Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 15-03-2008, 09:04   #1
Registered User

Join Date: Mar 2008
Location: Charleston, SC
Boat: Whitby 42
Posts: 43
Air Conditioning?

Hi my Wife and are purchasing a Whitby 42 and moving aboard. Any suggestions for A/C? As of now I would like to install 16000 BTU under Settee Thanks, Josh
__________________

__________________
42AFJ is offline   Reply With Quote
Old 15-03-2008, 09:32   #2
Registered User

Join Date: Nov 2007
Location: Miami Shores
Boat: Endeavour E40
Posts: 261
We have a 16000BTU in the main salon with one vent and another vent cooling the V-berth..........
and we have a 9000BTU in the aft cabin..... so between these two we can REALLY cool-down our 40' ENDEAVOUR (center-cockpit).............
I would suggest two units if possible, depending on where you're cruising.......
obviously we need both in South Florida.

In Charleston you can get away with one 16000BTU, probably............
I started the 1st grade there 55 years ago, so I "CRS" about how warm it was..
__________________

__________________
[SIGPIC][/SIGPIC]____________________________________________
S/V High Cotton
"Had I known I would live this long, I would have taken better care of myself !!!
AUTHOR: My dear ole MOM
High Cotton is offline   Reply With Quote
Old 15-03-2008, 09:40   #3
Marine Service Provider
 
AnchorageGuy's Avatar

Join Date: Mar 2003
Location: Wherever the boat is!
Boat: Marine Trader 34DC
Posts: 4,618
Josh, With the Whitby 42 two units are really going to be needed to cool the boat down. You have a choice depending on space allowance of two separate units which can run with one cooling pump, or a spilt unit which will need to have copper tubing run to connect them together.
__________________
Chesapeake Bay, ICW Hampton Roads To Key West, The Gulf Coast, The Bahamas

The Trawler Beach House
Voyages Of Sea Trek
AnchorageGuy is offline   Reply With Quote
Old 15-03-2008, 09:46   #4
Registered User

Join Date: Mar 2008
Location: Charleston, SC
Boat: Whitby 42
Posts: 43
Thanks, that will probably be what we do. Is there any brand preference. If we do two I would like to think that a 12000 unit in the settee and a 5000 in the aft stateroom should cool it down, but then again this is new to us. Charleston does get quite toasty in the summer, add humidity and some days are near unbearable.
__________________
42AFJ is offline   Reply With Quote
Old 15-03-2008, 09:47   #5
Registered User

Join Date: Mar 2008
Location: Charleston, SC
Boat: Whitby 42
Posts: 43
I have been told the central unit is quite more expensive than two units?
__________________
42AFJ is offline   Reply With Quote
Old 15-03-2008, 09:52   #6
Marine Service Provider
 
AnchorageGuy's Avatar

Join Date: Mar 2003
Location: Wherever the boat is!
Boat: Marine Trader 34DC
Posts: 4,618
Josh, The new Cruisair turbo units are pretty nice. Much smaller than the old style and quite a bit quieter. The plastic trays are pretty nice too since they won't start to rust. The other up side is plenty of service available should something go wrong. As a service tech for a new boat dealer we have seen new boats come in with Marvair and had problems plus the units seem to be pretty noisy. Location and correct air exchange is very important to get proper cooling.
__________________
Chesapeake Bay, ICW Hampton Roads To Key West, The Gulf Coast, The Bahamas

The Trawler Beach House
Voyages Of Sea Trek
AnchorageGuy is offline   Reply With Quote
Old 15-03-2008, 11:22   #7
Moderator Emeritus
 
Pblais's Avatar

Join Date: Mar 2003
Location: Hayes, VA
Boat: Gozzard 36
Posts: 8,700
Images: 15
Send a message via Skype™ to Pblais
We use a 16,000 BYU Cruisair. Splitting it two if cheaper sounds like a good idea since you may not always nee it. DO check the power requirements as we can operate the whole boat on a single 30 amp connection. Using twin 30's or a 50 amp might mean some serious other changes to make the power work out for adding the unit(s).

The air handler is forward for us but it pushes air to the stern pretty well. Make sure they use a decent circulating pump (March not Cal) and also be sure the access to the sea strainer is easy for you to get to. You often need to remove an air lock and a short raw water run just makes that part easier. The option for reverse cycle heats faster than it cools and maybe something you do want. In 50 F water it does a respectable job should you anticipate travels where the water or climate is cooler. Space heaters are not safe or as nice as forced air.
__________________
Paul Blais
s/v Bright Eyes Gozzard 36
37 15.7 N 76 28.9 W
Pblais is offline   Reply With Quote
Old 15-03-2008, 17:26   #8
Registered User

Join Date: Nov 2007
Location: SW FL
Boat: Gulfstar 44 Motor Cruiser
Posts: 93
Frankly....I am having the Cruis-airs pulled out of my boat and am replacing them with Mermaid units. The fans on the cruis-airs never shut off, are loud...and they weren't doing a good job. The Mermaid units are great....I installed one on my sailboat.... it was easier than one might expect. Home - Mermaid Manufacturing - Home of Mermaid Marine Air Conditioning I would suggest you look into Mermaid units before you do anything. Yes, its a personal opinion....but it seems I know a number of people who share the same opinion. Also, Mermaid Marine Air units come as cooling only and/or reverse cycle heat. 5 year warranty. An added benefit is they are located in FL....not too far from where I live.
__________________
Forrest Gump was a true philosopher...
Just a Tinch is offline   Reply With Quote
Old 15-03-2008, 18:40   #9
Senior Cruiser

Cruisers Forum Supporter

Join Date: Jul 2006
Location: Chesapeake Region and Maine
Boat: 42' Bob Perry sloop
Posts: 4,038
Images: 4
Josh,

For a Whitby 42, you're gonna need more than 17-18K BTU, especially in southern climes.

