Payment methods
Ferroli Optimax Boiler Auto Air Vent 39818220
IN STOCK
FROM £21.99
Ferroli Optimax Boiler Auto Air Vent 39818220
Product Overview
The Ferroli Optimax Boiler Auto Air Vent 39818220 is a replacement hydraulic component designed for use within selected Ferroli heating systems.
The automatic air vent (AAV) is an important part of the boiler's hydraulic circuit. It automatically releases trapped air from the heating system, helping to maintain efficient water circulation, reduce system noise, and prevent airlocks that can affect boiler performance. A correctly functioning AAV supports reliable operation and helps protect the heating system from issues caused by trapped air.
ℹ️ Product Condition Options:
This part may be available in New or Refurbished condition. Please check the available options from the dropdown menu.
Technical Insight & Common Failure Symptoms
During normal operation, small amounts of air can accumulate within the boiler's hydraulic system. The automatic air vent is designed to release this trapped air automatically, helping maintain correct water flow and system efficiency. Over time, the air vent may become blocked, leak, or fail due to wear, debris, or internal seal deterioration.
Typical symptoms linked to a faulty automatic air vent include:
- Water leaking from the air vent
- Air trapped within the heating system
- Gurgling or bubbling noises from the boiler or radiators
- Poor circulation or reduced heating performance
- Frequent need to bleed radiators
- Heating system operating inefficiently due to trapped air
Replacing a faulty automatic air vent may help restore correct circulation, improve system efficiency, and reduce air-related heating issues.
Compatibility
Manufacturer Part Number (MPN): 39818220
This part is designed for selected models within the Ferroli Optimax range and other compatible Ferroli boilers.
Please strictly verify the manufacturer part number 39818220 against your boiler's technical manual, exploded parts diagram, or existing component before ordering to guarantee correct fitment.
Safety Advice
Boiler hydraulic components involve water pressure and internal heating system assemblies. Installation and servicing must be carried out by a Gas Safe registered engineer in accordance with current regulations and manufacturer instructions.
This part fits the following boilers:
Fits Appliance(s)
GC No.
Ferroli Domi Compact F24 B (01-09-2006)
47-267-37 (30K0237002)
Ferroli Domi Compact F24 D (01-04-2006)
47-267-39 (30K0127004)
Ferroli Domi Compact F30 B (01-09-2006)
47-267-38 (30K0238001)
Ferroli Domi Compact F30 D (27-06-2006)
47-267-40 (30K0296000)
Ferroli Domi Condense F24 (08/06/2009)
47-267-50 (30K0815000)
Ferroli Domi Condense F28 (08/06/2009)
47-267-46 (30K0815000)
Ferroli Domi Condense HE 26 C
47-267-54 (30K0949000)
Ferroli Econcept 51 A
51A (30K0728003)
Ferroli FERCondens 25 HE (01-05-2014)
47-267-61 (30K1239000)
Ferroli I 25 E (11-04-2017 )
47-267-64 (30K1531000)
Ferroli I 29 E (11-04-2017 )
47-267-65 (30K1531000)
Ferroli Lamborghini Extrema 30 C
47-267-48 (30K0797000)
Ferroli Lamborghini Extrema 38 C
47-267-49 (30K0798000)
Ferroli Modena HE 18 S
41-267-40
Ferroli Modena HE 25 C
47-267-58
Ferroli Modena HE 25 S
41-267-41
Ferroli Modena HE 27 C LPG
47-267-57 LPG
Ferroli Modena HE 30 C
47-267-56
Ferroli Modena HE 32 C LPG
47-267-55 LPG
Ferroli Modena HE 32 S
41-267-42
Ferroli Modena HE 38 C
47-267-63
Ferroli Optimax HE 18 S
41-267-27
Ferroli Optimax HE 25 S
41-267-25
Ferroli Optimax HE 31 C
47-267-42
Ferroli Optimax HE 31 S
41-267-26
Ferroli Optimax HE 38 C
47-267-43
Ferroli Optimax HE Plus 18 S
41-267-31
Ferroli Optimax HE Plus 25 S
41-267-32
Ferroli Optimax HE Plus 31 C
47-267-44
Ferroli Optimax HE Plus 35 S
41-267-33
Ferroli Optimax HE Plus 38 C
47-267-45
Ferroli T-One 18 S HE ( 14-02-2014 )
41-267-43
Ferroli T-One 25 C HE ( 14-02-2014 )
47-267-59 (30K1259000)
Ferroli T-One 25 S HE ( 14-02-2014 )
41-267-44
Ferroli T-One 30 C HE ( 14-02-2014 )
47-267-60
Ferroli T-One 32 S HE ( 14-02-2014 )
41-267-45
Delivery
Free next day UK delivery is available on orders over £50.
Orders placed before 3 PM are usually dispatched the same working day.
Delivery times may vary for remote areas, Highlands, islands, and non-mainland UK destinations.
If you need urgent delivery help, please contact our customer service team before placing your order.
All Orders First 30 Days:
You can return or cancel your orders for any reason at any time within 30 days of receipt. After 30 days, we reserve the right to charge a restocking fee or refuse the return.
Parts must be returned in the same condition and packaging as received, or we may deduct a percentage of the cost of the part.
A full refund or exchange will be agreed once the item(s) have been received and inspected to ensure they are unused and in their original packaging where applicable.
If the part is returned as faulty and is found to be working upon inspection, postage costs will be deducted from the refund.
Faulty Items After 30 Days:
All items come with a 1 year HTS warranty from the date of purchase. Warranty means HTS will repair or replace the item.
Refunds:
Our returns team will process your refund after we receive and check your items. Please allow up to 15 days for your refund to be processed.
The refund will be made to the original payment method used to place the order.
Contact Us:
For any queries, email us at returns@heatingtradesupplies.com or call +44 01912633708.
Customer Services
National Boiler Spares Ltd
Tyne View Terrace
Wallsend
Tyne and Wear
NE28 6SG
