Julian wrote:
> YES the boat only ever did one trip of note from Hebden Bridge to 
York 
> in 5 years. The rest of the time it was on the Rochdale being used 
as a 
> liveaboard and not moving very much at all.

That's as I feared then, it's no wonder it bore glazed.

> OK so there is double the power and half as many cylinders again 
but the 
> principle of light loading still applies to all engines.
> If you consider that a 5hp engine will run a 5kw genset then a 40hp 
boat 
> engine is hardly being loaded even with a 5kw travel power attached 
> running flat out which unless you are running a big aircon or 
heaters it 
> wont be, even with a washing machine, 85% of the washing machines 
cycle 
> is without the heaters so will be about 3-400watts.
> Most use of 230v on a boat (except for charging the boats batteries 
if 
> that is done from 230v) is well under 1500w total except for very 
short 
> periods, so inverters and a dedicated 24v charging generator makes 
far 
> more sense than a travel power both electrically and  
environmentally.

Agreed, but for those that do not want the cost, or perhaps haven't 
the space for a separate genny then a TravelPower is a good option 
particularly if it is used while travelling. I still feel that used 
with intelligence and care, not sitting for weeks on end generating, 
and getting some decent load on the engine when you do travel will 
help to prevent glazing. It's all about the way you use it, as the 
Bishop said to the call-girl ;-)))
Don't forget that, as well as the 5hp for the TP you are also 
charging using the standard engine alternator which will also load 
the engine, especially after a period sat moored up.
The main down-side is that you can't run it on red and the engine is 
also over-specced as a genny but, as you have just the one main fuel 
you only have one tank also, saving room if that is a consideration.
Roger


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