Dennis, et al;
Having installed both the Day/Night model N20703 (last fall) and N20803 (just last week) on Imzadi, I have a couple of observations. I’ve replaced my dorade boxes with these fans. The Day/Night Plus N20703 was a pretty simple installation. The main difficulty was enlarging the 3” diameter hole in the deck to fit the larger diameter of the fan. The mounting plate screws to the deck, and the fan itself screws to the mounting plate. So it is a pretty robust installation. There is a trim ring included for installation inside the headliner, but I just enlarged the hole in the white Lexan panels that covered where my dorades came through the ceiling. (BTW, you refer to the Day/Night Plus as the “new” Nicro. They’ve actually been available for a couple of years snow.) The new N20803 fan is larger in diameter overall, stands higher off the deck, and needs a significantly larger hole through the deck. Installation was, consequentially, much more difficult. Installation is by a trim ring that the fan screws into with an O-ring seal between the upper trim ring and the fan (there are two neoprene seals between the fan and the deck), and a lower trim ring that screws onto the output of the fan and is supposed to snug up to the headliner. The minimum spacing of the two rings is 3”, and the deck/headliner of my 38 above the head is only 2” thick, so I had to modify both trim rings to get them to screw into place. The light on the N20803 is a nice feature, and the access to the battery is easier if it needs replacing. And you can switch from intake to exhaust by flipping a small switch on the light housing rather than changing the fan blades. The assembly seems pretty robust. I suspect that you are correct about sheets hanging up on the fan, but my fans are between the “islands” on the cabin top for mounting winches and cleats, so that is probably not a real problem for me… certainly they are a lot less likely to capture sheets than the old dorade boxes and cowl vents. Unfortunately, the housing that holds the lights and switches seem to have cut down on the amount of air being moved. My two fans are about 3 feet apart, and the Day/Night Plus N20703 is moving noticeably more air. Also unfortunately, while the Day/Night Plus N20703 and 4 are in the on-line Marineco listing of vent fans, they are no longer in the Marineco catalog. And West Marine told me they are being replaced by the N20803 and 4. In hindsight, I wish I had done a little more research and bought a second Day/Night Plus fan from Amazon. Rick Brass Washington, NC From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Dennis C. via CnC-List Sent: Sunday, April 8, 2018 1:21 PM To: CnClist <CnC-List@cnc-list.com> Cc: Dennis C. <capt...@gmail.com> Subject: Stus-List Solar day/night fans - things you need to know Be advised that Marinco now makes a day/night fan as an alternative to the Nicro. https://www.amazon.com/nicro-Stainless-Steel-Night-Plus/dp/B01G1YYDOC http://www.marinco.com/en/n20803s A few things to know about each. Nicro - the old style Nicros were fairly low. If the fan was mounted forward, sheets would generally pass easily over the fan. The new Nicros are higher and have a vertical portion to the side. Sheets will hang up on the vertical portion. The old Nicros were simply inserted into the deck fitting. They could be secured with a trim ring from below. The new fans are screwed to the deck fitting from above. The new deck fitting is slightly different in size from the old fitting so you may have to modify the hole. Marinco - Very vertical on the sides. I suspect sheets will hang up on this fan. It has a nifty night light. It also seems to protrude more into the cabin/head than the Nicro. Before you buy, be sure to look hard at the fitment for this vent. It could be a head banger. There are several other solar vents. Pactrade, Solatron, etc. Do the research. Dennis C. Touche' 35-1 #83 Mandeville, LA
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