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Post by braders on Apr 6, 2019 7:52:34 GMT
Hi
I have a Jeanneau 44i and we are looking to heat 3 x cabins - 3 x heads - the salon and a cockpit enclosure, we are in the UK on the east coast near Ipswich. What would be your recommendations for the output of a Webasto diesel heating system given we would like a warm boat all year round ? one Evo 55 or two Evo 40
Any other advice - tips or recommendations would be very much appreciated
Many thanks
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Post by iancymru on Apr 6, 2019 12:18:44 GMT
Just a thought what about a diesel stove for saloon and for'd part of the boat and blown air for the aft cabins and cockpit.
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Post by jdl01 on Apr 6, 2019 15:31:25 GMT
Your efficiency of hot air delivery goes way up with shorter runs of ducting, but what is the comparative power draw between the single and double units? Is battery capacity a potential issue for you?
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Post by braders on Apr 7, 2019 7:26:08 GMT
Thanks for the suggestions. I’ll check regarding battery draw - didn’t consider that ! May go for a main system using the 55 with a supplement of the 40 ... battery power is not an issue as we are hooked up to shore power and have an onboard genny
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Post by uli057 on Apr 7, 2019 9:25:56 GMT
Hi.
why two?
and why webasto?
i have diesel heater from poland.
he works very fine, and the price is a half to webasto!
frim china is another heater at market and at youtube, he coast 250€
but for this heater i cant give any information.
regards uli
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Post by ales on Apr 7, 2019 12:02:20 GMT
On my SO 43DS (two cabin, two heads) I have 5.5kW Webasto. It runs perfect. But the forward cabin is not so warm as I would like it to be.
I think it is also important how the pipes are placed (avoid curves etc.).
Amel 55 has two webasto heaters and it is a larger boat (more volume).
I think you can get away with one and maybe you could insulate the pipes.
If you would fit two than one has to be closer to stern and one closer to bow.
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Post by braders on Apr 7, 2019 15:36:24 GMT
Hi Ales
Do you have 2 x 55 Webasto heaters or have I misunderstood
Thanks
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Post by ales on Apr 7, 2019 15:38:57 GMT
HI,
I just have one.
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Post by braders on Apr 7, 2019 16:33:49 GMT
Thanks Ales
Just one more question are your heater ducts of the insulated type ?
Stewart
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Post by ales on Apr 7, 2019 17:02:14 GMT
No they are not.
If there are available isolated ducts- install them.
When I will face the problem of "cold" forward cabin, then my first job will be: insulating ducts.
Otherwise: my webasto runs perfect.
If you are going to install two heaters bear in mind that they do burn some diesel (costs...).
But I think one heater (5,5kW) would do the job. And do not forget to instal air intake for the heater!
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Post by braders on Apr 7, 2019 17:23:00 GMT
Excellent advice - thank you, and definitely confirmed Webasto is going to be my choice
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Post by sleighride on Apr 8, 2019 23:01:35 GMT
I heat three separate cabins pretty well in my DS43, including the forward cabin, with a forced air Webasto. In fact the forward cabin has the best outlet for drying out towels from the morning showers. The idea of two separate heaters does have some merit to me in that on a cruise to Alaska one summer, the heater appeared to stop working and did not send hot air into the cabins. I thought the heater had failed and ordered a new one shipped to Ketchikan, Alaska where I installed it myself and still no heat. It turned out that the Webasto was not the problem, but the main ducting tube had severed at the aft bulkhead just beneath the propane tank which was extremely difficult to access. When I finally discovered the problem, I could not find new ducting that would fit and had it repaired in Washington after returning in cold, wind and rain, and with a very unhappy wife. If I had two separate heaters with separate ducting, the return trip would have been much more tolerable. Problem is where to run the second exhaust vent for a second heater, as it is extremely hot. My Webasto is a great work horse, and burns very little fuel. I run the heater extensively all winter when I am aboard, sometimes in below freezing temperatures. This last winter, I only burned about three gallons of diesel, including running the Yanmar once or twice a month. Good luck and be sure the ducting is run so that you can access it for repairs. My ducting is not insulated, which I think is a good thing since it is obviously warm and heats the areas along the bilge thereby reducing moisture and mold.
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Post by braders on Apr 12, 2019 19:51:54 GMT
The cruise to Alaska sounds awesome- we went there last year and loved it ... thank you for your advice
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Post by ianpowolny on Apr 13, 2019 7:26:18 GMT
Our 3 cabin 2008, 45 DS has two Webasco heating units. Port side is 3500w and the starboard side is 5000w. Starboard side supplies hot air to the forward berth and heads. We had 2 seasons on the West coast of Scotland and this system kept us very warm.
I do have the line diagrams for the installation if that would help.
Ian
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Post by braders on Apr 13, 2019 14:14:29 GMT
Hi Ian
I would really appreciate the installation diagrams you have - thank you
Stewart
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Post by ianpowolny on Apr 13, 2019 21:55:04 GMT
Stewart, Not sure where we stand with copyright these days? PM me your email address and I’ll send you what I have. MalcolmP, can I upload all the line diagrams to the Facebook page and not infringe copyright? Ian |
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Post by MalcolmP on Apr 14, 2019 15:59:49 GMT
Stewart, Not sure where we stand with copyright these days? PM me your email address and I’ll send you what I have. MalcolmP , can I upload all the line diagrams to the Facebook page and not infringe copyright? Ian Ian might depend if it is a Webasco or Jeanneau document. If you email me them I will take a look and upload if I can  |
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