Calmag CalChem 3-in-1 Central Heating Chemical Inhibitor
CALCHEM
Improve Heating Performance Today
The Calmag CalChem 3-in-1 chemical inhibitor is a powerful all-in-one solution designed to clean, restore, and protect central heating systems.
Unlike standard inhibitors, CalChem combines cleaning, corrosion protection, and antifreeze properties in a single treatment, making it ideal for systems that have not been powerflushed or previously treated.
Learn more about our central heating chemicals.
What Does CalChem Do?
CalChem works immediately on contact with contaminants inside your system, targeting:
- Sludge and debris
- Limescale deposits
- Flux residues
- Bacteria and algae
Its advanced formula helps restore heating efficiency while protecting against future damage.
Key Benefits
- All-in-one solution (cleaner + inhibitor + antifreeze)
- Restores system efficiency
- Reduces boiler noise and radiator issues
- Prevents corrosion and limescale buildup
- Lubricates valves and pumps
- Suppresses bacteria and gas formation
- Easy to use – add and leave in system
- Suitable for all system types (including aluminium and copper)
Suitable Applications
- Domestic central heating systems
- Boilers and radiators
- Older or untreated systems
- Maintenance and system upgrades
3-in-1 Protection Explained
1. Cleaning Action
Breaks down sludge and system debris, improving circulation and heat transfer.
2. Corrosion & Scale Protection
- Rust and corrosion
- Limescale formation
- System deterioration
3. Antifreeze Protection
Includes antifreeze properties to protect systems during colder months and prevent freezing damage.
When Should You Use CalChem?
This product is ideal when:
- A system has not been powerflushed
- No inhibitor has previously been used
- You are experiencing:
- cold spots on radiators
- boiler noise
- poor heating efficiency
It’s a fast alternative to full system cleaning
How to Use
- Add via radiator, filling loop, or header tank
- Leave circulating in the system
- 1 litre treats approx. 10–15 radiators
FAQS
What is a 3-in-1 heating chemical?
It combines cleaner, inhibitor, and antifreeze in one solution.
Item Do I still need power flushing?
Not always—this is designed for systems where flushing hasn’t been done.
How often should I add CalChem?
Typically every 1–2 years for ongoing protection.
CHAT TO AN EXPERT
Please fill in your details and one of our team will get back to you as soon as they can. Or, give us a call on 0800 093 8222
Our offices are open Monday-Friday 08:30-17:00
