Eberspacher heater location

[haydude]

My Bavaria's engine compartment has quite a lot of space over the engine.

Would there be any counter-indication to fit the Eberspacher heater there?

Another option is in a compartment under the bunk in the starboard cabin, right in front of the diesel tank. Plenty of space there too and a distance of at least 30cm from the tank. Any counter-indication there? From that compartment there are already pre-cut holes for the ducting to run all the way forward, it almost looks like the space was designed for an heater. The port cabin holds the calorifier in the same space, in front of the water tank.

 

[ghostlymoron]

If you fit it under a bunk, be aware that they are not silent.

 

[haydude]

Thank you.

Are there any counter-indications to fit the heater in the engine compartment? Does anybody have an heater there?

 

[Heckler]

Thank you.

Are there any counter-indications to fit the heater in the engine compartment? Does anybody have an heater there?

Both mine have been fitted in the sugar scoop, easy access to the hull wall for the exhaust thru hull, plus plenty of fresh air for combustion. Also note that the engine space gets pretty hot when the engine is run for long periods. Also take care to place the tick tick pump away from cabins , mounted on rubber!, that tick will drive you crazy at night! (dont ask!)
Stu

 

[akyaka]

Ours is fitted at the back of the engine bay on a couple of B & Q gallows brackets with the return air ducted from an adjoining deck locker and has worked fine to date - 3 years.

 

[haydude]

Ours is fitted at the back of the engine bay on a couple of B & Q gallows brackets with the return air ducted from an adjoining deck locker and has worked fine to date - 3 years.

Thank you!

Do you mean inside the engine bay, at the back, or at the back "behind" the engine bay?
What boat make/model do you have?

 

[rob2]

Sorry, can't help directly as I don't know the particular boat - though it sounds like there is already provision for it there. I am looking for a suitable location on my boat and in seeking guidance I have found a number of useful manuals and installation guides which can be downloaded free from http://eberspacher.com/support-and-downloads/technical-documents.html.

Rob.

 

[Heckler]

My Bavaria's engine compartment has quite a lot of space over the engine.

Would there be any counter-indication to fit the Eberspacher heater there?

Another option is in a compartment under the bunk in the starboard cabin, right in front of the diesel tank. Plenty of space there too and a distance of at least 30cm from the tank. Any counter-indication there? From that compartment there are already pre-cut holes for the ducting to run all the way forward, it almost looks like the space was designed for an heater. The port cabin holds the calorifier in the same space, in front of the water tank.

I had forgotten, dont Bavs have the Eber place ready "drilled" and the trunking holes cut?
Stu

 

[haydude]

I had forgotten, dont Bavs have the Eber place ready "drilled" and the trunking holes cut?
Stu

I found the ducting holes. The Eber's place ... that is what I have been looking for in the last two posts. The sugar scoop was suggested, there is plenty of space there, but very little on a vertical and transversal position. Most is taken by other accessories. Which means a likely fabrication of a structure to hold the bracket. Also by fitting it there I would loose plenty of heat before it can get where I want it, saloon, and the forward cabin.

Hence my posts.

 

[akyaka]

at the back "behind" the engine bay

Yes its behind the engine fixed to the side wall . I am lucky with access as I have a nearly full length removable panel at the side of the quarter berth.With this sort of arrangement and taking return air from the deck locker you need a controller with in built or separate temperature sensor in the saloon as the basic controller sensor is in the return air part of the unit which is always cold air.

 

[pvb]

Are there any counter-indications to fit the heater in the engine compartment? Does anybody have an heater there?

My Eberspacher is in the engine compartment, more or less directly over the engine. The location has benefits in that the engine compartment tends to have better sound insulation than ordinary lockers, and it places the heater more centrally in the boat for ducting runs.

I would strongly suggest you fit a silencer in the air ducting as the hot air leaves the heater - this makes a massive difference to noise levels in the cabins.

 

[Mistroma]

Just in case you do decide to fit the Eber quite high up in the engine compartment:

I remember being on board a mobo 3-4 years ago when an eber was being installed. It wouldn't start and guy fitting it phoned back to his workshop. He was told that it was a common problem and that they weren't very good at priming unless height between tank & Eber was quite small.

Eber was re-located slightly lower and pump "frigged" to prime the tube into a cup sitting lower than the tank. Everything was fine once fuel pipe connected to Eber and it started on next try.

Probably best to check the manual as I expect it has suggested max. height above tank in there somewhere. You should be able to download a copy.

 

[pvb]

Just in case you do decide to fit the Eber quite high up in the engine compartment:

I remember being on board a mobo 3-4 years ago when an eber was being installed. It wouldn't start and guy fitting it phoned back to his workshop. He was told that it was a common problem and that they weren't very good at priming unless height between tank & Eber was quite small.

Eber was re-located slightly lower and pump "frigged" to prime the tube into a cup sitting lower than the tank. Everything was fine once fuel pipe connected to Eber and it started on next try.

Probably best to check the manual as I expect it has suggested max. height above tank in there somewhere. You should be able to download a copy.

It's unlikely to be a problem. The pump will suck fuel up about 1 metre, and pump it up about another 1 or 2 metres.

 

[fireball]

Our feed pipe is quite long and we had to manually prime the tube before the heater would start

 

[Heckler]

My Bavaria's engine compartment has quite a lot of space over the engine.

Would there be any counter-indication to fit the Eberspacher heater there?

Another option is in a compartment under the bunk in the starboard cabin, right in front of the diesel tank. Plenty of space there too and a distance of at least 30cm from the tank. Any counter-indication there? From that compartment there are already pre-cut holes for the ducting to run all the way forward, it almost looks like the space was designed for an heater. The port cabin holds the calorifier in the same space, in front of the water tank.

For info
http://www.eberspacher.com/downloads/technical-documents/marine_installation_22278.pdf
Stu

 

[Mistroma]

Ah, the penny dropped, I said that the heater was moved. Now I remember, it was the pump that they moved. Sorry about that.

It was fitted fairly close to the tank but was above it because there was a convenient place to bolt it on and easy access. It was moved to a position around the middle of the tank (wrt height).

I looked at the installation diagram and that shows the pump mounted lower than the top of the tank.

I was correct in thinking that they didn't prime very well but all that's needed is to make certain you fit the pump low down near the tank. Makes sense now.

I guess it would be normal to fit the pump near the tank anyway. Of course the only time I remember a problem was on a mobo where the area holding the tank was big with a big storage area on top. If tank was under 1/2 full then it could easily have been over 1m from fuel to initial pump position.

 

[Dave_Seager]

Another option is in a compartment under the bunk in the starboard cabin...

Eberspacher state quite emphatically that "the heater must not be installed into any accommodation area."

 

[David2452]

Eberspacher state quite emphatically that "the heater must not be installed into any accommodation area."

As indeed do Webo & Mikuni, this is largely due to the possibility of exhaust leakage and pulling in warm air to the combustion chamber instead of cool (more oxygen), and yet the same does not apply to trucks, motor homes etc when correctly installed. In most instances it cannot be done in a boat but there are exceptions, as a for instance if you have a locker which is sited over the engine room you can cut a hole for the truck type mounting plate and use the silicone plate to heater gasket so the entire exhaust and combustion intake is sited in the engine room and separated from the unit in the accommodation, this is normally only achievable on mobos however. If you do it that way the heater should be the only thing in the locker and the recirculated air should be trunked in from outside the locker.