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Ariston Horizontal Flue Kit 60/100 SE 3319648 — Next Evo X Standard Coaxial Through-Wall Flue Stainless Steel 800mm
Ariston Horizontal Flue Kit 60/100 SE 3319648 — Next Evo X Standard Coaxial Through-Wall Flue Stainless Steel 800mm
The Ariston Horizontal Flue Kit 60/100 SE (MPN 3319648) is the standard through-wall coaxial flue kit for the Ariston Next Evo X range of room-sealed gas instantaneous water heaters. It provides the complete 60/100mm coaxial termination assembly for a standard horizontal installation through a domestic or commercial wall — the most common flue route for multipoint water heater installations. Constructed from stainless steel with a white finish, the kit is 800mm in overall length and includes all components required for a normal installation. A 60/100mm coaxial flue is mandatory for both the Next Evo X 11 LPG (3632535) and Next Evo X 16 Natural Gas (3632533) — neither heater can operate without it.
⚠ Gas Safe Installation Required — Next Evo X Range Only — This flue kit is compatible with the Ariston Next Evo X gas water heater range only. It must be installed by a Gas Safe registered engineer in accordance with the Ariston installation manual and current Building Regulations Part J. The flue terminal must be positioned to comply with minimum clearance distances from openings, corners, and ventilation points as detailed in the installation manual. Do not use with any other manufacturer's appliance.
ℹ What Is a 60/100 Coaxial Flue?
A 60/100mm coaxial flue (also called "room-sealed" or "concentric") consists of two concentric pipes: the inner 60mm pipe carries combustion gases from the appliance to the outside; the outer 100mm pipe draws fresh combustion air in from the outside to the appliance. Because air and flue gases are completely separated from the room, the appliance can be installed in any room without a permanent ventilation opening — including sealed rooms, bathrooms, and kitchens. This is why room-sealed appliances are significantly safer than open-flued alternatives in modern airtight buildings.
A 60/100mm coaxial flue (also called "room-sealed" or "concentric") consists of two concentric pipes: the inner 60mm pipe carries combustion gases from the appliance to the outside; the outer 100mm pipe draws fresh combustion air in from the outside to the appliance. Because air and flue gases are completely separated from the room, the appliance can be installed in any room without a permanent ventilation opening — including sealed rooms, bathrooms, and kitchens. This is why room-sealed appliances are significantly safer than open-flued alternatives in modern airtight buildings.
60/100mm
Coaxial diameter
800mm
Overall length
Horizontal
Through-wall
S/Steel
White finish
Next Evo X
Compatible range
Features & Benefits
✔ Genuine Ariston — Guaranteed Compatibility
Using a genuine Ariston flue kit — not a third-party alternative — is essential for warranty validity, Gas Safe compliance, and safe operation. The 3319648 kit is specifically engineered and tested for the Next Evo X 11 (3632535) and Next Evo X 16 (3632533) appliances, with correct gasket sizing, joint geometry, and wall terminal design to match the appliance's combustion fan pressure, flue gas temperature, and flow rate. Third-party 60/100 kits may not provide the correct resistance characteristics, which can impair combustion and CO safety.
✔ Stainless Steel — Acid-Resistant Construction
Instantaneous gas water heater flue gases can be mildly acidic and contain condensate — particularly at the lower firing rates used in ECO mode. Stainless steel construction resists corrosion from acidic condensate over the appliance's service life, unlike aluminium or plastic-coated mild steel flues that can degrade in extended low-temperature operation. The white external finish ensures a clean appearance at the wall terminal, matching the appliance's white casing.
✔ Complete Kit — All Parts Included
The 3319648 kit is supplied as a complete installation set including the coaxial flue pipe, 90° elbow, clamp, seals, and fixing screws — all components needed for a standard straight through-wall horizontal termination. The 800mm overall length accommodates most standard wall thicknesses. For walls thicker than the standard kit length, or for installations requiring bends, elbows, or extensions, additional Ariston SE coaxial flue accessories (3318003 90° elbow, 3318004 45° bend pair, 3318005 1m extension, 3318006 0.5m extension) are available separately.
✔ Replaces MPN 3318000
The 3319648 is the current replacement for the earlier Ariston horizontal flue kit MPN 3318000. Both are compatible with the Next Evo X range — if your documentation, warranty paperwork, or installation manual references 3318000, the 3319648 is the correct current equivalent. Both kits use the same 60/100 SE coaxial system and share the same flue accessory range for extensions and bends.
