Central Heating Cleanser / Descaler & Inhibitor

By Calmag Product code: 45091 Pack size: Each

Product Details

3 in 1 system protector. Dissolves contaminants to a minute size and floats in the system. Provides long term protection. Easy to use and add when cleaning is not appropriate.

Technical Specification
Brand Calmag
Manufacturer ID DIY-TS-45091
Safety Data Sheet click here
Type Inhibitor
Volume (L) 1
Volume (ml) 1000
Container Type Liquid
Delivery details

DELIVERY OPTIONS (UK mainland only)

Next Day Delivery – £5.00 or FREE for orders over £25

  • Order before 7pm Monday to Thursday for next business day delivery
  • Order Friday to Sunday before 5pm for Monday delivery
  • Orders placed after Sunday at 5pm will be delivered the following Tuesday

Pre-12pm Delivery – £10.00 or £5.00 for orders over £25, to arrive before 12pm on the scheduled days above

Saturday Delivery – £10.00 or £5.00 for orders over £25 & FREE for orders over £75 (order by 6pm Friday)

Sunday delivery – £10.00 or £5.00 for orders over £25 & FREE for orders over £75 (order by 4pm Saturday)

Times may vary for items being delivered directly from the supplier. For more information, please visit our delivery information page below.

Items over 30kg can only be delivered from Monday to Friday. If ordered before 6pm, please allow up to two business days for delivery. Orders placed after 6pm Thursday will be delivered after the weekend.

More about Delivery
Click & Collect details

Collection Details

Our opening times are 7am-8pm Monday-Friday, 7am-7pm Saturday and 9-4pm Sunday. Please check your local branch is open on the branch locator page, before you visit.

Once you have placed your order online, we’ll have it ready for you at the branch you have selected in as little as 5 minutes. We will hold your order for 14 days, after which we will automatically generate a refund to the payment type you used to place the order.

Don’t forget your mobile number – Make sure your mobile number is added so that we can text you when your order is ready to collect. Please wait for your text or email before coming to collect your items.

If an item is eligible for Next Business Day Collection in branch, the order must be placed by 7pm Monday to Thursday for collection the next day. Orders placed after 7pm on Thursday, and up to 5pm on Sunday, will be available for collection on Monday. For larger items over 30kg, please allow two business days.

Central Heating Cleanser / Descaler & Inhibitor is rated 4.9 out of 5 by 104.
Rated 5 out of 5 by from Radiator Cleaner and Inhibitor This was the tirst time I had ever taken a radiator apart. I understood that a CH leak I was to fix would benefit from a clean and addition of a dose of this first and actually I have had no more loop refilling since I put this in - odd but true. Tricky to get in as all but one rad is old with very small air bleed screws on the rear only. Delighted with the result though.
Date published: 2022-04-29
Rated 5 out of 5 by from Boiler cleaner Works well in my old boiler
Date published: 2022-03-30
Rated 5 out of 5 by from Great product at a reasonable price This is the first time I have used Calmag, to which I am very impressed. My Potterton CH boiler is over twenty years old and was becoming a little noisy due to kettling, this is down to a build up of limescale in the heat exchanger. After introducing this in to the system the boiler has quitened down significantly with the radiators feeleing hotter. The thing I like about it, is that it is both a cleaner/descaler and inhibitor in one. No need to drain the system and treat with another product. I will be using this in the future.
Date published: 2022-03-10
Rated 4 out of 5 by from First time used this product So far seems to be ok, system sounds quiet. Will see how it does at next service
Date published: 2022-03-05
Rated 4 out of 5 by from C H cleaner Seems to have helped, radiators warm up quicker and central heating system is quieter.
Date published: 2021-12-21
Rated 5 out of 5 by from Heating Cleanser Just what the doctor ordered
Date published: 2021-12-16
Rated 5 out of 5 by from Central Heating Cleanser / Descaler & Inhibitor. Central Heating Cleanser / Descaler & Inhibitor, works well, keeps system running smoothly. Great price as one litre is enough for most heating systems.
Date published: 2021-12-16
Rated 5 out of 5 by from This product is amazing. This product is amazing. I put it in the bathroom towel rail radiator and it circulated round the central heating system quickly. The heat exchanger in the boiler was said to be furred up but it looks like this has cleared it. A wonderful outcome and so cheap too!!
Date published: 2021-12-04
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