£19.32

LavaTap – Fernox F1 Central Heating Inhibitor 500 ml – Inhibitor for Central Heating Systems, Radiator Inhibitor for Rust and Limescale, Improves Flow, Reduces Noise and Heating Bills

Name: LavaTap - Fernox F1 Central Heating Inhibitor 500 ml - Inhibitor for Central Heating Systems, Radiator Inhibitor for Rust and Limescale, Improves Flow, Reduces Noise and Heating Bills
Brand: LavaTap
Price: 19.32 GBP
Availability: InStock

Clear, 56599

Accessories

About as cheap as it gets. The only time it was cheaper was 10 months ago.

£19 today · all-time low £19 (Aug 2025) · usually the usual

NEW HERE?

Amazon shows you one price. We show you all of them.

Tosheroon watches Amazon prices so you don't have to. Every product on Amazon has a price history — we make it visible. Set the price you'd actually pay, and we'll email you the second it gets there. No app, no account, one email.

WHAT'S ON THIS PAGE

↓ Price chart
when this has been cheap or pricey

↓ Forecast
where the price is heading next

↓ Statistics
all-time high & low, recent range

↑ Price alert
name your number, we'll email you

Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 182 days • 169 data points (No recent data available)

Historical

Generating forecast...

Price Distribution

Price distribution over 182 days • 3 price levels

Days at Price

Current Price

Price Analysis

Most common price: £19 (130 days, 76.9%)

Price range: £19 - £23

Price levels: 3 different prices over 169 days

Description

LavaTap – Fernox F1 Central Heating Inhibitor 500 ml is a trusted inhibitor for central heating systems, designed to provide long-lasting protection against rust, scale, and corrosion. This Fernox F1 inhibitor is ideal for homeowners and professionals looking to preserve system health, extend boiler life, and improve efficiency. Fernox F1 Protector functions as a radiator inhibitor, guarding your radiators and boiler components from corrosion, sludge, and scaling. It is suitable for use in all system types, including mixed-metal and aluminium installations. Fernox F1 protector central heating solution also works with both open vented and sealed systems, offering wide compatibility. Each 500 ml bottle treats systems up to 130 litres in volume, equivalent to 16 radiators or 250 m² of underfloor heating. For optimal performance, use Fernox F1 after a radiator flush or cleaning with Fernox F3 or F8. This locks in long-term protection and also helps improve fuel efficiency and can achieve up to 15% gas savings per heating cycle. For systems requiring maintenance or cleaning, this product supports the effects of a radiator flush and promotes cleaner system operation. Engineers and DIY users trust Fernox F1 for its industry-leading protection. The formula acts as an inhibitor, preventing debris, corrosion, and scale before they cause blockages or performance issues. Compatible with other Fernox products, this central heating inhibitor is safe, non-toxic, and fully approved by NSF, KIWA, and Belgaqua. For best practice in line with BS 7593:2019, systems should be checked annually and re-dosed every five years to maintain performance.

Key Features

Fernox F1 Central Heating Inhibitor: This Fernox F1 central heating inhibitor protects sealed and open vented systems by preventing rust, limescale, and internal corrosion in radiators and boilers

Inhibitor for Central Heating: Inhibitor for central heating systems that complies with BS 7593:2019 and helps maintain reliable heating, reduce system wear, and extend component lifespan

Radiator Inhibitor and Rust Inhibitor: Dual-purpose radiator inhibitor and rust inhibitor that reduces sludge build-up and improves circulation for faster, more even radiator heat

Rust Cleaner and Radiator Flush Compatible: Use after radiator flush with Fernox F3 or F8 to stabilise pH and act as a rust cleaner, keeping internal surfaces clean and scale-free

Rust Treatment and System Protector: Though classified as an inhibitor, this product also serves as a rust treatment and functional system protector, helping reduce radiator noise and boiler strain

Lower Heating Bills and Energy Use: By maintaining system efficiency, this central heating inhibitor helps lower heating bills, reduce gas consumption, and support long-term energy savings

