Water Hardness in Corby and Its Effect on Boilers
Corby and the wider Northamptonshire area have moderately hard water (150–250 mg/L calcium carbonate). This level of hardness can lead to limescale build-up in your boiler and heating system over time.
What Limescale Does to Your Boiler
Limescale coats the heat exchanger, forcing the boiler to work harder to heat water. This reduces efficiency, increases energy bills, and can cause the characteristic 'kettling' noise.
How to Protect Your Boiler
- Fit a magnetic filter (we include this on all installations)
- Add a scale reducer or inhibitor to the system
- Consider a whole-house water softener if you're in a very hard water area
- Annual servicing catches scale build-up early
Our Recommendation
For Corby homes, we recommend a Fernox TF1 or Magna Clean magnetic filter on all boiler installations, along with Fernox F1 central heating inhibitor to protect against both sludge and scale.
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