On Fri, Jan 23, 2009 at 7:02 PM, Captain Beeky <[email protected]> wrote: > > On 23 Jan 2009, at 17:12, Michael Askin wrote: >> My JP2 never seems to get hot enough to be able to do this sort of >> thing! :-( > > Thermostat ? > > Our JP3 does a super job of heating the calorifier, within 30 mins of > start up, but we have some kind of non marine/non Lister thermostat > arrangement in the pipe to the skin tank. At least I assume we have a > skin tank ! > Lets hope so! :-)
I've seen a thermostat on another JP2 (Towcester), and unless they are working hard down the canal it's always turned off! I asked if anything was OK because no water was coming out, but, no everything was fine. It's raw water on Victoria, so it's always bringing in cold water. There is a bypass valve (marked "cold" and "warm"), which looking at the plumbing makes the water bypass the engine and discharge straight back overboard. Not sure what the return temp is on a skin tank, but I bet it's not canal water temp (or even river water temp, depending on where you are). Mike -- Michael Askin http://shoestring_DOT_zapto_DOT_org/
