Azimut 39 or 42 diesel air heater Eberspacher installation help.

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SICOBRA2

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Would any forum members with one of the above have a Eberspacher style heater installed in their Azimut 39/42 and if so could you give me some ideas as to where the main heater has been fitted and where the warm air ducting is installed, through which bulkheads and under which floors and where the outlets are? I have just acquired one to work as a better form of heating instead of the reverse cycle aircon so we can cruise without the genny running.Any photos would be very much appreciated showing trunking routing so I have a general understanding before finding out the 'hard' way!!
Thanks in advance to Azi owners, cheers Simon.:encouragement::encouragement:
 
I have a 39. The heater is installed in the lazerette, after of the port battery box, with the exhaust through the port sternside. The ducting goes through the engine room and feeds a vent behind the fridge for the saloon. The ducting then goes forward in the bilge to starboard for the second cabin, then forward to a vent in the base of the master cabin bed. It heats the saloon in about 20 mins. The cabins take longer as the length of the ducting takes a while to heat, reducing the heat to air. I also have vents to the windscreen to demist. Have never needed to use this feature. I can take a pic of the heater install next time I am on board.
 
That is really great info so thanks so much. Any photos you could supply me with would be really appreciated, not only the heater location but anything that shows the routing too and behind the fridge and especially where it goes from there down into the bilge. Is it in the under-steps galley cupboard? I probably won't worry about screen vents as I am not sure how I could get the ducting up there without major deconstruction and if you find you don't need them then it doesn't sound worth the effort! Thanks again for the help which will hopefully make the install so much easier. Cheers.
 
I am sure you know, but putting insulation around the ducting makes a huge difference in getting the best heat out of the vents.
 
Thanks for the advice, I had planned to do the insulation as part of the fit, not cheap but worth it from what everyone is saying. Is the Eberspacher stuff the best or is there a really good alternative at a better price?
 
SICOBRA2 said:
Thanks for the advice, I had planned to do the insulation as part of the fit, not cheap but worth it from what everyone is saying. Is the Eberspacher stuff the best or is there a really good alternative at a better price?
Click to expand...

For the insulation you don’t need to go with "super expensive" Espar insulation. In my system I used regular tube insulators from the DIY store. The temp from the air outlet has increased by 15% and plus the heater works less. The maximum temp that the air hoses reach are 110 degrees Celcius (right at the exit of the heater). Within one meter it immediately falls to below hundred on the air hose. While choosing the insulation tubes make sure that they withstand these temps (usually they stand upto 105C and that is OK). In my system Espar insulation was costing around EUR 1400. My solution costed EUR 50 (yes, fifty in writing:) ). I have been using it for a while by now and it works perfect.
 
Just wanted to pass on my thanks to the forum members who have helped with ideas, photos and descriptions of heater installations which has made my install so much easier, all up and running and nice and warm onboard now, so thanks again one and all, cheers.
 
Good work, I'm too chicken to install myself, but have just given the go ahead to get a twin Airtop set up installed on Stella... it'll be nice not to have warmth even when the sea temp dips too low for my reverse cycle system to cope.
 
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