Product Specifications

Brand: LavaTap
Model: 56599
Colour: Clear
Size: 500ml
ASIN: B0FD418FS1
Category: DIY & Tools > Building Supplies > Heating & Cooling > Central Heating Systems & Accessories > Accessories
Domain: Amazon UK
Listed Since: 13 June 2025

Barcode

No barcode data available

LavaTap – Fernox F1 Central Heating Inhibitor 500 ml – Inhibitor for Central Heating Systems, Radiator Inhibitor for Rust and Limescale, Improves Flow, Reduces Noise and Heating Bills

About as cheap as it gets. The only time it was cheaper was 10 months ago.

Price History & Forecast

Price Distribution

Price Analysis

Description

Key Features

Product Specifications

Barcode

Similar Products You Might Like

DuraTherm® 600 x 600mm Black Horizontal Designer Radiator Single Column Oval Tube Modern Central Heating Panel Bathroom Radiators

DuraTherm® 1800 x 560mm Black Traditional Vertical Designer Radiator Triple Column Colosseum Cast Iron Style Central Heating Panel Radiators Rad

DuraTherm® 1600 x 360mm Black Vertical Designer Radiator Single Column Oval Tube Modern Central Heating Panel Bathroom Radiators

Honeywell Home Smart Radiator Thermostat Valve/HR 27 ECO ETRV/Programmable Thermostatic Radiator Valve/Digital Intelligent Central Heating Controller/White / 2-Pack

Trident - Central Heating Inhibitor - Protection Against Corrosion & Limescale - Reduces Boiler Noise - Enhances System Efficiency - 10 Pack of 500ml

NRG 1600x272 Vertical Flat Panel Designer Radiators Central Heating Rad White

NRG 1600x680 Vertical Flat Panel Designer Radiators Central Heating Rad Black

Danfoss 014G1115 Eco Programmable Radiator Thermostat with Bluetooth Function UK Smart Thermostat

NRG 1600x408 Vertical Flat Panel Designer Radiators Central Heating Rad Anthracite

NRG 1800x272 Vertical Flat Panel Designer Radiators Central Heating Rad Anthracite

UK Radiators White Pipe Sleeve - Gloss Finish, 300mm Brass, 130mm Fit

NRG White Oval Radiator Horizontal 600x1593mm Double Panel Central Heating Perfect for Bathrooms Kitchen Living Room

Dickie Dyer 991866 Drain Down Hose Kit 4pce 10m , Orange

Milano Windsor White Dual Fuel Radiator 1800mm x 290mm - 3 Column

NRG Vertical 1600x272mm Double Flat Panel Radiator Central Heating for Bathroom/Kitchen/Living Room

iBathUK Regency Traditional Vertical Column Radiator, Triple Panel Radiators, Raw Metal Iron Style Radiators for Bathroom,Kitchen,Living Room 1800x380mm

Honeywell Home Smart Radiator Thermostat Valve/HR 27 ECO ETRV/Programmable Thermostatic Radiator Valve/Digital Intelligent Central Heating Controller/White

NRG 1800x272 Vertical Flat Panel Designer Radiators Central Heating Rad Double Column White

NRG 1600x272mm Single Flat Tube Central Heating Panel Radiators Rad Chrome

NRG 600x1428mm Horizontal Flat Panel Designer Radiator Bathroom Heater Central Heating Rad Single Column Black

NRG 1600x408 Vertical Column Designer Radiator Black Double Flat Panel

NRG 600x612mm Horizontal Flat Panel Designer Bathroom Central Heating Radiator Gloss White Single Column - Perfect for Bathroom, Bedroom, Kitchen, Hallway, Living Room

NRG 600x1020mm Horizontal Flat Panel Designer Bathroom Central Heating Radiator Gloss White Double Column - Perfect for Bathroom, Bedroom, Kitchen, Hallway, Living Room

DuraTherm® 1600 x 300mm Anthracite Grey Vertical Designer Radiator Single Column Flat Panel Modern Central Heating Panels Bathroom Radiators