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Sentinel

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A general purpose treatment for total protection against scale and corrosion in all types of indirec..
£13.19
Ex Tax: £10.99
A unique life-long system treatment for the elimination of limescale and boiler noise. Safe to use ..
£17.17
Ex Tax: £14.31
Flushes out flux and installation debris from new indirect central heating systems and those up to ..
£17.17
Ex Tax: £14.31
A ruthlessly efficient way to eliminate the build-up of magnetite sludge X400 is the quick and easy..
£15.58
Ex Tax: £12.98
Sentinel X800 Jetflo Ultimate Cleaner is a heavy duty cleaning formulation designed to remove corros..
£14.38
Ex Tax: £11.98
The Sentinel X100 Test Kit is a simple way to check that a system treated with Sentinel X100 Inhibit..
£4.25
Ex Tax: £3.54
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Heating Controls Online is rated 4.90 stars by Reviews.co.uk based on 2955 merchant reviews

4.90 / 5 Rating
2955 Reviews
Simple to use website and extremely fast delivery
Very happy with clear catalogue and prompt delivery.
I use HeatingControls Online few times to buy a spare parts for my UFH system. Purchase is quick and simple. They keep you updated with your order. Fast delivery. Will use them in the future.