Hon&Guan 3-Inch Diesel Heater Hose Kit — Two 8ft Ducts, Adjustable Y Splitter, Heat-Resistant

Hon&Guan 3-inch diesel heater hose kit supplies flexible, heat-resistant ducting, an adjustable Y splitter, vents and clamps to route warm air from 5KW–8KW parking heaters in trucks, RVs, campers and boats.

This complete accessory set gives you the hoses and fittings needed to extend and direct hot air from common diesel air parking heaters (including many Webasto and Eberspacher-style units). Built from laminated nylon mesh with steel wire reinforcement, the ducting stays pliable for routing through tight spaces while resisting heat and wear. The kit assembles quickly and provides practical control over airflow so you can balance comfort zones or close an outlet entirely.

How does this kit connect to my 5KW–8KW diesel heater?

The kit is designed to attach to standard 3-inch outlets found on most 5KW–8KW air heaters. Installation uses hose clamps for secure, leak-free joints and a 3-foot outlet pipe to bridge short distances between heater and main duct run. Because the hoses stretch and bend, you can route them around obstacles without custom adapters.

• Fits common 3" heater outlets used on many Webasto/Eberspacher-type units
• Two 8 ft ducts provide long runs or split-room coverage
• Includes six stainless-style clamps for firm sealing
• 3 ft outlet pipe simplifies the connection to the heater housing

What makes the ducting durable and heat resistant?

The hoses use a multilayer construction: laminated nylon mesh reinforced with steel wire to hold shape while remaining flexible. That assembly tolerates daily heater temperatures up to 212°F (100°C) with low odor and minimal softening, so the ducts remain reliable in repeated use. Reinforced edges reduce abrasion when pulled through tight runs.

• Multi-layer laminated fabric for thermal stability
• Steel wire helix keeps round shape and prevents collapse
• Rated for up to 212°F (100°C) typical heater air temperatures
• Low-odor materials suitable for enclosed cabins

How does the adjustable Y splitter improve heat distribution?

The included Y-shaped splitter has two shutoff valves so you can redirect airflow between two zones or close one side entirely when not needed. That controllability lets you prioritize heat to a driver’s area, sleeper berth, galley, or cockpit without wasting energy. The valves tighten to limit leakage and work smoothly even after repeated adjustments.

• Dual adjustable valves allow precise airflow balancing
• Close one branch completely to concentrate warmth elsewhere
• Smooth operation for frequent rerouting of air distribution
• Compact Y design fits tight installation spaces

What exactly is included and how simple is the installation?

The kit arrives with everything required for a standard multi-run installation: two 8-foot flexible ducts, one 3-foot outlet pipe, a Y splitter with adjustable valves, two inline air vents, and six hose clamps. No special tools are needed beyond common screwdrivers or a nut driver to tighten clamps. Typical installs can be completed in an afternoon by a DIYer or professional installer familiar with heater ducting.

• Two 8 ft nylon-reinforced heater ducts and one 3 ft outlet pipe
• One adjustable Y splitter and two air outlet vents
• Six clamps to secure all connections and prevent leaks
• Straightforward hand-tool installation; no custom fabrication

Who is this for: The Hon&Guan 3" Diesel Heater Hose Kit is aimed at vehicle owners, fleet technicians and DIY vanlifers who need to extend or split warm-air runs from 5KW–8KW diesel parking heaters. It’s ideal for trucks, RVs, campers and small boats where flexible, heat-resistant ducting and the ability to control airflow between two zones improve comfort and installation flexibility.