Bestevaer 49ST

[sailnautilus]

We have a 52' Kanter aluminum yacht with a set up of two integral aluminum saddle tanks for water (125 gallon each) and a separate stainless tank for drinking (50 gallons), similar to yours.
In actual usage and living aboard, this is a brilliant arrangement. Through a system of valves, we can fill the any tank from either the watermaker or the deck fills. In actuality, we always fill the stainless tank from the watermaker, which then has a dedicated faucet in the galley.
The aluminum tanks are often filled at dock, which we use for all purposes except drinking. In a pinch can fill these from watermaker as well. You will love your system!!!!

[Seaworthy Lass]

Originally Posted by sailnautilus

We have a 52' Kanter aluminum yacht with a set up of two integral aluminum saddle tanks for water (125 gallon each) and a separate stainless tank for drinking (50 gallons), similar to yours.
In actual usage and living aboard, this is a brilliant arrangement. Through a system of valves, we can fill the any tank from either the watermaker or the deck fills. In actuality, we always fill the stainless tank from the watermaker, which then has a dedicated faucet in the galley.
The aluminum tanks are often filled at dock, which we use for all purposes except drinking. In a pinch can fill these from watermaker as well. You will love your system!!!!

And here I was thinking this was unique .
Thanks for the feedback.

Our SS tank can only be filled via the watermaker, but there is a seperate tap in the galley for fresh water from the main tanks. This also provides us with some redundancy.

SWL

[Seaworthy Lass]

Originally Posted by mrm

Ah, there is a cap. OK, I was curious, as you went for other design choices to minimize water pooling/leaks (raised hatches etc.).

Here are a couple of close up photos of the outlet for the Refleks chimney. The Staysail "track" can be seen behind it:

[Jim Cate]

Angela, what is the purpose of the "ditch" around the stovepipe penetration?

Jim

[redsky49]

Originally Posted by Jim Cate

Angela, what is the purpose of the "ditch" around the stovepipe penetration?

Jim

I'm curious too. I would have thought it would be proud of the adjacent surfaces rather than recessed.

And the flue is stainless, no? How did they weld it to the aluminum deck???

(Aside: Sorry for all the questions. Just naturally nosy, I guess. Or maybe a bit of vicarious pleasure as well.)

[Sailmonkey]

Originally Posted by redsky49

I'm curious too. I would have thought it would be proud of the adjacent surfaces rather than recessed.

And the flue is stainless, no? How did they weld it to the aluminum deck???

(Aside: Sorry for all the questions. Just naturally nosy, I guess. Or maybe a bit of vicarious pleasure as well.)

It's called a Charlie noble, the recess is to hold water to prevent heat transfer to the surrounding deck structure.

https://www.google.com/search?q=char...vmOt3FsK4yLrM:

[redsky49]

Thanks for the info. I had always thought the Charlie Nobel was the cap:



Obviously, I don't have any experience with marine gas furnaces!

Cheers!

[redsky49]

Sailmonkey. On second thought your explanation does not make sense.

What makes you think that the recess would typically be full of water? And with flue gases probably somewhere between 350-500 degrees F, any water would rapidly boil/evaporate away.

Instead, I think the recess is to accumulate the condensation that will form, and to prevent the (rusty) condensate from running down the deck and staining the aluminum surfaces. Even with stainless steel flues and weather cap, soot and salt air is going to result in rust and corrosion. Maybe this is a means to corral it.

I think the pipe section shown is just the collar for the actual flue pipe. Aluminum is not suitable for an exhaust flue. At first glance I thought what I was seeing was the stainless steel flue itself. I now believe that it is aluminum. We will have to wait for Seaworthy Lass to enlighten us.

Anyone else want to take a stab at this???

[DeepFrz]

It actually is the deck iron and it is filled with water to dissipate the heat.

[Seaworthy Lass]

Sailmonkey and DeepFrz, thanks for the explanation.

I assumed the well was just to add air space for insulation (new to diesel drip heaters here). I hadn't considered that it was a moat. Redsky, check out Sailmonkey's link that leads to a discussion thread about this moat.

Next time I see an owner I will ask how often the water needs to be topped up. In that Wooden Boat Forum discussion several members commented they never bother with putting any water in at all. The extra mass provides some heat dissipation.

If water is vital, we will need to toss a coin to see who gets to go out on those chilly nights. I can't imagine the water lasting long either. At least if it is raining we will be saved the chore .

SWL

[TeddyDiver]

Originally Posted by redsky49

Sailmonkey. On second thought your explanation does not make sense.

What makes you think that the recess would typically be full of water? And with flue gases probably somewhere between 350-500 degrees F, any water would rapidly boil/evaporate away.

You over estimate the heath, that is unless one is wintering in the arctic. In most conditions drip oil heater runs about 5 to 10% of it's rated output.

BR Teddy

[TeddyDiver]

Originally Posted by Seaworthy Lass

If water is vital, we will need to toss a coin to see who gets to go out on those chilly nights. I can't imagine the water lasting long either. At least if it is raining we will be saved the chore .

SWL

There's an easy trick to avoid that. Take a filled water bottle with a nozzle, put a piece of tubing on the nozzle the other end with short copper pipe with a hole , set the water bottle upsidedown (locking bicycle bottle holder on a stay) close the chimney so the tubing runs down to charlie noble.
Water sinks, the hole comes above the water, sucks air in the bottle, water runs down..

Looks very DIY, a real discussion opener with quests on board

BR Teddy

[Wotname]

Originally Posted by Seaworthy Lass

....... I hadn't considered that it was a moat. Redsky, check out Sailmonkey's link that leads to a discussion thread about this moat.

Next time I see an owner I will ask how often the water needs to be topped up. .........

It's a MWM and no water is required.















Mulled Wine Moat



Sorry Lassie, I couldn't help myself

[Seaworthy Lass]

Originally Posted by Wotname

It's a MWM and no water is required.

In that case I'll make sure I stock up on extra supplies of cinnamon and nutmeg (skipping the cloves - they remind me of the dentist). Red wine is always plentiful .

SWL

[Pelagic]

Originally Posted by redsky49

Instead, I think the recess is to accumulate the condensation that will form, and to prevent the (rusty) condensate from running down the deck and staining the aluminum surfaces. Even with stainless steel flues and weather cap, soot and salt air is going to result in rust and corrosion. Maybe this is a means to corral it.

I think the pipe section shown is just the collar for the actual flue pipe. Aluminum is not suitable for an exhaust flue. At first glance I thought what I was seeing was the stainless steel flue itself. I now believe that it is aluminum. We will have to wait for Seaworthy Lass to enlighten us.

Anyone else want to take a stab at this???

I like this explanation as a containment well to minimize staining.... Also the added surface area and chamfered / rolled profile would prevent sheer stressses and act as an expansion profile for the deck around the hot chimney.

Again, the workmanship looks great.