Robg71
Well-Known Member
Spam post above....
Eberspacher central heating question
- Thread starter Bandit
- Start date
A_8
Well-Known Member
We've got a Webasto 5kw heater and if everything is in good order and well installed there is and should not be any smell whatsoever. The combustion is separate from the airflow so if there is any smell you have a problem even though it might just be that the exhaust is too close to the air inlet, worst case you've got a cracked combustion chamber or leaks from the exhaust and air intake close to the unit and it needs fixing.
With a good install as have been described and the heater running in its lower range it should be very quiet, we can hardly hear ours running at its lower setting which is 1,5kw and usually ok when everyone is sleeping and the boat is closed. In some cases we've had minus 10 celsius outside and the heater have run a bit higher but still quiet enough not to disturb.
The trick beyond a good install is also choosing the heater capacity and placement of the temp sensor, the webasto (and I assume the eber) have a set of heater stages and ours is at it lowest 1.5kw which sometimes is a bit too much so the heater cuts in and out with a approximate 4 degree C span which is a bit too much, if I would redo the install I would probably choose a heater with a minimal 750-1000 watts. This is obviously dependant on the boats insulation and when and where you cruise.
The temp sensor placement is also very important, there are many challenges with this. For example you have one sensor but maybe 2-3 cabins and outlets that have closed doors during the night. How do you make sure the sensor reading is relevant for all cabins...? The only way to manage this beyond a heater and sensor for every cabin is by adjusting the airflow to the individual cabins in relation to their heating requirement relative to the area where the temp sensor is located.
The location of the temp sensor needs to be "stable" in terms of being relevant and non-sensitive to point sources of heat or cold.
If you get this right the heater can be set at a temp and you will hardly notice it cutting in or out.
Regarding a water heating system it is very slow to actually produce usable heat and unless you are a liveaboard and keep it on all the time I would not even consider it.
With a good install as have been described and the heater running in its lower range it should be very quiet, we can hardly hear ours running at its lower setting which is 1,5kw and usually ok when everyone is sleeping and the boat is closed. In some cases we've had minus 10 celsius outside and the heater have run a bit higher but still quiet enough not to disturb.
The trick beyond a good install is also choosing the heater capacity and placement of the temp sensor, the webasto (and I assume the eber) have a set of heater stages and ours is at it lowest 1.5kw which sometimes is a bit too much so the heater cuts in and out with a approximate 4 degree C span which is a bit too much, if I would redo the install I would probably choose a heater with a minimal 750-1000 watts. This is obviously dependant on the boats insulation and when and where you cruise.
The temp sensor placement is also very important, there are many challenges with this. For example you have one sensor but maybe 2-3 cabins and outlets that have closed doors during the night. How do you make sure the sensor reading is relevant for all cabins...? The only way to manage this beyond a heater and sensor for every cabin is by adjusting the airflow to the individual cabins in relation to their heating requirement relative to the area where the temp sensor is located.
The location of the temp sensor needs to be "stable" in terms of being relevant and non-sensitive to point sources of heat or cold.
If you get this right the heater can be set at a temp and you will hardly notice it cutting in or out.
Regarding a water heating system it is very slow to actually produce usable heat and unless you are a liveaboard and keep it on all the time I would not even consider it.
Last edited:
KevB
Well-Known Member
Post is only 6 years old....
oldgit
Well-Known Member
Under no circumstances must the fresh air intake be ever located in the engine comp.....
A_8
Well-Known Member
D'oh!
akyaka
Well-Known Member
Hopefully it will start as Eberspachers need running at least once a month .
As you are installing for the first time invest in at least the slightly more upmarket digital control with integral temperature sensor that way the heater is responding to the temperature in the cabin and you can have the air inlet remote from the cabin eg from a locker,which eliminates noise.You cannot do this with the basic control as it has no sensor and depends on the one built into the unit and so only senses cold air and runs continually; wiring in the digital control automatically disengages the return air sensor.
Bandit
Well-Known Member
I'm flattered, someone has dug up a six year old thread of mine.
I had an Eberspacher fitted.
Generally I use oil filled electric heaters, if very cold I fire up the Eberspacher but the control panel is fiddle so generally for an hour at a time.
It's quite noisy but I am a light sleeper.
But glad I fitted it for use at sea and in port.
I had an Eberspacher fitted.
Generally I use oil filled electric heaters, if very cold I fire up the Eberspacher but the control panel is fiddle so generally for an hour at a time.
It's quite noisy but I am a light sleeper.
But glad I fitted it for use at sea and in port.
Piers
Well-Known Member
We have a Webasto system fitted and it's really good. In my opinion, better than Ebersp. If you want to see it, give me a call. We are still in Beaucette waiting for this non-stop wind to die down....