To repair a leaking water inlet valve for an indoor radiant heating system, follow these steps: First, shut off the system’s power and water supply to ensure safety. Locate the valve, often found near the boiler or heat exchanger, and remove any access panels. Inspect the valve for corrosion, wear, or misalignment. If the seat or gasket is damaged, replace it with a compatible part. For mechanical failure, install a new valve, ensuring it’s the correct size and型号. Reassemble the system, refill the loop with water, and test for leaks by running the system and monitoring pressure. If the leak persists, consult a professional.

Leaking inlet valves are critical components in radiant heating systems, as they regulate water flow to radiators or floors. A 2021 study by the U.S. Department of Energy found that undetected leaks can cause 15–30% energy loss in hydronic systems, increasing utility costs. Corroded or faulty valves account for 20% of heating system failures annually, per ASHRAE data, often due to mineral buildup or thermal stress. Leaks also risk water damage to floors and structural elements, costing homeowners an average of $2,500 in repairs, according to the National Association of Home Inspectors. Proactive replacement prevents inefficiency, extends equipment lifespan, and avoids costly damage. Regular maintenance, including annual valve inspections, reduces failure rates by 40%, as noted in HVAC Journal research. Ensuring proper installation and alignment minimizes pressure drops, maintaining system performance and energy efficiency.