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Express delivery for Thursday Available Until 4pm Tomorrow
UK Mainland Only,
3pm cut-off for Highlands and Islands


 

 

 

 

Express delivery for Thursday Available Until 4pm Tomorrow
UK Mainland Only,
3pm cut-off for Highlands and Islands


Fernox

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Ideal for seated systems!   Central Heating Protector for mixed-metal domestic systems..
£21.56
Ex Tax: £17.97
Ideal for seated systems!   Reduces boiler noise Improves heat transfer efficiency ..
£27.95
Ex Tax: £23.29
Ideal for seated systems!   Neutral universal cleanser for pre-commissioning new syste..
£18.61
Ex Tax: £15.51
Ideal for seated systems!   Ideal for reducing pressure loss from sealed systems See..
£21.29
Ex Tax: £17.74
Hydrocyclonic and magnetic in-line filter Unique action, removes magneti..
From £89.56
Ex Tax: £74.63
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Heating Controls Online is rated 4.90 stars by Reviews.co.uk based on 2104 merchant reviews

4.90 / 5 Rating
2104 Reviews
The Siemons central heating and hot water controler was a direct replacemnt for an old unit,it arrived quickly and did what it said on the tin a direct replacement,that took 1/2 an hour to change. great job 1
Prompt response to order and speedy delivery.
Easy to place order and very good delivery arriving on stated day.