howmany radiators will it protect

See the Sentinel Site FAQ (http://www.sentinel-solutions.net/product/detail/central-heating/liquids/x100-inhibitor/) where you will find:What dosage should I use?1 litre of Sentinel X100 is sufficient to treat a typical domestic system of up to 10 radiators.Larger systems should be dosed with 2 litres.Hope this helps.

How is the best way to flush out the system?

Assuming you have a open vented system there should be 2 water tanks in your loft, the smaller tank is the one for central heating, put a stick across it and tie the ball cock to the stick so the tank cannot refill up with water. SWITCH YOUR CENTRAL HEATING OFF ! On one ground floor radiator you will find a little pipe that has ridges on it to which you can fit a length of garden hose so you can drain the water in the system off. I also use a hose clip as the water will be dirty and could stain you carpet if the hose becomes detached. Then close the drain trap put the sentinel in the tank and then release the ball cock so the system fills up, you may need to bleed one or more radiators. Check all the above out on one of the many you tube videos

do I need to flush out after i apply inhibitor a week later?

No, once you have added the inhibitor to the system it stays in there. If you read the container it tells you what the inhibitor does. ( it treats against corrosion etc and lubricates any moving parts such as the pump) I have used this for over 30 years and can tell you that it works. Hope this helps.

What chemical is in this, and is it ok to use without flushing system?

Hi, Its always recommended a full flush or at least X800 is introduced prior to X100. - Hanicks Heating & Spares 01302 279234.

Deliver to Vietnam

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Sentinel - X100 Inhibitor 1L, Market Leading Heavy Duty Central Heating Inhibitor, Protection Against Corrosion and limescale, ensures Maximum Heating Efficiency and extends System Life, Clear (88000)

Sentinel - X100 Inhibitor 1L, Market Leading Heavy Duty Central Heating Inhibitor, Protection Against Corrosion and limescale, ensures Maximum Heating Efficiency and extends System Life, Clear (88000)

Product ID: 48819830

Secure Transaction

Details

Brand
Sentinel
Product dimensions
9.7W x 21H
Special feature
Wide range of
Colour
Yellow
Efficiency
A

⚡Maximizes heating efficiency & fuel savings

🌿pH-neutral, eco-friendly formula

🛡️Heavy-duty corrosion & limescale defense

Description

🛠️ Power up your heating system’s lifespan with Sentinel X100 — the ultimate shield against corrosion!

DUAL ACTION FORMULA - Combats both corrosion and limescale to keep your heating system pristine and reliable
FUEL SMART EFFICIENCY - Extends system life while minimizing fuel consumption—save money and energy effortlessly
ECO CONSCIOUS CHEMISTRY - pH-neutral formulation ensures safe, sustainable use without compromising performance
UNIVERSAL COMPATIBILITY - Wide range of applications for virtually any clean central heating system
INDUSTRY TRUSTED PROTECTION - Recommended by all major boiler manufacturers for unbeatable system defense

Sentinel X100 Inhibitor 1L is a market-leading, heavy-duty central heating inhibitor designed to protect clean heating systems from corrosion and limescale buildup. Recommended by all major boiler manufacturers, it ensures maximum heating efficiency, extends system life, and reduces fuel usage with its pH-neutral, eco-friendly formula.

Specifications

Manufacturer	Sentinel
Part Number	389100
Product Dimensions	13.5 x 7 x 19 cm; 1.12 kg
Item model number	X100L-12X1L-GB
Size	1Ltr
Colour	Yellow
Item Package Quantity	1
Number of Pieces	1
Plug profile	Wall
Special Features	Wide range of applications and double corrosion and limescale protection
Included Components	Sentinel X100 Inhibitor 1L X100L-12X1L-GB
Batteries included?	No
Batteries Required?	No
Item Weight	1.12 kg