Reply
 
Thread Tools Display Modes
 
Old 08-30-2017, 12:24 PM   #1
Veteran Member
 
Dave_E's Avatar
 
City: La Conner, WA
Country: USA
Join Date: Sep 2014
Posts: 98
Air conditioning anyone?

Hi All,

To the owners of the venerable Taiwanese Trawlers, who has air conditioning on their boat? What kind and where did you install it? Portables?

Dave
__________________
Advertisement

__________________
GOD, Family, career
Dave_E is offline   Reply With Quote
Old 08-30-2017, 03:18 PM   #2
Guru
 
djmarchand's Avatar
 
City: East Greenwich, RI
Country: USA
Vessel Name: Bella
Vessel Model: Mainship Pilot 34
Join Date: Aug 2012
Posts: 2,875
Portable A/Cs are inefficient to the point of being almost worthless. You are using inside air to cool the condenser which you then dump outside.

A permanently installed, raw water cooled A/C like Cruiseair, Mermaid, Webasto is the best way. Secondly would be a mini split system such as those made for homes. But the condensing unit won't hold up well in salt air. Finally, an RV roof type unit will work well until it rusts out like the mini split condenser.

A good marine A/C system will last for twenty or more years. You will be replacing the mini split or RV unit every five years or so. You can buy a 16,000 btu marine A/C unit and basic installation kit for about $2,500. Professional installation will add another $2K or so.

David
__________________

djmarchand is offline   Reply With Quote
Old 08-30-2017, 04:10 PM   #3
Senior Member
 
Capecodder's Avatar
 
City: Cape Cod, MA or Fort Myers, FL
Country: USA
Vessel Name: Osprey
Vessel Model: Her Shine. Newburyport
Join Date: Dec 2013
Posts: 266
I have built in 16k located in the V berth closet and a 12k in the aft stateroom closet both raw water cooled.... in Fort Myers Florida with sea water temperatures over 90 not very efficient. A window shaker from Walmart casually installed works better when at the dock. When I was in New England the professionally installed system would produce heat when the water temperature was over 45 As djmarchand reports the portable AC on wheels are of little use.... I did talk to a HouseBoat owner who reports good results with a duel tube ---separated air intake and exhaust... is because he purchased it and cut holes to install....?
Capecodder is offline   Reply With Quote
Old 09-29-2017, 07:18 PM   #4
Member
 
City: Baltimore
Country: US
Join Date: Sep 2017
Posts: 14
My 43' Tradewinds has 3 raw water Cruiseair units. These are fed from a common raw water pump in the engine room. I have been an HVAC tech for 20 years, so I plan to make a few changes to improve reliability. Some suggestions I have: Install isolation valves were each hose branches off from the pump. That way, if one unit leaks or needs to be worked on, the others can still be used. Some owners have adapted their system to be able to use dock water instead of raw water by using a Y valve. That allows the system to be run if the raw water pump were to fail. Your marina may not want you using so much water especially because the water will literally be "on" all the time. Also, city water can and will sink your boat, so it is very important to use quality fittings and hose. Ensure your heat exchangers stay clean.

Daniel
dvarholy is offline   Reply With Quote
Old 09-29-2017, 11:04 PM   #5
Member
 
City: Baltimore
Country: US
Join Date: Sep 2017
Posts: 14
The mini split manufacturers will not warranty the condenser if installed even near salt water. Also consider that all but the smallest mini split units need 240 volt service. I am seeing more of them, particularly on houseboats.
dvarholy is offline   Reply With Quote
Old 09-30-2017, 02:06 AM   #6
Guru
 
City: Sydney
Country: Australia
Join Date: Jul 2015
Posts: 1,348
Quote:
Originally Posted by dvarholy View Post
The mini split manufacturers will not warranty the condenser if installed even near salt water. Also consider that all but the smallest mini split units need 240 volt service. I am seeing more of them, particularly on houseboats.


