Webasto....couple of questions...

[photodog]

Read the previous thread, Just to clear up....

Any reasons that I should not fit a webasto 2000 airtop?

Boat is 31feet, heater says good for 28-30 feet, dealer says better to work it a bit hard to keep from Sooting up... True or False?

How does it compare to others for power consumption (Amps) ?
Noise versus others?

Anyone put one on a Bavaria 31 circa 99? Seems a bit tight to get the ducts forward.

Any tips for mounting to reduce noise?

How much should I pay for installation? ( just to avoid getting hosed....)

Ta
/forums/images/graemlins/smile.gif

 

[pvb]

2000 should be fine...

The 2000 AirTop should be fine for your boat. Generally, I think it's better to run heaters flat out. However, a 3500 AirTop running at its low output would use less current than a 2000 running at full heat, and might conceivably be quieter. If you ran it flat out now and again it probably wouldn't suffer.

As far as noise reduction is concerned, the 2000 is supplied with an exhaust silencer, I think, otherwise make sure you specify one as an option. You might also specify an optional combustion air intake silencer.

There's a lot of detail on optional bits & pieces in the Webasto Marine catalogue, which interestingly isn't on Webasto's website but is here, lurking in a dark corner of YBW!

 

[wiggy]

Re: 2000 should be fine...

Fitted on to my Spring 25 last year as far as Im aware it has no silencer and seems to not need on either. I have 3 outputs and it works fantastically drawing 2 amps once up and running. The fuel pump and fan are both variable in speed and it seems to maintain heat very well.

 

[PeterGibbs]

The 2000 will do fine for all but the hardest use - ie. living aboard in really cold weather.

I put the 3.5kw in mine (38ft) and it belts out loads of air. Not at all noisy, but you can hear it of course.

Chose three outlets - rear cabin, saloon (main) and heads to dry gear etc. Decided not to run system forward to forecabin -intrusive. Good take - works well, comfortable all through.

Also remember - the longer the ducting run, the more resistance to air movement, so the lower the efficiency/output

There is a limit to the length of exhaust pipe you can install - probably not a problem on your boat, depending where you site the heater: mine in engine compartment. Check out the 2000 for this limitation before you buy.

Otherwise go ahead with confidence. Mine now 8 years old and never a peep of protest. Advice on working it hard not something I can relate to: doubt it it the view of manufactuer -suggest caution on this one.

Use professional installer: cutting wrong hole in wrong place rather a disaster! Tapping into diesel tank culd be challenging, depending on your layout. Allow 4-6 hours labour.

PWG

 

[VicMallows]

I think you need to consider just how you use your boat. I have a 1.8kW heater on my Sadler 29. I never heat the area foreward of the main cabin, keeping the door closed. In cold conditions like we had in Chichester Harbour last night (-3) it takes a good hour to raise the cabin temperature to say 14deg in the morning.

Personally I would go for 3kW if I was installing again, especially if I expected to heat the whole boat. I would also consider a propane rather than diesel next time around --- another story.

Just don't forget the electrical drain!

Vic

 

[pcatterall]

I play about with ebers for retirement pin money. Recent reports suggest that the webasto is quieter than the eber.
My boat uses a gas heater (Trumatic- like propex)
My heater is quieter than the ebers it is mounted in the wheelhouse but is still audible in the saloon. Lesson??... dont site the unit in the saloon!!
Question that occured to me last night -5C my unit sucks in air in the wheelhouse and blows out into the saloon so allways heating cold air, should I duct (heaven forbid! ) the saloon air back to the heater so that the heater can eventually build a good warm fug?? ( ie re-circulate??) Please note that I am not talking about the air for combustion.
Also be aware that the pump itself can be a bit obtrusive, not loud but be careful not to have it on a bulkhead near your head!!
Also insulation of the ducting is important , I cannot leave my hand 4" in front of my heater outlet for more than 2 seconds but after only 4' of ducting can do this for 10" or more. This is insulated ducting so where is the heat loss?
I am looking at using smooth bore ducting rather than this corrugated stuff which I believe drastically reduces air flow.
Incidently my heater is rated at 2.4 k but was only just coping with last nights -5 and I was ducting only into the saloon.
If I replace it I will be looking for 4k and risk the coking up!!
Good luck

 

[PeterGibbs]

Peter Caterall's experience worth considering:

1. Diesel pump does emit clicking sound that can be heard through one bulkhead in saloon. But will be the same whether 2 or 3.5kw. Not enough to prevent sleep.

2. His account emphasises my point - if used in tough conditions - very cold outside - 2kw will be pushing it. If 3.5kw fundable, would go for that. Size of burner should be little different.

3. My installation uses recycled air for interior- intake in aft cabin and unstopped outlet in saloon (one outlet has to be unstopped to prevent accidental closure of louvre and overheating- so site it where you'll always need hot air - saloon in my case.)

4. But air intake for combusiton is in casing of exhaust pipe - so warms it on way in with exhaust on its way out. This system is closed to prevent fumes in interior. Exhaust pipe outlet on transom: must have swans neck on exhaust pipe to present sea ingress.

5. Have found diesel best fuel - loads of it so don't have to worry about tankage. And cheap to run.

6. Electrical drain: recall about 4 amp on startup, but quickly drops back as system gets going. Glowplug is the drain rather than the blower.

Hope that helps.

PWG

 

[bobgoode]

Webo 2K will draw 4 A on start up for a few minutes, then drops to 2A at full chat dropping down to less than 1A once up to temperature.

Woke up Sat morning in Chicester to find ice on decks and marina iced over. Nice and warm inside though having left the 2K webo on all night set to 15 deg. C ( It did run all night at full chat! and I did wonder why?) Best £1`350 spent next to the 2.5K on new sails.)

 

[VicMallows]

As has been said .... all depends on nature of your usage. I wouldn't have slept a wink at that temperature, even if I couldn't hear the heater. /forums/images/graemlins/smile.gif

Vic

 

[FullCircle]

I have the 3500 on my 35 foot.
This works well, except to the forecabin, virtually no air flow at all., however, I do have a separate wet locker outlet to make the oilies warm dry and toasty.
2 things to improve the installation
1. Install the programmable timer, about 30 ish quid off the ebay seller.
2. I bought aluminium bubble wrap insulation and wrapped it around all pipes. That really got the thing working well at point of delivery, also quietens the air rush noise.