Technical Specifications — Horizontal Flue Kit 60/100 SE (3319648)
| MPN | 3319648 (replaces 3318000) |
| Flue Type | Coaxial horizontal — standard efficiency (SE) |
| Diameter | 60/100mm — 60mm inner (flue gas) / 100mm outer (air intake) |
| Overall Length | 800mm |
| Material | Stainless steel |
| Colour / Finish | White |
| Orientation | Horizontal — through-wall termination |
| Kit Contents | Coaxial flue pipe · 90° elbow · clamp · seals · screws |
| Compatible Appliances | Ariston Next Evo X 11 LPG (3632535) · Ariston Next Evo X 16 Natural Gas (3632533) |
| Related Accessories | 90° elbow 3318003 · 45° bend pair 3318004 · 1m extension 3318005 · 0.5m extension 3318006 · bracket kit 3318015 |
Frequently Asked Questions
Will this flue kit work with both the 11L LPG and 16L natural gas models?
Yes — the 3319648 horizontal flue kit is compatible with both the Next Evo X 11 LPG (3632535) and the Next Evo X 16 Natural Gas (3632533). Both appliances use the same 60/100mm coaxial flue connection and the same SE flue accessory system. The flue kit is not interchangeable with other Ariston appliance ranges — it must only be used with the Next Evo X series.
What if my wall is thicker than 800mm, or I need to route around an obstacle?
For walls thicker than the standard kit allows, or where the flue needs to change direction before the terminal, Ariston offers a range of SE coaxial flue accessories: a 1-metre extension (3318005), a 0.5-metre extension (3318006), a 90° elbow (3318003), and a 45° bend pair (3318004). The maximum permissible total flue length depends on the number of bends — consult the Ariston Next Evo X installation manual's flue duct length table, which provides maximum equivalent lengths for straight runs and with bends. Each 90° elbow is equivalent to approximately 1m of straight pipe.
Where must the flue terminal be positioned on the external wall?
The flue terminal position must comply with Building Regulations Part J, Table B1 — which sets minimum clearance distances from openings (windows, doors), corners, and other ventilation points. Key minimums include: 300mm below, above, and to either side of an opening into a building; 300mm from an external corner; 600mm from an electricity meter or gas meter; and specific clearances from soil pipes and drain openings. The terminal must not be positioned where flue gases could re-enter the building or cause nuisance to neighbours. Your Gas Safe engineer will confirm the final position against the current regulations.
Can I use a third-party 60/100mm flue kit instead?
Ariston strongly recommend using only genuine Ariston flue components with the Next Evo X appliances. Using third-party flue kits may void the appliance warranty and could create safety risks if the kit's characteristics (gasket dimensions, pipe resistance, terminal geometry) do not match the appliance's design parameters. The Gas Safe registered engineer is responsible for ensuring all flue components are appropriate for the appliance — most will only fit manufacturer-approved components to maintain compliance with the manufacturer's installation requirements.
$26.45
Original: $75.58
-65%Ariston Horizontal Flue Kit 60/100 SE 3319648 — Next Evo X Standard Coaxial Through-Wall Flue Stainless Steel 800mm—
$75.58
$26.45Ariston Horizontal Flue Kit 60/100 SE 3319648 — Next Evo X Standard Coaxial Through-Wall Flue Stainless Steel 800mm
The Ariston Horizontal Flue Kit 60/100 SE (MPN 3319648) is the standard through-wall coaxial flue kit for the Ariston Next Evo X range of room-sealed gas instantaneous water heaters. It provides the complete 60/100mm coaxial termination assembly for a standard horizontal installation through a domestic or commercial wall — the most common flue route for multipoint water heater installations. Constructed from stainless steel with a white finish, the kit is 800mm in overall length and includes all components required for a normal installation. A 60/100mm coaxial flue is mandatory for both the Next Evo X 11 LPG (3632535) and Next Evo X 16 Natural Gas (3632533) — neither heater can operate without it.
⚠ Gas Safe Installation Required — Next Evo X Range Only — This flue kit is compatible with the Ariston Next Evo X gas water heater range only. It must be installed by a Gas Safe registered engineer in accordance with the Ariston installation manual and current Building Regulations Part J. The flue terminal must be positioned to comply with minimum clearance distances from openings, corners, and ventilation points as detailed in the installation manual. Do not use with any other manufacturer's appliance.
