I bought my boat 2 months ago and I'm now trying to get the hot water working. The last owner said it was slow but it didn't work at all, the main problem being a faulty pump I think.
The water is heated by an old boiler made by Ellis and sons, Northampton, via a calorifier.
The boiler also feeds two radiators. The hot water for the radiators does not go via the calorifier, there are t junctions behind the boiler and the pipes go left and right to the two radiators at each end of the boat. The radiators seem to heat up well so I don't think there is a problem with the boiler. (Except that the flame is very orange so it may need a service or clean?)
The problem is somewhere between the two red taps. I replaced my old bolin pump with the cheap black one shown in the pictures to see of this would help, and it has, a bit. However there seems to still be a circulation problem because the boiler flame goes back to pilot at intervals even though the return pipe to the boiler is not hot. After an hour of the boiler being on the return pipe is finally warming up and I can have a warm (Not hot) shower.
My questions are :
1. Why is the flame going up and down before the water is hot?
2. The pump is very loud - has this got anything to do with it? Any tips for making it quieter?
3. What should I do about the fact the flame is so orange?
4. Does anyone know about bolin pumps? There doesn't seem to be anything wrong with mine but it just slowly splutters water.