Things must be different in Australia I have seen split systems on house boats 11 years old and still working well and split systems on homes on the beach front 10 years old and still working .
There is no where in the warranty (I just looked ) that stipulates how far from the water the AC must be before warranty is denied .As I said things must be different here
gaston is online now   Reply With Quote
Old 10-13-2017, 04:52 PM   #7
Member
 
marcail's Avatar
 
City: Brunswick, georgia
Country: USA
Vessel Name: M/V Marcail
Vessel Model: Marine Trading 44
Join Date: Aug 2015
Posts: 15
Send a message via AIM to marcail
Have a 44 MT. I have two crusairs both mounted in aft section. One blows into aft cabin and one into main salon. I use a small fan to get air into fore cabin. Works fine for years with servicing. Did replace a compressor a couple of years ago. Rob
marcail is offline   Reply With Quote
Old 10-15-2017, 10:26 AM   #8
Senior Member
 
bilge53's Avatar
 
City: Oriental, NC
Country: USA
Vessel Name: M/V Major Award
Vessel Model: Senator 35 w/single Lehman
Join Date: Oct 2007
Posts: 420
16K in aft and vented to main salon. 10K under Vee vented to Vee, head and galley. Works well.
__________________
It is not who is right...it is who is left.
bilge53 is offline   Reply With Quote
Old 10-15-2017, 10:58 AM   #9
Guru
 
City: Au Gres, MI
Country: US
Vessel Name: Never Say Never
Vessel Model: President 41 DC
Join Date: Jul 2015
Posts: 796
We have 2 Cruiseair 16K btu units in our 41 President. They were there when we bought the boat.
Comodave is offline   Reply With Quote
Old 11-21-2017, 03:06 PM   #10
TJM
Veteran Member
 
City: Essex, Ct.
Country: USA
Vessel Name: Harmony
Vessel Model: 1982 41' President
Join Date: May 2013
Posts: 86
Comodave, where is your unit located for your forward cabin ?
Both of my compressor units are in the engine room but the blower for the forward cabin is on the port side above the hanging locker.

Both of my units have died and need replacement. I am favoring the one piece - all inclusive unit but not sure where to place it.
__________________
Tom
"Harmony"
1982 41' President
TJM is offline   Reply With Quote
Old 11-21-2017, 03:29 PM   #11
Guru
 
Simi 60's Avatar
 
City: Queensland
Country: Australia
Vessel Model: Milkraft 60 converted trawler
Join Date: Jul 2016
Posts: 770
Living on the hook for two years in a land where our summers hit 40c/104f and not once have we wanted a/c.

Good ventilation and large overhangs are the answer.
Simi 60 is online now   Reply With Quote
Old 11-21-2017, 04:19 PM   #12
Guru
 
City: Au Gres, MI
Country: US
Vessel Name: Never Say Never
Vessel Model: President 41 DC
Join Date: Jul 2015
Posts: 796
The forward A/C is under the aft seat in the dinette. We have a large horseshoe dinette on the port side. That unit is a self-contained unit. The unit in the aft cabin is a split system. I wish that both were the self contained type due to overcrowding in the engine room.
Comodave is offline   Reply With Quote
Old 11-21-2017, 05:05 PM   #13
Senior Member
 
catalinajack's Avatar
 
City: Edgewater, MD
Country: USA
Vessel Name: Catalina Jack
Vessel Model: Defever 44
Join Date: Nov 2011
Posts: 354
Quote:
Originally Posted by Simi 60 View Post
Living on the hook for two years in a land where our summers hit 40c/104f and not once have we wanted a/c.

Good ventilation and large overhangs are the answer.
In your opinion. Respectfully, how does your opnion stated here help advance the help the OP is seeking?
catalinajack is offline   Reply With Quote
Old 11-21-2017, 05:13 PM   #14
Guru
 
City: Hampton, va
Country: USA
Vessel Name: Didi Mau
Vessel Model: 2003 Ocean Alexander 456
Join Date: Jul 2015
Posts: 598
Not so much the heat as it is the humidity

Quote:
Originally Posted by Simi 60 View Post
Living on the hook for two years in a land where our summers hit 40c/104f and not once have we wanted a/c.

