Solar vent
Put one on my boat 3 yrs ago & very pleased. It has run continuously since then and no problems so far, though it eventually will wear out and need replacement. It vents the cabin 24/7 and is very quiet. Mine is located in the cabin roof,ahead of the mast (in the head) and exhausts air from that point, with fresh air coming from vents at the aft end of the boat, so there is continuous air circulation thru the aft 3/4 of the boat. Ideally I guess there should be another vent hood to allow fresh air to enter near the bow too, but I haven't done that yet.Good product & worth installing, especially in TX where your ambient temps are much higher.