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Post by Jim on Dec 22, 2019 10:34:53 GMT
Hmm... I have it on top of the stove connected to the multimeter and it seems to work today??!!?? Some clues for where to wire because I don't know. The PWM controller on/off switch isn't on/off. Each time it's pressed it sends 12v to "something" in the controller that then switches it to the opposite state. It doesn't physically make and break the circuit. Each time I connect it, the PWM switches the pump on. To switch it off needs another pulse via it's on/off button, or disconnect the supply. I think I've answered my own question by writing it out - the pipe stat should be in the feed to the PWM? I must have offended Nick, sorry Nick for not knowing the details of the pump electronics or stating earlier than I did that someone else had one that they controlled successfully with PWM. If that's it. Well, after all this you will be able to go into business fitting boat heating systems, a true expert.
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Post by lollygagger on Dec 22, 2019 11:19:57 GMT
Hmm... I have it on top of the stove connected to the multimeter and it seems to work today??!!?? Some clues for where to wire because I don't know. The PWM controller on/off switch isn't on/off. Each time it's pressed it sends 12v to "something" in the controller that then switches it to the opposite state. It doesn't physically make and break the circuit. Each time I connect it, the PWM switches the pump on. To switch it off needs another pulse via it's on/off button, or disconnect the supply. I think I've answered my own question by writing it out - the pipe stat should be in the feed to the PWM? I must have offended Nick, sorry Nick for not knowing the details of the pump electronics or stating earlier than I did that someone else had one that they controlled successfully with PWM. If that's it. Well, after all this you will be able to go into business fitting boat heating systems, a true expert. Luckily, knowing enough to know I don't know enough is not enough.
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Post by lollygagger on Dec 22, 2019 11:23:49 GMT
I now have pipe thermostat. I could wire in the supply to the PWM speed controller, or between the PWM and the pump. Neither work. The pump pumps the whole time whatever I set the stat at. It's "on" at a settable temp 0-40degs C. It's about 12c in the boat so turning the dial up to max (40) should show open circuit...but doesn't according to my multi meter on ohms. Maybe it's a duff stat... Any suggestions? Another problem is the pump stutters rather than starting at lower speeds. I guess it doesn't like the PWM much. Damn this heating malarky! Yes you have wired it wrong, have a look at the instructions it can be either a off stat or on stat! ask me how I know Oops! Right stat, wired the wrong way round as you say. Eventually I became unconfused. π It's too warm for a fire but it works on the stove top while that's still warm.
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Post by Andyberg on Dec 22, 2019 11:30:03 GMT
A thermostatic switch working correctly yesterday.ππ
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Post by lollygagger on Dec 22, 2019 11:35:15 GMT
A thermostatic switch working correctly yesterday.ππ Twat.
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Post by Andyberg on Dec 22, 2019 11:47:59 GMT
Actually this thread has resulted in me investigating my central heating, which is why that pic was available to takeπ When running my webasto alls good (not using the thermo switch/ pump), but since fitting my front room radiator and moving my switch, Iβd noticed my rads werent getting as hot as they used to when using my Bubble stove( I originally put it down to starting burning kerosene on it). After reading this thread and with closer inspection, I saw Iβd knocked the switch to pump permanently on, now put back to 45β and alls good again. So...your incompetence has been responsible for making my sytem super efficient again...Thanks palπ
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Post by lollygagger on Dec 22, 2019 11:53:10 GMT
Actually this thread has resulted in me investigating my central heating, which is why that pic was available to takeπ When running my webasto alls good (not using the thermo switch/ pump), but since fitting my front room radiator and moving my switch, Iβd noticed my rads werent getting as hot as they used to when using my Bubble stove( I originally put it down to starting burning kerosene on it). After reading this thread and with closer inspection, I saw Iβd knocked the switch to pump permanently on, now put back to 45β and alls good again. So...your incompetence has been responsible for making my sytem super efficient again...Thanks palπ Twat.
