Heater exhaust outlet

[vic008]

Easiest place to install heater is under the bridgedeck above the motor, and have a short exhaust pipe exiting in the front face of the cockpit well. But would the fumes tend to come forrd into the cabin? Keep the washboard in to prevent? Thank you.

 

[matt1]

Far more qualified people will, I’m sure, tell you it’s not a good idea because of the fumes (I’ve no idea but I wouldn’t like being that close to them) but another practical consideration is noise. It’s surprising how much the onboard noise is reduced when the exhaust is either transom or hull mounted. Mounting the exhaust in the cockpit well would be pretty loud, not only in the cockpit but likely down below too. If you are mounting the heater above the engine where is the fresh air coming from?

 

[geem]

I really wouldnt fit the heater exhaust there. If the fumes dont kill you the noise will be irritating.

 

[Deleted member 36384]

I would not fit on the “front face of the cockpit well” because the risk of fumes in the saloon. I assume the companionway hatch is directly above the front face. There would be very little opportunity to dilute the noxious gases with fresh air at such a distance.

Putting the washboards in would be a very poor control against the risk, far better to rout the exhaust to the transom or quarter.

In the UK there have been deaths as a result of fumes in cabins from exhaust systems. The gasses have drifted back from exhaust inlets much further away in at least one case.

There may very well be regulations in your country that stipulate distances from doors and windows for exhaust systems.

 

[[70521]]

Easiest place to install heater is under the bridgedeck above the motor, and have a short exhaust pipe exiting in the front face of the cockpit well. But would the fumes tend to come forrd into the cabin? Keep the washboard in to prevent? Thank you.

Yo need to extend that exhaust pipe to the transom. Otherwise you could kill everybody onboard.

 

[harvey38]

Vent it directly overboard towards the rear of the vessel, well away from any openings, and ensure you have a working carbon monoxide detector.

Easiest is not necessarily the best, or safest!

 

[Graham_Wright]

Routing an exhaust can be a challenge.
(One of) mine, exhausts upward through the steering pedestal! I am waiting for someone to shout "Fire!".
I could route is sideways but worry about the effect on neighbours.

 

[vic008]

Well how about put unit on bulkhead by mast, exhaust out cabin coming side, and the 10L diesel tank under it. But would the diesel smell, being in the cabin?

 

[geem]

Yo need to extend that exhaust pipe to the transom. Otherwise you could kill everybody onboard.

Ours discharges on the outside of the cockpit comming. The heater is installed in the engine room

 

[TernVI]

The exhaust is also very hot.
The marine heater intalls are intended to keep the exhaust gas above 100deg C to avoid the steam content condensing. So it's something with a great ability to scald people, melt fenders and dinghies etc etc
Hence the transom is favoured to avoid problems with adjacent boats.

 

[pvb]

The exhaust is also very hot.
The marine heater intalls are intended to keep the exhaust gas above 100deg C to avoid the steam content condensing. So it's something with a great ability to scald people, melt fenders and dinghies etc etc
Hence the transom is favoured to avoid problems with adjacent boats.

A neat way of solving the problem is to lag the exhaust with fibreglass sleeving, then cover the whole lot with a length of 50mm or 60mm air ducting. Ensures the exhaust stays hot enough to stop condensation, and prevents heat damage to nearby items.