I have the option to fit a 'dedicated' fresh air feed to the eberspacher. Does the forum advise that I do so and will this add to the freshness of the blown warm air?
weel, when you hae visitors on board of a certain bent(an ahm sure ye ken fine wha ah mean) it wid certainly be advantachus no tae hae tae suffur yon maladorous odours bein wafted aroon yer nostrils fur hours oan end. Also it may assist tae remove the stink o' a distillery frae yer wee motorsailer.
It also depends on if you have the older type thermostat type, the cyclindrical ones rely on the air flow on the intake to sense temprature, if you have the square room type then it makes no odds where you take the inlet from.
youse make a verra valid point, ma shun ... entry tae ra patio is best done airse first and eets verra difficult tae keep ra buttocks clenched during sich a complicated manoover so ah wid be spending ma money oan a proper pair o' patio doors ... all my humble opeenion of course
Its a new unit.
The air in the wheelhouse is always quite fresh - apart from when Para has been on the ale - so I thought if I fitted an air intake in there somewhere and piped it down to the eberspacher?
Just like a car heater you can recirculate the air or heat fresh air from outside the boat.
If you recirculate the air you will get warmer more quickly. Also on damp days you will get less humidity inside the boat.
If you draw fresh air in remember you need to let the air out at the other end of the boat by cracking a hatch open otherwise you will restrict the airflow by trying to pressurise the boat.
I solved this problem on PEREGRINE by drawing the air from a cabin on the port quarter. I can close the door on this cabin and open a hatch to draw air in from outside. Open the door and close the hatch I get re-circulation. Depends on the layout of the boat and how big it is.
Two points to consider
One is the ever present menace of carbon monoxide poisining. If you did get a slight leak from exhaust into the air input, then by recirculating the air you will concentrate the CO this until it reaches dangerous levels. If you always draw in fresh air you will reduce that risk.
Second is that the air intake can also be noisy, years ago I put an air inlet for the heater in the cockpit as I had a hole to fill where I had taken out a bilge pump - it turned out to be very noisy and I soon moved it.
On our current boat the inlet is in the cockpit locker, if the heater is on for a long time I crack open the lid. I find the air circulation helps to keep the locker dry
Thanks for that - it sounds ok in the wheelhouse then because if the engine is running the eberspacher probably cannot be heard and if we are parked up with it running then presumably we'd be in the saloon so again the noise should be reduced.
Thanks for the advice
I fitted dedicated freshair intake. The pipe goes to an open cubby hole locker in the cockpit.....you need to be carefull no water can enter the intake pipe though. I drilled a small hole in the lowest section of the intake pipe to let any water that may enter the system to drain out. This hole only 4mm so should not pick up dirty air from the closed cockpit locker through wich it runs.Its definately a case of clean air in and clean air out.If you suck dirty smelly air from a locker into the system it is bound to come out the other end in a smelly fashion too.
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Just like a car heater you can recirculate the air or heat fresh air from outside the boat.
If you recirculate the air you will get warmer more quickly. Also on damp days you will get less humidity inside the boat.
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Isn't that the wrong way around? If you recirculate it will remain damp, if I hit the recirculate button on the car the windscreen will fog up.
I stand to be corrected, I am asking genuinely and not trying to contradict what you said.