ℹ What Is a 60/100 Coaxial Flue?
A 60/100mm coaxial flue (also called "room-sealed" or "concentric") consists of two concentric pipes: the inner 60mm pipe carries combustion gases from the appliance to the outside; the outer 100mm pipe draws fresh combustion air in from the outside to the appliance. Because air and flue gases are completely separated from the room, the appliance can be installed in any room without a permanent ventilation opening — including sealed rooms, bathrooms, and kitchens. This is why room-sealed appliances are significantly safer than open-flued alternatives in modern airtight buildings.
A 60/100mm coaxial flue (also called "room-sealed" or "concentric") consists of two concentric pipes: the inner 60mm pipe carries combustion gases from the appliance to the outside; the outer 100mm pipe draws fresh combustion air in from the outside to the appliance. Because air and flue gases are completely separated from the room, the appliance can be installed in any room without a permanent ventilation opening — including sealed rooms, bathrooms, and kitchens. This is why room-sealed appliances are significantly safer than open-flued alternatives in modern airtight buildings.
60/100mm
Coaxial diameter
800mm
Overall length
Horizontal
Through-wall
S/Steel
White finish
Next Evo X
Compatible range
Features & Benefits
✔ Genuine Ariston — Guaranteed Compatibility
Using a genuine Ariston flue kit — not a third-party alternative — is essential for warranty validity, Gas Safe compliance, and safe operation. The 3319648 kit is specifically engineered and tested for the Next Evo X 11 (3632535) and Next Evo X 16 (3632533) appliances, with correct gasket sizing, joint geometry, and wall terminal design to match the appliance's combustion fan pressure, flue gas temperature, and flow rate. Third-party 60/100 kits may not provide the correct resistance characteristics, which can impair combustion and CO safety.
✔ Stainless Steel — Acid-Resistant Construction
Instantaneous gas water heater flue gases can be mildly acidic and contain condensate — particularly at the lower firing rates used in ECO mode. Stainless steel construction resists corrosion from acidic condensate over the appliance's service life, unlike aluminium or plastic-coated mild steel flues that can degrade in extended low-temperature operation. The white external finish ensures a clean appearance at the wall terminal, matching the appliance's white casing.
✔ Complete Kit — All Parts Included
The 3319648 kit is supplied as a complete installation set including the coaxial flue pipe, 90° elbow, clamp, seals, and fixing screws — all components needed for a standard straight through-wall horizontal termination. The 800mm overall length accommodates most standard wall thicknesses. For walls thicker than the standard kit length, or for installations requiring bends, elbows, or extensions, additional Ariston SE coaxial flue accessories (3318003 90° elbow, 3318004 45° bend pair, 3318005 1m extension, 3318006 0.5m extension) are available separately.
✔ Replaces MPN 3318000
The 3319648 is the current replacement for the earlier Ariston horizontal flue kit MPN 3318000. Both are compatible with the Next Evo X range — if your documentation, warranty paperwork, or installation manual references 3318000, the 3319648 is the correct current equivalent. Both kits use the same 60/100 SE coaxial system and share the same flue accessory range for extensions and bends.
Technical Specifications — Horizontal Flue Kit 60/100 SE (3319648)
| MPN | 3319648 (replaces 3318000) |
| Flue Type | Coaxial horizontal — standard efficiency (SE) |
| Diameter | 60/100mm — 60mm inner (flue gas) / 100mm outer (air intake) |
| Overall Length | 800mm |
| Material | Stainless steel |
| Colour / Finish | White |
| Orientation | Horizontal — through-wall termination |
| Kit Contents | Coaxial flue pipe · 90° elbow · clamp · seals · screws |
| Compatible Appliances | Ariston Next Evo X 11 LPG (3632535) · Ariston Next Evo X 16 Natural Gas (3632533) |
| Related Accessories | 90° elbow 3318003 · 45° bend pair 3318004 · 1m extension 3318005 · 0.5m extension 3318006 · bracket kit 3318015 |
Frequently Asked Questions
Will this flue kit work with both the 11L LPG and 16L natural gas models?
Yes — the 3319648 horizontal flue kit is compatible with both the Next Evo X 11 LPG (3632535) and the Next Evo X 16 Natural Gas (3632533). Both appliances use the same 60/100mm coaxial flue connection and the same SE flue accessory system. The flue kit is not interchangeable with other Ariston appliance ranges — it must only be used with the Next Evo X series.
