Diesel tank under a bunk - problems?

[Forbsie]

Are there any issues with installing a diesel tank under a bunk? I seem to remember someone saying that the temperature difference caused condensation.

I have just spent ages trying to work out how to get a bigger tank under the aft deck then thought, why not move it forward and put a gas locker where the current tank is.

 

[Hoolie]

Our boat has had the fuel tank under the aft double berth from when it was built. I have never seen more than a few drops of water in the fuel/water separator so I don't think condensation is a problem!

 

[Athene V30]

I have a flexible fuel tank under the pilot berth.

Only issue is it takes up a useful stowage space but I suppose the fuel can be handy on occasions too.

 

[thomashoebus]

We have the diesel tank under the 2 aft bunks. No problems with water in the separator so far. I have the boat 5 years now. Besides the diesel tank is in the same compartment as the engine.

 

[pyrojames]

I think the condensation issues relate to the underside of the bunk, rather than in the diesel tank. As the diesel is a large cool thermal mass, you have a higher chance of getting condo under your mattress. That said, I had water tanks under some infrequently used bunks and never had a problem with them.

 

[johnalison]

Our 140L S/S tank is under a saloon berth and we've had no problems. The water-tank is also under a berth forwards and it does get a bit manky in there.

 

[PeterGibbs]

Don't think condensation is the problem, but the expansion pipe and vent could be. If not well sited and sealed, the merest whiff of diesel fumes could make life on board, especially in a seaway, rather gruesome!

PWG

 

[sailorman]

we have water & diesel s/s tanks midships under saloon berths with no probs except for filling the diesel "coffin " tank /forums/images/graemlins/frown.gif

 

[ShipsWoofy]

Better than an electric blanket?

 

[Forbsie]

Re: Better than an electric blanket?

Oh it never occurred to me that it would save putting a radiator in the cabin. /forums/images/graemlins/grin.gif

Thanks guys for all your input. It was more the condensation under the bunk that I was thinking about. I am trying to plan it that the bunk will take a proper off-the-shelf mattress and I'm sure that I'll find one of the ventillation options suitable for underneath.