Quick Answer
Regular maintenance of hydronic heating systems involves checking for air leaks, inspecting the system for corrosion, and ensuring proper water chemistry, which includes testing pH levels and hardness.
System Inspection and Cleaning
Inspect the system annually, paying particular attention to areas prone to corrosion, such as the boiler, pumps, and radiators. Clean or replace components as needed, and ensure all connections are secure. For wood-fired hydronic heating systems, inspect the outdoor wood boiler and chimney for damage or blockages.
Water Chemistry Management
Test the system’s water pH levels at least quarterly, aiming for a range of 6.5 to 7.5. Consider treating the system with a water conditioner to prevent scaling and corrosion. Monitor the system’s hardness levels, aiming to keep them below 10 grains per gallon to prevent scaling issues.
Pump Maintenance and Pressure Testing
Check the system’s pumps every 6 months, ensuring they are operating within the manufacturer’s recommended pressure range. Perform a pressure test on the system annually to identify any leaks or potential issues. Consider replacing the system’s primary and secondary pumps every 5 to 7 years, or as recommended by the manufacturer.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.