This is an authentic, original equipment manufacturer Beretta Boiler Flue Gas Exhaust Fan Assembly (Part Number: 20081316 / 174327 / Riello Ref: 4R100), powered by a genuine SIT NG40M (65W) motor. Engineered specifically for condensing domestic gas boilers, this fan ensures safe and efficient exhaust gas extraction and combustion air delivery in models such as the Beretta Ciao Green 25 CSI and matching Riello heating appliances.
Designed as a direct factory replacement, it resolves boiler fan fault lockouts, burner start-up failure codes, and bearing noise issues.
Genuine OEM Spare Part: Direct replacement fan unit engineered to precise Beretta and Riello factory specifications.
Reliable SIT NG40M Motor: Fitted with an industrial-grade 65W SIT motor designed for high thermal endurance and continuous duty cycles.
Optimal Airflow & Combustion: Restores balanced flue draught, safe combustion air intake, and clean flue gas expulsion.
Direct Plug-and-Play Fitment: Exact OEM mounting flange and multi-pin terminal connections for straightforward installation without modification.
| Attribute | Details |
| Brand Compatibility | Beretta / Riello |
| Beretta Part Number (MPN) | 20081316 / 174327 |
| Riello Cross-Reference | 4R100 |
| Motor Manufacturer / Model | SIT NG40M |
| Motor Power Rating | 65 W |
| Component Type | Flue Gas Exhaust / Combustion Air Fan |
| Primary Boiler Model | Beretta Ciao Green 25 CSI (& compatible variants) |
Fits Beretta Ciao Green 25 CSI condensing boilers.
Compatible with cross-referenced Riello domestic heating appliances utilizing fan part reference 4R100 / 20081316.
(Please check the part number stamped on your original fan or consult your boiler service manual to confirm compatibility prior to purchase).
Status: Brand New / Unused.
Physical Condition: Factory-fresh condition. Motor windings, electrical connector terminals, impeller blades, and mounting housing are in pristine, uninstalled order.
1 x Beretta / Riello Flue Gas Fan Assembly 20081316 (SIT NG40M 65W / 174327 / 4R100)
⚠️ Installation Advisory: In accordance with Gas Safety regulations, installation and commissioning of boiler combustion and flue components must be carried out by a qualified Gas Safe (or regional certified) heating engineer.