Braun Flow Meters suitable with heating oil, diesel & biodiesel up to B35. Used for measuring Heating Oil consumption. If sited outside a weatherproof cover is needed. Boiler capacity 7 kW ‑ 400 kW. Pressure loss 0.05 ‑ 0.2 bar. This meter does not affect or impair the burner. The only maintenance required is to clean the dirt trap regularly.