Posted: Fri Aug 23, 2019 12:05pm
Post Subject: Calorifier heating coil supplyHi Tony, I need to plumb the two rubber hoses from our marinised engine (Mercedes OM601 diesel) to the calorifier heating coil. We have a central walkway in the engine room with the engine offset to one side and the calorifier to the other (Trad 70ft narrow boat with hydraulic drive). Because of this layout, the route the hoses have to take is around 2.5 metres in each direction. Do you think the engine's water pump will push the water this far or just ignore this circuit and continue to circulate via the skin tank? The marinising pipework is 22mm copper and I'm using 1" internal diameter rubber hoses with 3/4" fittings on the calorifier. Have you seen issues with a long pipe run like this before? Thoughts? Stephen