Ariston 100mm Coaxial Flue Elbow 90 Degree

Description

The Ariston 90° Coaxial Flue Elbow (Part No. 3318075) is a genuine Ariston Ø60/100 mm push-fit coaxial bend used to redirect the flue run through a right-angle — typically where the horizontal flue must turn a corner before exiting the building, or where a vertical drop is required after leaving the boiler. Compatible with the E-Combi EVO, E-Combi ONE, Clas ONE, Genus ONE, Alteas ONE and related Ariston boiler ranges using the standard 60/100 mm coaxial flue system. Each 90° elbow reduces the effective maximum flue run — refer to the installation manual for the specific deduction applicable to your boiler model.

90°

Bend Angle

Ø60/100

Coaxial Diameter

Push-fit

Connection Type

⚠ Flue Run Deduction — Check Before Ordering: Every 90° elbow reduces the permissible maximum flue length. For E-Combi ONE and related models on the Ø60/100 system, each 90° bend typically deducts 1 metre from the maximum run. Always verify the remaining available run against the installation manual before adding elbows. Exceeding the maximum flue length will compromise combustion safety.

Specification	Detail
Part Number	3318075
Angle	90 degrees
Diameter	Ø60/100 mm coaxial
Connection	Push-fit with lip seal (no clamps required)
Compatible Ranges	E-Combi EVO, E-Combi ONE, Clas ONE, Genus ONE, Alteas ONE, Microgenus HE and other Ariston boilers using Ø60/100 coaxial flue
Quantity	Single elbow

Frequently Asked Questions

How is the 90° elbow fitted to the flue system?

Ensure the lip seal is correctly seated in the inner flue socket before pushing the elbow into the adjacent flue component. The connection is push-fit — no clamps are required to secure the joint. Ensure the inner and outer pipes are fully engaged before any final fixings are made.

Can I use two 90° elbows on the same flue run?

Yes, but each elbow reduces the effective maximum permissible flue length. Using two 90° bends significantly shortens the available run — always calculate the remaining run against your boiler's installation manual before proceeding. For tight routing, 45° bends (3318076) cause a smaller deduction per bend and may give more routing flexibility.

Is this part compatible with the Alteas ONE NET silver flue system?

Part No. 3318075 is the standard grey/white coaxial elbow. The Alteas ONE NET has a silver-coloured matching flue range — the equivalent silver 90° elbow is Part No. 3319166. Both are mechanically identical in dimension and sealing; colour is the only difference.

Do I need a bracket with the 90° elbow?

Ariston recommend fitting one flue bracket per extension piece to adequately support the flue run. The standard flue clamp bracket is Part No. 3318015. Elbows should also be supported, particularly where a horizontal run follows the bend.

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