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How to Use a Radiator Dosing Tool Funnel (Step-by-Step)

Introduction

Using a radiator dosing tool is the easiest way to add chemicals to your heating system. Here’s exactly how to do it properly.


Step-by-Step Guide

1. Turn Off Heating

Avoid burns and pressure issues.

2. Open Radiator Valve

Remove bleed plug.

3. Attach Funnel Tool

Ensure a tight seal.

4. Pour Chemical Slowly

Avoid overflow.

5. Let It Drain

Gravity feeds system.

6. Remove Tool

Replace valve securely.

7. Bleed Radiator

Release trapped air.


Pro Tips

  • Use a towel under the radiator
  • Don’t rush the pour
  • Always check system pressure after

Common Mistakes

  • Overfilling
  • Not bleeding air
  • Using wrong radiator

Best dosing tools guide


About the Author

Huseyin Aras is a Bathroom Heating & Product Sourcing Specialist at Coventry Towel Radiator with over 18 years of experience in towel radiators, bathroom heating systems, supplier sourcing, and modern home comfort solutions.

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