BM1 Central Heating System Inhibitor

The BM1 is a high performance formula used in over a million UK properties. It maintains heating efficiency by preventing scale formulation and metal corrosion, without any detrimental effects upon plastic or rubber plumbing components such as seals.

The Borate/Phosphate free BM1 formula provides outstanding heating system protection with none of the adverse effects associated with traditional protection products.

  • Outstanding, long lasting protection
  • Maintains heating efficiency
  • Compatible with all leading boiler types (including aluminium heat exchangers)
  • Prevents radiator cold spots and boiler damage
  • Phosphate and Borate free formula
  • Nitrate/EDTA free formula – prevents metal corrosion
  • Build Cert approved (complies with Part L of the Building Regulations)
  • Ideal for sealed or vented systems
  • For use in accordance with BS7593:2006
  • A single 500ml bottle treats a 100 litre system
  • Non-toxic, environmentally friendly
  • Use in conjunction with a Boilermag magnetic filter

BM1 Level Indicator Test Strip

The BM1 dip test strips are a simple, cost effective check for levels of BM1 Inhibitor in the system.

By simply dip testing a BM1 test strip in a sample of system water the engineer can check if the Inhibitor concentration is optimised, at both pre and post dosage stages.

During the test, the strip indicates a colour coded reaction. Simply match the colour to the BM1 level indicator chart which will indicate if more BM1 should be applied

BM1 Level Indicator Chart

Bm1 test strip bottle