Description
- Quick and convenient to use – doses in 30 seconds – no need to drain down the system
- Neutral, universal cleaner for pre-commissioning new and existing heating systems
- When used in conjunction with Protector F1 gas savings of up to 15% can be achieved every time you heat your room
- One 400ml, 100% recyclable canister treats up to 130 litres of system water (16 radiators) and the equivalent of 250m2 of underfloor systems.
- Compatible with all metals and materials including aluminium
- pH Neutral, non-hazardous and environmentally formulation – add via a radiator, towel rail, filling loop or TF1 System Filter
Physical Specification / Properties
Colour: Amber
 Odour: Faintly aromatic
 Form: Liquid
 pH (conc): 6.4
 pH (in-use) 6.5 – 7.7
 SG: 1.182 @ 20°C
At Heating and catering parts,
We certainly strive to provide the best possible customer experience. Consequently, we understand that sometimes a product may not meet your expectations or requirements. That is why we offer a comprehensive 30-day return policy to ensure your satisfaction. Please read our full Return Policy
We appreciate you buying from our store. Usually, If your order is received by 1:00 p.m. EST (Monday–Friday), we will ship the item the same day. You can count on us to deliver quickly and safely. In other words, we take pride in our prompt and trustworthy service and will do everything we can to ensure the safe arrival of your package. Please note that weekends are not included in our next-day delivery guarantee. Delivery for orders placed on Fridays (the next day) is on the following Monday. At the same time select the Saturday delivery option at checkout if you’d like your purchases delivered on a weekend day.
In a word thank you for choosing us!
Frequently Asked Questions
1. What does Central Heating Cleaner F3 Express 400ml do?
Central Heating Cleaner F3 Express 400ml is designed to clean and protect central heating systems. It removes sludge, scale, and debris, helping to maintain system efficiency and prolong the life of boilers and radiators.
2. How much heating system can one canister treat?
One 400ml canister of Cleaner F3 Express can treat up to 130 litres of system water, which is typically the equivalent of 16 radiators or 250m² of underfloor heating.
3. How do I add the cleaner to my heating system?
The cleaner can be quickly added in just 30 seconds via a radiator air vent, towel rail, system filling loop, or through a TF1 System Filter using the adapter supplied.
4. Is Cleaner F3 Express safe to use with all heating systems?
Yes, it is compatible with all system metals and materials, including aluminium. It is pH neutral, non-hazardous, and environmentally safe.
5. Can Cleaner F3 Express help reduce energy bills?
Yes, when used in conjunction with Protector F1, Cleaner F3 Express can help achieve gas savings of up to 15% by improving heat transfer efficiency within the system.
Brand
Fernox
 Fernox is a leading manufacturer of water treatment chemical products, central heating system filters, plumbing consumables, and diagnostic testing services, having been founded in 1964. Fernox has led the way in the development of energy-efficient products for both traditional and renewable technologies in both residential and commercial applications. The company is committed to a progressive R&D programme and has invested in a large in-house R&D team of scientists based in the UK, US, and India.  Its operating headquarters are in Woking, United Kingdom, and it has manufacturing facilities in the United Kingdom and Europe, as well as offices in France, Germany, Italy, Belgium, the Netherlands, Hungary, the People's Republic of China, and the United States, with plans to expand further into Eastern Europe and Asia. Fernox is a business unit of Element Solutions Inc (NYSE: ESI) and a subsidiary of MacDermid Enthone Industrial Solutions, a global diversified producer of high technology specialty products and a provider of technical services. Element Solutions Inc is a leading specialty chemicals company whose businesses provide a wide range of solutions that improve everyday products.
To reflect a change in the company structure, the global brand equity Fernox was registered as a UK company, Fernox Ltd, in 2019.