A genuine OEM flue / flue-extension kit for Thetford upright absorption refrigerators. Designed to adapt or extend the exhaust / ventilation pathway (flue) so the hot exhaust air is safely expelled and does not re-enter the fridge vent, improving safety, cooling efficiency, and performance.

OEM Part Number: 637085 / 700-03722

Suitable for N3,N4,N5,N6 Series Refrigerators Only

Kit contains:

• Direct vent cap
• TCap Assy
• Long extension
• 4x Short extensions

Frequently Asked Questions 

Q: What problem does this flue kit solve?
It ensures hot exhaust gases from your fridge’s absorption burner do not re-enter through the upper vent and that you have a safe route for exhaust air to exit. This helps maintain cooling performance, prevents heat damage around cabinetry, reduces odours, and enhances safety.

Q: Will this fix cooling issues alone?
It may help if the issue is due to poor exhaust / re-ingress of exhaust air.

Q: Do I need both upper and lower vents plus flue?
Yes. For best operation, your fridge should have: top vent, bottom vent, and the flue (especially for the gas exhaust).