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Hello everyone, I'm hoping someone can help me with a calorifier problem i have. Let me start by saying we bought the boat (1993 50ft widebeam) from a third party who knew nothing about the boat and could only show us it running so this has all been a bit of a learning curve, overcoming problem by problem. The boat has a calorifier fitted approximately 1meter from the engine, but we only seem to have hot water when the engine has been running and the boat moving, and even this is only after 3+ hours. running the engine at idle moored up produces nothing. I have bled the air from the system by running the engine to hot and removing coolant filler cap as well as loosening the fittings for water into the calorifier from engine and return to the engine from calorifier whilst engine was running and hot which revealed there was some air in there. each of these actions were done in turn rather than all at once. coolant is approx 30% antifreeze. Because of the length of time it takes to warm up, I believe the water is heating through thermal conductivity of the water in the system as opposed to circulating round the system. The boat used to have a siren/alarm which screamed out from the instrument panel when the ignition was switched on, which we thought was normal until I had our alternator reconditioned as it wasnt producing any power for the batteries and then the alarm stopped and hasnt been back Additionally, on the instrument panel there is a "charge" "oil" and "water" light. Charge light goes out once engine is on and slight throttle applied as I presume it has now been excited. Oil light is never on, but the water light is always on, ignition on and engine on. there is also a single very thin electicial cable with a female spade elctrical connector on top of the engine, coming from the engine where the water/coolant leaves the engine to flow through the pipe to the calorifier. I have no idea where or what to connect to this cable. Can anyone advise what they think may be the problem or what my next course of action should be before contacting an engineer (and paying dearly for it). I will take photos shortly and try to upload within 24 hours. Could it be the thermostat? circulation pump? faulty electrical connection? Thanks for your help

This weeks oddity from the towpath. A boater has a 24v Victron inverter charger combination. He can get power either from his shore line or the inverter. It charges his batteries when connected to the shore. The inverter shuts down then as it should. It has worked fine for a long while. The one night whilst on the shore line it starts to hum loudly and gets hot. Unplugging the shore line it drops to being an inverter only and shuts up. He now has power. But the shore line will no longer power the boat when it is in charge only mode. Most odd, worried that it sounds expensive. Disconnecting shore line and switching everything to off, reconnect and everything is working normally again ! Any ideas what causes this tantrum?

Hi all, Hopefully someone knows the answer to this. I have an Eberspacher that heats a calorifier. I run the Eber for about an hour and we get a decent amount of hot water for showers. My issue is the amount of time it takes for the hot water to reach the taps. I measured it this morning and it took 12 litres of water before it turned warm. This is the same every time the first person wants hot water. Can anyone suggest why this would happen? The shower is quite close to the calorifier, just a bedroom in between, so I'm finding it hard to make any sense of why it takes the amount of time. Please help!