Air Conditioner Location for an O'Day 34/35

Jan 27, 2008
3,086
ODay 35 Beaufort, NC
in the mid atlantic area the water can get up to 85 degrees, so you have heat coming from above and below. In New England with the cold water you have a much lower cooling requirement. Since the hull is solid FRP the heat from the water conducts through the hull and then radiates and convects into the interior. You should plan on the higher BTU's IMHO
 
Aug 9, 2023
5
O'Day O'Day 34 Chesapeake Bay
Excellent point which I really didn't contemplate. Anyone thinking a 14000 BTU would be too big? Leaning toward a MarineAire unit and they come in 11k or 14k. Plan to put in the forward hanging locker and split the output to the v-birth and main saloon.
 
Aug 9, 2023
5
O'Day O'Day 34 Chesapeake Bay
Thanks all for responses. Concerned with grasses in the Bay. 1. Any suggested water filter/strainers? 2. Any recommendations other than Annapolis CruiseAir to help with installation?
 
May 30, 2006
354
Oday 34 Chesapeake Bay
I used a Groco raw water strainer, grass not so much a problem, it's the frickin' stinging nettles that get sucked up that stops the water flow. The dreaded E4 error in the middle of a hot summer's night.
 
Aug 8, 2010
41
Oday 34' sloop Deltaville VA
Hey folks - just purchased a 1984 O'Day 34. Bringing her down to the Chesapeake next spring. Installing AC. Trying to determine the right/appropriate size (BTUs). Folks up in New England indicated as low as 8000 BTUs but I saw on this forum twice that. Obviously, oversizing the unit can create many issues. The Dometic units will fit below the settee but they are more expensive. Any input on the appropriate rating for this size boat in the Chesapeake?
I assume you've installed a unit by now. If not use a 16K. I also have a 34' O'Day. For twenty years it has been at Stingray Point Marina. My unit is under the settee.