To address slight leaks at central heating joints, first shut down the system to prevent energy waste or safety hazards. Inspect the affected area using a flashlight and thermal imaging device to pinpoint the exact source. Apply high-temperature-resistant sealant or adjustable pipe clamps to secure loose joints. For persistent leaks, replace damaged sections with corrosion-resistant materials like stainless steel or copper. Always test the system thoroughly after repairs and monitor performance for 24–48 hours.

Leakage at central heating joints poses significant energy efficiency and safety risks. The U.S. Department of Energy (DOE) reports that 10–15% of heating energy is lost due to poor insulation or faulty connections, increasing annual energy costs by $200–$300 for households. A 2021 study by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) found that 30% of residential heating system failures stem from undetected leaks, often leading to carbon monoxide (CO) emissions. The Environmental Protection Agency (EPA) estimates that CO poisoning from faulty heating systems accounts for 400–500 deaths annually in the U.S., emphasizing the need for prompt, professional repairs. Proactive maintenance reduces long-term expenses and aligns with DOE guidelines for improving building envelope efficiency by 20–30%.