What if my wall is thicker than 800mm, or I need to route around an obstacle?
For walls thicker than the standard kit allows, or where the flue needs to change direction before the terminal, Ariston offers a range of SE coaxial flue accessories: a 1-metre extension (3318005), a 0.5-metre extension (3318006), a 90° elbow (3318003), and a 45° bend pair (3318004). The maximum permissible total flue length depends on the number of bends — consult the Ariston Next Evo X installation manual's flue duct length table, which provides maximum equivalent lengths for straight runs and with bends. Each 90° elbow is equivalent to approximately 1m of straight pipe.
Where must the flue terminal be positioned on the external wall?
The flue terminal position must comply with Building Regulations Part J, Table B1 — which sets minimum clearance distances from openings (windows, doors), corners, and other ventilation points. Key minimums include: 300mm below, above, and to either side of an opening into a building; 300mm from an external corner; 600mm from an electricity meter or gas meter; and specific clearances from soil pipes and drain openings. The terminal must not be positioned where flue gases could re-enter the building or cause nuisance to neighbours. Your Gas Safe engineer will confirm the final position against the current regulations.
Can I use a third-party 60/100mm flue kit instead?
Ariston strongly recommend using only genuine Ariston flue components with the Next Evo X appliances. Using third-party flue kits may void the appliance warranty and could create safety risks if the kit's characteristics (gasket dimensions, pipe resistance, terminal geometry) do not match the appliance's design parameters. The Gas Safe registered engineer is responsible for ensuring all flue components are appropriate for the appliance — most will only fit manufacturer-approved components to maintain compliance with the manufacturer's installation requirements.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Ariston Horizontal Flue Kit 60/100 SE (MPN 3319648) is the standard through-wall coaxial flue kit for the Ariston Next Evo X range of room-sealed gas instantaneous water heaters. It provides the complete 60/100mm coaxial termination assembly for a standard horizontal installation through a domestic or commercial wall — the most common flue route for multipoint water heater installations. Constructed from stainless steel with a white finish, the kit is 800mm in overall length and includes all components required for a normal installation. A 60/100mm coaxial flue is mandatory for both the Next Evo X 11 LPG (3632535) and Next Evo X 16 Natural Gas (3632533) — neither heater can operate without it.
⚠ Gas Safe Installation Required — Next Evo X Range Only — This flue kit is compatible with the Ariston Next Evo X gas water heater range only. It must be installed by a Gas Safe registered engineer in accordance with the Ariston installation manual and current Building Regulations Part J. The flue terminal must be positioned to comply with minimum clearance distances from openings, corners, and ventilation points as detailed in the installation manual. Do not use with any other manufacturer's appliance.
ℹ What Is a 60/100 Coaxial Flue?
A 60/100mm coaxial flue (also called "room-sealed" or "concentric") consists of two concentric pipes: the inner 60mm pipe carries combustion gases from the appliance to the outside; the outer 100mm pipe draws fresh combustion air in from the outside to the appliance. Because air and flue gases are completely separated from the room, the appliance can be installed in any room without a permanent ventilation opening — including sealed rooms, bathrooms, and kitchens. This is why room-sealed appliances are significantly safer than open-flued alternatives in modern airtight buildings.
A 60/100mm coaxial flue (also called "room-sealed" or "concentric") consists of two concentric pipes: the inner 60mm pipe carries combustion gases from the appliance to the outside; the outer 100mm pipe draws fresh combustion air in from the outside to the appliance. Because air and flue gases are completely separated from the room, the appliance can be installed in any room without a permanent ventilation opening — including sealed rooms, bathrooms, and kitchens. This is why room-sealed appliances are significantly safer than open-flued alternatives in modern airtight buildings.
60/100mm
Coaxial diameter
800mm
Overall length
Horizontal
Through-wall
S/Steel
White finish
Next Evo X
Compatible range
Features & Benefits
✔ Genuine Ariston — Guaranteed Compatibility
Using a genuine Ariston flue kit — not a third-party alternative — is essential for warranty validity, Gas Safe compliance, and safe operation. The 3319648 kit is specifically engineered and tested for the Next Evo X 11 (3632535) and Next Evo X 16 (3632533) appliances, with correct gasket sizing, joint geometry, and wall terminal design to match the appliance's combustion fan pressure, flue gas temperature, and flow rate. Third-party 60/100 kits may not provide the correct resistance characteristics, which can impair combustion and CO safety.
