Hcalory Twist-Lock Heater Adapter (3.5″ to 4″)

🔥 Nomad GearWorks 3.5-Inch to 4-Inch Twist-Lock Heater Adapter

Turn a proprietary outlet into a standard, modular heat system

Some heaters make great heat and then ruin the experience with a non-standard exhaust size. The Hcalory heater uses a proprietary 3.5-inch outlet with twist-lock tabs, making it incompatible with most off-the-shelf ducting and tent passthroughs.

This adapter fixes that.

The Nomad GearWorks Twist-Lock Heater Adapter converts the Hcalory 3.5-inch exhaust to a true 4-inch (100mm) outlet, allowing you to run standard 4-inch heater ducting directly into your NomadPort system. Twist it on, lock it in place, and build a clean, secure heat path from heater to tent with zero hacks.

🔗 Compatible Heater

Designed specifically for the Hcalory diesel heater with the 3.5-inch twist-lock exhaust.
👉 Compatible Heater Link

🔑 Key Features

🔒 True Twist-Lock Fit

Designed to interface directly with the two factory locking lips on the Hcalory heater exhaust. Slide on, twist, and it stays locked in place without clamps, tape, or guesswork.

🔥 High-Temperature Carbon Fiber Nylon

Printed in PAHT-CF, a carbon fiber-reinforced nylon built to withstand continuous heater exhaust temperatures without warping or softening. This is a functional heat component, not a cosmetic adapter.

📏 Converts 3.5-Inch to Standard 4-Inch

Steps the proprietary outlet up to a true 4-inch / 100mm diameter so you can use standard dryer hose, heater ducting, and NomadCoupler accessories.

🧲 NomadPort System Compatible

Pairs perfectly with the NomadCoupler 4-Inch, allowing a complete chain:
Heater → Twist-Lock Adapter → 4-Inch Duct → NomadCoupler → NomadPort

🏕️ Built for Field Use

No adhesives. No friction fit. No melting plastic. This adapter is designed for repeated installs, breakdowns, and real camping conditions.

🛠️ How It Works

1. Align the adapter slots with the locking tabs on the heater exhaust
2. Push on and twist to lock it in place
3. Attach standard 4-inch ducting to the outlet
4. Run ducting into your NomadPort using a 4-Inch NomadCoupler
5. Twist off when breaking camp

🔹 What’s Included

• 1 PAHT-CF carbon fiber nylon twist-lock heater adapter
• Converts Hcalory 3.5-inch exhaust to 4-inch / 100mm ducting
• Compatible with standard 4-inch hose clamps and ducting

🛒 Why This Exists

You should not have to redesign your entire heating setup because one manufacturer chose a non-standard outlet. This adapter bridges that gap and brings the Hcalory heater into the Nomad GearWorks modular ecosystem cleanly, safely, and correctly.

Designed, tested, and printed by Nomad GearWorks.
Built for real heat, real camps, and people who hate workarounds.