Straight Thru-Hull Exhaust Skin Fitting (PoDhey Thru Hull Exhaust Skin). It is a highly specialized marine component designed specifically to vent high-temperature exhaust gases safely through a boat’s hull or deck.
Product Overview & Function
• Primary Application: This fitting is widely used for installing air diesel parking heaters in boats, yachts, RVs, and trucks.
• Thermal Isolation (Double-Wall Design): Unlike standard drainage thru-hulls, this hardware has an insulated core structure. The central exhaust pipe is decoupled from the outer mounting flange by an air gap or insulation barrier. This crucial mechanism protects your boat's fiberglass, gelcoat, or wood hull from blistering or catching fire due to intense exhaust heat exceeding 300°F+.
• Material Composition: It is constructed from premium 316 marine-grade stainless steel, offering superior resistance to high-temperature scaling and aggressive salt-water corrosion.
Specifications & Mounting Kit
• Common Dimensions: These components are most frequently sized with a 24mm (0.94") or 22mm (0.87") outer diameter tube connection to match standard flexible stainless steel exhaust hoses.
• Mounting Hardware: The unit is installed from the outside and clamped firmly via a three-bolt flange arrangement. It typically ships as a complete kit containing:
• Heat-resistant backing gaskets
• 3 elongated mounting machine screws/bolts
• Matching large retention washers and lock nuts
If you are currently setting up a heating system on your vessel, let me know:
• What is the inner diameter of your exhaust pipe (is it 22mm or 24mm)?
• Where on the hull are you mounting it? If space behind the mounting wall is restricted, you might benefit from an angled (90° or 45°) elbow style skin fitting instead of a straight one.
Haifan Rigging supply a range of marine boat hardwares. They come with a variety of fittings for each end to suit your particular application. Yachts, Sailboats, Ships and Other Fields.
If you wish to ask a question or need further advice, you are welcome to contact us. We'll be happy to help.
We look forward to hearing from you!
