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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


Scalemaster

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Scalemaster SM1 counteracts corrosion and is essential for protecting hot water central heating sys..
£7.48
Ex Tax: £6.23
Scalemaster SM2 restores and maintains heat exchange efficiency in hard water areas and also stops ‘..
£8.40
Ex Tax: £7.00
Scalemaster SM3 for pre-commissioning NEW central heating systems by flushing out and purging flux g..
£7.20
Ex Tax: £6.00
Scalemaster SM4 frees EXISTING systems from black oxide corrosion products restoring circulation and..
£9.60
Ex Tax: £8.00
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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.