On my 42' sloop I have a 16,500 BTU unit and a second 12,000 BTU unit; together, they can handle even the hottest days of summer. Most of the time, just one of them does a fine job.

Re: brands, I chose the one used by both the U.S. Coast Guard and the Canadian Coast Guard: the Flagship Marine. They are very well built, come in complete kits with quality parts -- no mickey mouse sh__ -- and have the option of heating via a large electric coil. This is what I chose and have been very happy. This means that you don't need to fool with the reverse-cycle option for heating (so you don't need to run a separate pump and pull seawater in on cold days). It's clean, safe, and very effective.

You can view the options here: Marine Air Conditioning Systems - water, air and keel cooled.

Bill
__________________
btrayfors is offline   Reply With Quote
Old 15-03-2008, 23:47   #10
Registered User
 
Latitude9.5's Avatar

Join Date: Jun 2006
Boat: CAL 3-46
Posts: 441
Send a message via AIM to Latitude9.5
We have an 18.5 from flagship marine (local shop), i have it sitting in the aft cabin, then i ran the ducts into the galley and main salon, it keeps the salon and galley comfortable and the aft cabin perfect.

I had originally planned on setting it up with two zones, forward zone, unit under the v-berth ducts to salon, aft zone under the bed ran into the galley and aft cabin. As it sits right now we keep the boat pretty cool with the one unit and i don't plan on adding another 30 amp panel and plug to accomodate another a/c unit. (which would be the only way to run them at the same time). But then we've suffered through the summers on the hook without a/c so anything is nice
__________________
Latitude9.5 is offline   Reply With Quote
Old 16-03-2008, 04:39   #11
Registered User

Join Date: Mar 2008
Location: Charleston, SC
Boat: Whitby 42
Posts: 43
Thanks I have checked out the Flagship seems like a very good product. Anyone have any opinions on Webasto?
__________________
42AFJ is offline   Reply With Quote
Old 07-11-2008, 08:02   #12
Registered User

Join Date: Jul 2008
Location: Hawthorne, Fl.
Boat: Whitby 42 - Rebecca
Posts: 10
Air Conditioning on Whitby 42

Josh,

I purchased a Whitby 42 this summer. It did not have A/C nor a generator. Being in Florida and wanting to use the boat year round they were necesscities. I had the Cruiseair Turbo units installed along with a Westerbeke 5.5KW generator. Both are great. We have an 18,000 BTU in the main salon with a vent to the V-berth. We also have an 8,000 BTU unit in the rear cabin. The units provide heat and a/c and will run off of 1 30amp shore power or the generator. This really made the boat a "livaboard" although that is not our intention. The Cruisair units are quiet and really keep the humidity down. Can't say enough good about them.
__________________
tomrobalo1 is offline   Reply With Quote
Old 10-11-2008, 21:28   #13
Registered User

Join Date: Jun 2008
Location: Corpus Christi Texas
Boat: boatless atm
Posts: 723
Send a message via MSN to bobfnbw
I have a endeavour 40 with a single flagship marine 16500 btu unit. It does a good job on warm days but is not adequate for summer days here in Texas.
I plan to add another unit foreward.
The flagship system is 8 years old and still working well. Its quiet, but not as quiet as I would like. The new units are better I hear.
__________________
bobfnbw is offline   Reply With Quote
Old 11-11-2008, 02:58   #14
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,586
Images: 240
A quick "rule of thumb" for sizing marine air-conditioning (for use in sub-tropics) is between 14 (below decks) to 17 (above decks, glazed) BTU/H for each cubic foot of conditioned volume.
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Old 11-11-2008, 06:25   #15
sitting on the dock of the bay

Join Date: Mar 2006
Posts: 1,513
Images: 6
Send a message via Yahoo to gonesail
you might check out the climma brand. looks to be well made and very compact.
__________________

__________________
sometimes the things that may or may not be true are the things a man needs to believe in the most.
gonesail is offline   Reply With Quote
Reply

Tags
air conditioning

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Marine Air Conditioning Problems jlogan Plumbing Systems and Fixtures 12 24-07-2014 13:53
Marine Air-Conditioning GordMay Construction, Maintenance & Refit 4 18-07-2013 12:10
chilled water air conditioning beau Plumbing Systems and Fixtures 49 10-12-2007 19:57
Air Conditioning Problem avazquez Construction, Maintenance & Refit 6 29-05-2007 14:02
Air Conditioning exposure General Sailing Forum 13 18-07-2004 18:50



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 10:20.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.