Vevor 5kw Diesel Heater Part 1

[Chiara’s slave]

My ducting is all factory fitted. It’s maybe 1.5m to the saloon outlet and another 4m to the fore cabin. The splitter is buried somewhere. Both outlets work perfectly well. The fore cabin has it’s own flap for directing/closing off. The saloon is just a fixed vent.

 

[Refueler]

I suppose the air flow is sufficient to push all along ...

The length I am looking at is probably 3+m into main cabin ... then another 5+m to forecabin aft part ...

 

[Refueler]

Here's a rough sketch ...

There are two items that influence where in the locker to mount tank and heater ..

Port side fwd in locker is a GRP 'cylinder' that LPG ballon drops into ... it basically segregates the ballon from the gear and prevents damage to regulator etc. Its a real pain to get cylinder in / out - but it does its job. To move the ballon etc. would be major surgery job in there ... plus re-routeing gas piping.
Its right where I would prefer to have the heater ... because then outlet pipe run is easy into cabin avoiding the nav station.
To mount heater other side away from that - would mean angled outlet piping to cross over to run into cabin port side.
I need to look again under nav station and into underbunk lockers. Maybe stbd side is ok.

Centre fwd bulkhead of the locker has the Ancorlina Reel bolted to it - right where best to have tank ! It has been a thought to unbolt the reel and fit as most people do - to the pushpit rail. Then the bulkhead would be freed up.

 

[[193211]]

Exhaust wise, this is worth a look:

Eberspacher Marine Exhaust System 2m with Integrated Silencer 24mm ID, Night Heater Kits, Eberspacher, Webasto, Mikuni, Durite

Seems pricey but when you consider the cost of the individual parts it’s not far off. You can buy tubular lagging that goes over the whole thing, further reducing surface temps.

 

[Refueler]

Exhaust wise, this is worth a look:

Eberspacher Marine Exhaust System 2m with Integrated Silencer 24mm ID, Night Heater Kits, Eberspacher, Webasto, Mikuni, Durite

Seems pricey but when you consider the cost of the individual parts it’s not far off. You can buy tubular lagging that goes over the whole thing, further reducing surface temps.

Nice - but then I am in Latvia .... if I buy from UK .. I have high cost shipping and then Customs on top ...

Its best I stick with Planar or Autoterm .... to avoid costs.

 

[[193211]]

Nice - but then I am in Latvia .... if I buy from UK .. I have high cost shipping and then Customs on top ...

Its best I stick with Planar or Autoterm .... to avoid costs.

Fair play.
If you’re running the exhaust through a locker and you’d like to bring the surface temperature of the exhaust down, I think this kind of setup works well. You end up with layers of insulation and a reasonable air gap around the exhaust. I’m pretty sure the constituent parts are available from the usual outlets.

 

[Refueler]

My ducting is all factory fitted. It’s maybe 1.5m to the saloon outlet and another 4m to the fore cabin. The splitter is buried somewhere. Both outlets work perfectly well. The fore cabin has it’s own flap for directing/closing off. The saloon is just a fixed vent.

What about the exhaust - when it exits the hull - I assume you have a through hull flanged fitting to make it neat ?

 

[Refueler]

Fair play.
If you’re running the exhaust through a locker and you’d like to bring the surface temperature of the exhaust down, I think this kind of setup works well. You end up with layers of insulation and a reasonable air gap around the exhaust. I’m pretty sure the constituent parts are available from the usual outlets.

Its actually fair bit of kit that I would like ... I just need to see about inside EU source.

As you see in the sketch I posted ... I need to consider the LPG ballon etc. and cannot accept increasing locker temp more than a good summers day level ...

I will not change from LPG setup for cooking ... but would look to improve segregation of the two systems ...

 

[fredrussell]

Here's a rough sketch ...

That’s quite a long run on the ducting side of things. You might find that outlet in forepeak has much lower output than saloon though it’s a smaller area I assume so perhaps no problem. Might be an idea to join one of the Facebook Chinaspacher groups to see if others have ducted that far, you don’t want to stress the fan.
For this reason I put mine in the middle of the boat, in one of the heads lockers. It’s certainly nice and easy to work on there and involved minimal furniture/bulkhead jiggery pokery - my least favourite task

 

[Chiara’s slave]

Yes, the one that came with the previous installation. I’ll be swapping that out for a new one soon, as it’s alloy, and is gradually turning into white dust.

 

[Refueler]

Yes, the one that came with the previous installation. I’ll be swapping that out for a new one soon, as it’s alloy, and is gradually turning into white dust.

??? Sorry trying to connect that with posts ... ?? Are you talking silencer ?

