Vents are important

Yesterday was a beautiful day (at least for early February) but today it is back to winter temperatures. Sorry, I just needed to vent. And speaking of vents (notice the slick lead-in), yesterday Pat was installing another Nicro Fico solar vent which we have installed on a number of boats this past season.  On this boat we are installing one in the aft cabin shower and one forward in the hatch to provide a circulating air flow through the vent. One will exhaust in and the other out. This one gets mounted in the cabin top while the one forward will mount right through the lexan hatch. As you may guess, going through the cabin top is more time intensive. Below are the steps.
Laying out for the hole
Using a hole saw to drill the hole
Perfect clean hole
Filler Tube (PVC pipe coupling)
Filler Tube installed
Solar Vent sitting on tube
From the inside
We couldn’t quite finish the job yesterday because we were out of King Starboard. We use this under the vent to raise the hole above the deck to avoid leaking. This may be a questionable step, but it makes us feel we are doing a safer install that way. The 4″ PVC coupling just happens to be the perfect size to dress out the hole. Shameless Plug Nicro N28810 Air Vent 500, frosted polycarbonate An inexpensive version of the vents we use. AIR VENT 2000 is a low cost, high volume passive exhaust vent. Only 7″ in diameter x 1-3/4″ High, yet will move over 1000 cubic feet of air per hour in a 15 knot breeze. Includes a translucent frosted polycarbonate center damper that rotates for full closure and allows light to pass below. Buy it at Amazon.com