Heating System Dosing & Maintenance: Preventing Corrosion & Scale

The Hidden Threats: Corrosion and Scale in Commercial Heating Systems

Commercial heating systems, particularly those with complex pipework and multiple components, are susceptible to internal damage from corrosion and scale buildup. These issues, often unseen, can significantly reduce system efficiency, lead to costly breakdowns, and shorten the overall lifespan of your valuable heating infrastructure. At Commercial Gas Systems Ltd, we understand these hidden threats and offer specialized dosing and maintenance services to protect your investment.

The Critical Importance of Inhibitor Dosing

Inhibitor dosing involves adding specialized chemical treatments to your heating system's water. These inhibitors work by creating a protective layer on the internal surfaces of pipes, radiators, and boiler components, effectively preventing the formation of rust (corrosion) and the accumulation of hard water scale.[1]

Without proper dosing, the circulating water can react with the metal components, leading to:

• Corrosion: This causes sludge buildup, blockages, and eventually leaks and component failure.
• Scale Buildup: Hard water deposits can accumulate on heat exchange surfaces, reducing the boiler's efficiency and increasing energy consumption. This acts as an insulating layer, forcing the boiler to work harder to achieve desired temperatures.

Regular inhibitor dosing is a proactive measure that ensures your system remains clean, efficient, and free from internal damage, thereby extending its operational life.[1]

Essential Checks: Expansion Vessels and Pressure Relief Valves (PRVs)

Beyond chemical dosing, comprehensive heating system maintenance includes critical checks on key components that regulate system pressure and safety:[1]

1. Expansion Vessels

• Function: Expansion vessels accommodate the expansion of water as it heats up within a closed heating system. Without a functioning expansion vessel, pressure can build up to dangerous levels.
• Maintenance: Our engineers check the pressure within the expansion vessel and recharge it if necessary. They also inspect the vessel for any signs of damage or leaks. A correctly functioning expansion vessel prevents excessive pressure, protecting your boiler and pipework from stress and potential rupture.

2. Pressure Relief Valves (PRVs)

• Function: PRVs are crucial safety devices designed to release excess pressure from the heating system if it exceeds a safe limit. This prevents catastrophic failure due to overpressure.
• Maintenance: During servicing, our engineers will test the PRV to ensure it is not seized and will open correctly if system pressure becomes too high. A faulty PRV can lead to dangerous pressure buildup, risking damage to the entire system.

The Benefits of Proactive Dosing and Maintenance

Investing in professional heating system dosing and maintenance provides numerous benefits for your commercial property:

• Extended System Lifespan: Protecting components from corrosion and scale significantly prolongs the life of your heating system and boiler.[1]
• Improved Energy Efficiency: A clean system transfers heat more effectively, reducing energy consumption and lowering your operational costs.
• Reduced Risk of Breakdowns: Proactive maintenance identifies and addresses potential issues before they escalate into costly and disruptive breakdowns.[2]
• Enhanced Safety: Ensuring components like PRVs and expansion vessels are functioning correctly is vital for the safe operation of your heating system.
• Maintained System Performance: Consistent maintenance ensures your heating system delivers reliable and consistent warmth throughout your commercial premises.

Commercial Gas Systems Ltd provides expert heating system dosing and comprehensive maintenance services, ensuring your system remains efficient, safe, and reliable year after year.[1]