 

[Refueler]

That’s quite a long run on the ducting side of things. You might find that outlet in forepeak has much lower output than saloon though it’s a smaller area I assume so perhaps no problem. Might be an idea to join one of the Facebook Chinaspacher groups to see if others have ducted that far, you don’t want to stress the fan.
For this reason I put mine in the middle of the boat, in one of the heads lockers. It’s certainly nice and easy to work on there and involved minimal furniture/bulkhead jiggery pokery - my least favourite task

What did you do with exhaust ?

The LPG system has a vertical exhaust and a Tophat vent on deck .. you can see it to left in front of self tacker track in the photo ..

According to Vevor manual - exhaust should not rise higher than the bottom of the heater .. so I should not use the LPG exhaust stack ... shame as originally I thought to .. with heater set under the hanging locker midships ...
I shelved that idea though as I don't like idea of the heater being there ... rather have it where I can get at it easy in the transom locker. The locker - I've actually got inside it ! I'm not small .. fat actually !

 

[PaulRainbow]

??? Sorry trying to connect that with posts ... ?? Are you talking silencer ?

No, through hull fitting.

 

[Refueler]

No, through hull fitting.

Tks ...

I'm reading - posting while sorting out Chinese Reports !! Makes it a bit awkward to catch up sometimes.

 

[Refueler]

Yes, the one that came with the previous installation. I’ll be swapping that out for a new one soon, as it’s alloy, and is gradually turning into white dust.

Now Pauls let me know its the through hull ... the kit I have doesn't have one .. so that is on list as well ... mmm would like to get angled to suit transom ..

So far it looks like :

Decent clear fuel line
Stainless exhaust pipe - length to check
Stainless marine silencer
Lagging for exhaust
Exhaust through hull stainless
Extra heater out piping - length to check
Lagging for heater out pipe
Stainless clips to replace chinese
Maybe splitter if more than one outlet
Extra outlet maybe

Its interesting when you start to consider placing of items .. initially I thought about exhaust exit on the 1/4 - but its a sail boat .. they tend at times to be washing decks !! So that outlet could actually be below water at times ... so back to transom C/L and as high as possible - subject to heater level.
Heater itself needs to be away from other objects - safely segregated from gas ballon etc.
List goes on ...

It will be good to look at pals Banner 31 ... its a similar style boat ... just a bit smaller .. which will amplify the mount considerations. He's had it in 2 yrs - so will have various info to impart about good / bad I hope.

 

[Refueler]

mmm Here's a question ...

Given that I have an inclined stern ... would the exhaust be prone to having water enter and collect in the pipe ?

 

[PaulRainbow]

mmm Here's a question ...

Given that I have an inclined stern ... would the exhaust be prone to having water enter and collect in the pipe ?

If you use this style of fitting (no idea of quality, but looks reasonable and is a good price) : 24mm For Boat Car Thru Hull Exhaust Skin Fitting Tube Pipe Air Diesel Heater sd | eBay

I'd look to fit it on the center line, but low enough to have the pipe come from the through hull, loop up to the underside of the deck and then down to the heater.

 

[[193211]]

As close to the c/l as practical, min of 30cm above the waterline?

Have a look at this eBay shop for ideas. I’ve even seen 90 degree skin fittings from them (there might be reason Eber don’t offer those so proceed with caution)
Ss Fabrications | eBay Stores

I think the Eber marine manual states a max length of 2m for a silenced exhaust with a total of 270 degrees of bend which is worth considering.

 

[Refueler]

If you use this style of fitting (no idea of quality, but looks reasonable and is a good price) : 24mm For Boat Car Thru Hull Exhaust Skin Fitting Tube Pipe Air Diesel Heater sd | eBay

I'd look to fit it on the center line, but low enough to have the pipe come from the through hull, loop up to the underside of the deck and then down to the heater.

Funny that .. the same item on eBay.de (I have started use German eBay to avoid EU dues ... but once calculated - only advantage with the German is delivery time .. (actually - quite often choosing Chinese - can be cheaper as often customs don't bother here ... even though last year they changed to exact dues on ALL regardless of how low a price !)

Vevor are clear about not raising exhaust above heater bottom .. but I cannot see why not have loop up underdeck .. I wonder if Vevor are just quoting to avoid people having vertical / near vertical pipe and end .. most likely.

 

[Refueler]

As close to the c/l as practical, min of 30cm above the waterline?

Have a look at this eBay shop for ideas. I’ve even seen 90 degree skin fittings from them (there might be reason Eber don’t offer those so proceed with caution)
Ss Fabrications | eBay Stores

I think the Eber marine manual states a max length of 2m for a silenced exhaust with a total of 270 degrees of bend which is worth considering.

Plenty of angled / bent / all sorts I know ..

At a guess - I reckon I will have about 1m to go to exit ...