✔ Stainless Steel — Acid-Resistant Construction
Instantaneous gas water heater flue gases can be mildly acidic and contain condensate — particularly at the lower firing rates used in ECO mode. Stainless steel construction resists corrosion from acidic condensate over the appliance's service life, unlike aluminium or plastic-coated mild steel flues that can degrade in extended low-temperature operation. The white external finish ensures a clean appearance at the wall terminal, matching the appliance's white casing.
✔ Complete Kit — All Parts Included
The 3319648 kit is supplied as a complete installation set including the coaxial flue pipe, 90° elbow, clamp, seals, and fixing screws — all components needed for a standard straight through-wall horizontal termination. The 800mm overall length accommodates most standard wall thicknesses. For walls thicker than the standard kit length, or for installations requiring bends, elbows, or extensions, additional Ariston SE coaxial flue accessories (3318003 90° elbow, 3318004 45° bend pair, 3318005 1m extension, 3318006 0.5m extension) are available separately.
✔ Replaces MPN 3318000
The 3319648 is the current replacement for the earlier Ariston horizontal flue kit MPN 3318000. Both are compatible with the Next Evo X range — if your documentation, warranty paperwork, or installation manual references 3318000, the 3319648 is the correct current equivalent. Both kits use the same 60/100 SE coaxial system and share the same flue accessory range for extensions and bends.
Technical Specifications — Horizontal Flue Kit 60/100 SE (3319648)
| MPN | 3319648 (replaces 3318000) |
| Flue Type | Coaxial horizontal — standard efficiency (SE) |
| Diameter | 60/100mm — 60mm inner (flue gas) / 100mm outer (air intake) |
| Overall Length | 800mm |
| Material | Stainless steel |
| Colour / Finish | White |
| Orientation | Horizontal — through-wall termination |
| Kit Contents | Coaxial flue pipe · 90° elbow · clamp · seals · screws |
| Compatible Appliances | Ariston Next Evo X 11 LPG (3632535) · Ariston Next Evo X 16 Natural Gas (3632533) |
| Related Accessories | 90° elbow 3318003 · 45° bend pair 3318004 · 1m extension 3318005 · 0.5m extension 3318006 · bracket kit 3318015 |
Frequently Asked Questions
Will this flue kit work with both the 11L LPG and 16L natural gas models?
Yes — the 3319648 horizontal flue kit is compatible with both the Next Evo X 11 LPG (3632535) and the Next Evo X 16 Natural Gas (3632533). Both appliances use the same 60/100mm coaxial flue connection and the same SE flue accessory system. The flue kit is not interchangeable with other Ariston appliance ranges — it must only be used with the Next Evo X series.
What if my wall is thicker than 800mm, or I need to route around an obstacle?
For walls thicker than the standard kit allows, or where the flue needs to change direction before the terminal, Ariston offers a range of SE coaxial flue accessories: a 1-metre extension (3318005), a 0.5-metre extension (3318006), a 90° elbow (3318003), and a 45° bend pair (3318004). The maximum permissible total flue length depends on the number of bends — consult the Ariston Next Evo X installation manual's flue duct length table, which provides maximum equivalent lengths for straight runs and with bends. Each 90° elbow is equivalent to approximately 1m of straight pipe.
Where must the flue terminal be positioned on the external wall?
The flue terminal position must comply with Building Regulations Part J, Table B1 — which sets minimum clearance distances from openings (windows, doors), corners, and other ventilation points. Key minimums include: 300mm below, above, and to either side of an opening into a building; 300mm from an external corner; 600mm from an electricity meter or gas meter; and specific clearances from soil pipes and drain openings. The terminal must not be positioned where flue gases could re-enter the building or cause nuisance to neighbours. Your Gas Safe engineer will confirm the final position against the current regulations.
Can I use a third-party 60/100mm flue kit instead?
Ariston strongly recommend using only genuine Ariston flue components with the Next Evo X appliances. Using third-party flue kits may void the appliance warranty and could create safety risks if the kit's characteristics (gasket dimensions, pipe resistance, terminal geometry) do not match the appliance's design parameters. The Gas Safe registered engineer is responsible for ensuring all flue components are appropriate for the appliance — most will only fit manufacturer-approved components to maintain compliance with the manufacturer's installation requirements.