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paulj
Junior Member
Posts: 16
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Post by paulj on Dec 22, 2019 12:27:28 GMT
A thermostatic switch working correctly yesterday.ππ I will raise you one..ππ Which must make me an even bigger twat π
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Post by peterboat on Dec 22, 2019 17:44:45 GMT
Actually this thread has resulted in me investigating my central heating, which is why that pic was available to takeπ When running my webasto alls good (not using the thermo switch/ pump), but since fitting my front room radiator and moving my switch, Iβd noticed my rads werent getting as hot as they used to when using my Bubble stove( I originally put it down to starting burning kerosene on it). After reading this thread and with closer inspection, I saw Iβd knocked the switch to pump permanently on, now put back to 45β and alls good again. So...your incompetence has been responsible for making my sytem super efficient again...Thanks palπ My bubble is on kero as well it burns much cleaner [glass cleaning occasionally rather than after every use] the btus for kero is only slightly lower than diesel, and have you adjusted the toby valve to suit kero?
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Deleted
Deleted Member
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Post by Deleted on Dec 22, 2019 17:48:02 GMT
I've had a look at the kero v gasoil situation and it seems that kero is a bit more expensive than gasoil unless you can bunker large quantities from a road vehicle (tanker) which means 500 litres or more and you have a tank suitable for rapid filling* . Fuel boats don't usually supply kero.
Another thing I found with kero is that it really stinks. Definitely a cleaner burning fuel though to be fair.
*Correction welcomed on this.
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Post by peterboat on Dec 22, 2019 18:10:50 GMT
I've had a look at the kero v gasoil situation and it seems that kero is a bit more expensive than gasoil unless you can bunker large quantities from a road vehicle (tanker) which means 500 litres or more and you have a tank suitable for rapid filling* . Fuel boats don't usually supply kero. Another thing I found with kero is that it really stinks. Definitely a cleaner burning fuel though to be fair. *Correction welcomed on this. Have a look at 200 litre barrels
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Deleted
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Post by Deleted on Dec 22, 2019 18:22:38 GMT
I had a price a couple of weeks ago for 205 litre barrels of red diesel / gasoil Β£170 delivered to the boat. The same people didn't sell kero. I suppose it probably is a bit cheaper. It certainly is a lot cheaper in larger quantities.
The barrels are an interesting option I agree.
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Post by Andyberg on Dec 22, 2019 18:52:16 GMT
Kero is 62p a litre where I go 4 miles away, normally get 3 jerry cans full at a time my roof tank is 60l, I can fit them under the bonnet of my car π
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Deleted
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Post by Deleted on Dec 22, 2019 18:56:02 GMT
Bloody Porsche drivers.
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Post by Telemachus on Dec 22, 2019 19:51:07 GMT
Hmm... I have it on top of the stove connected to the multimeter and it seems to work today??!!?? Some clues for where to wire because I don't know. The PWM controller on/off switch isn't on/off. Each time it's pressed it sends 12v to "something" in the controller that then switches it to the opposite state. It doesn't physically make and break the circuit. Each time I connect it, the PWM switches the pump on. To switch it off needs another pulse via it's on/off button, or disconnect the supply. I think I've answered my own question by writing it out - the pipe stat should be in the feed to the PWM? I must have offended Nick, sorry Nick for not knowing the details of the pump electronics or stating earlier than I did that someone else had one that they controlled successfully with PWM. If that's it. No you havenβt offended me at all. I stopped reading when you seemed to be saying that the back boiler wasnβt putting out enough heat to heat the radiators. There didnβt seem much point in going any further! But it can be difficult to answer your questions when we havenβt been told exactly which stat you have / photos etc, ditto which PWM etc. It is very easy to be looking at the things in front of you and sort of presuming that everyone else can see the same thing - which of course they canβt! In order to get the right answers, you need to ask the right questions and provide enough info for a super intelligent but non-telepathic being to provide them!
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