing options...
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