Good ventilation and large overhangs are the answer.
Gordon J is offline   Reply With Quote
Old 11-21-2017, 05:15 PM   #15
Guru
 
City: Hampton, va
Country: USA
Vessel Name: Didi Mau
Vessel Model: 2003 Ocean Alexander 456
Join Date: Jul 2015
Posts: 598
I think what he was trying to say

Quote:
Originally Posted by catalinajack View Post
In your opinion. Respectfully, how does your opnion stated here help advance the help the OP is seeking?
Is sell your boat and buy one exactly like his
Gordon J is offline   Reply With Quote
Old 11-21-2017, 05:17 PM   #16
Guru
 
Simi 60's Avatar
 
City: Queensland
Country: Australia
Vessel Model: Milkraft 60 converted trawler
Join Date: Jul 2016
Posts: 770
Quote:
Originally Posted by catalinajack View Post
In your opinion.
Not opinion, it is fact.
Evidence of this fact is 100f summers and no a/c due to good ventilation and large overhangs.
Further support of this fact is those with poor ventilation and small or no overhangs needing A/c.

How it helps the op is perhaps they need to address ventilation and shading first, it will certainly help even if AC is decided on at a later stage.
Simi 60 is online now   Reply With Quote
Old 11-21-2017, 05:20 PM   #17
Senior Member
 
catalinajack's Avatar
 
City: Edgewater, MD
Country: USA
Vessel Name: Catalina Jack
Vessel Model: Defever 44
Join Date: Nov 2011
Posts: 354
Quote:
Originally Posted by Simi 60 View Post
Not opinion, it is fact.
Evidence of this fact is 100f summers and no a/c due to good ventilation and large overhangs.
Further support of this fact is those with poor ventilation and small or no overhangs needing A/c.
No, it is not a fact. It is your opinion that good ventilation IS the answer. For other folks, perhaps most folks, your environment would not be sufficient. Therefore, opinion, not fact.
catalinajack is offline   Reply With Quote
Old 11-21-2017, 05:24 PM   #18
Senior Member
 
catalinajack's Avatar
 
City: Edgewater, MD
Country: USA
Vessel Name: Catalina Jack
Vessel Model: Defever 44
Join Date: Nov 2011
Posts: 354
Quote:
Originally Posted by Simi 60 View Post
Not opinion, it is fact.
Evidence of this fact is 100f summers and no a/c due to good ventilation and large overhangs.
Further support of this fact is those with poor ventilation and small or no overhangs needing A/c.

How it helps the op is perhaps they need to address ventilation and shading first, it will certainly help even if AC is decided on at a later stage.
And if the OP does not have good ventilation and an overhang what is your recommendation? Sell the boat I suppose.
catalinajack is offline   Reply With Quote
Old 11-21-2017, 05:27 PM   #19
Guru
 
Simi 60's Avatar
 
City: Queensland
Country: Australia
Vessel Model: Milkraft 60 converted trawler
Join Date: Jul 2016
Posts: 770
Quote:
Originally Posted by catalinajack View Post
And if the OP does not have good ventilation and an overhang what is your recommendation? Sell the boat I suppose.
Fabric shade and opening windows/hatches, heard of them?
Anything that keeps sun off decks, roof and windows makes a huge difference

On the days where it was 40c/outside here we had 28c and coolish breeze inside.
Simi 60 is online now   Reply With Quote
Old 11-21-2017, 05:31 PM   #20
Senior Member
 
catalinajack's Avatar
 
City: Edgewater, MD
Country: USA
Vessel Name: Catalina Jack
Vessel Model: Defever 44
Join Date: Nov 2011
Posts: 354
Quote:
Originally Posted by Simi 60 View Post
Fabric shade and opening windows, heard of them?

On the days where it was 40c/outside here we had 28c and coolish breeze inside.
Simi 60, give it up. Yes, I have. If you choose no A/C, good for you. Others choose differently. Denigrating their choice is unbecoming. I ask you again, how do your observations help the OP and this forum?
__________________

catalinajack is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





All times are GMT -5. The time now is 01:42 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012