Boiler system diagnosis
Existing boiler systems are reviewed as complete heating systems, not just burners, controls, or replacement candidates.
Hydronic heating
Hydronic Heating and Boiler Service in Roanoke, VA
OCD HVAC helps with hydronic heating, boiler, radiator, and hot water heating problems in Roanoke-area homes. The work is technical, diagnostic, and focused on understanding circulation, controls, piping, air, pressure, and heat delivery.
On-Time ✶ Competent ✶ Detailed
Old systems need real diagnosis
Old radiator and boiler systems need diagnosis, not guesswork.
Many Roanoke homes still have older hydronic heating systems that can work well when they are understood correctly. Comfort problems are often caused by circulation issues, trapped air, pressure problems, zoning, valve problems, near-boiler piping, undersized radiation, or changes made over decades.
OCD HVAC reviews the system as a whole: piping, circulation, air control, pressure, zoning, radiation, and controls. The goal is to understand why the heat is not reaching the rooms before recommending repairs or equipment changes.
Radiators and baseboards
Older radiation can be comfortable and even when flow, venting, temperature, and balancing are understood.
Circulator pumps and flow
Pump sizing, direction, speed, zoning, and control behavior can all affect heat delivery.
Pressure and expansion tanks
Expansion tank condition and system pressure can cause relief valve discharge, noise, air problems, and unstable operation.
Air, noise, and venting
Trapped air can cause noisy piping, cold radiators, corrosion concerns, and uneven heat.
Near-boiler piping layout
Piping layout, purge points, valves, closely spaced tees, and workmanship matter when troubleshooting hydronic problems.
Zones, valves, and thermostats
Zone valves, circulators, thermostats, wiring, and flow paths need to match how the home is actually divided.
Cold rooms and slow recovery
Cold radiators, slow recovery, noisy piping, and uneven heat should be traced before major equipment decisions are made.
HVAC Done Right
Need help with boiler or radiator heat?
Send the symptoms, equipment type, age if known, and which rooms or zones are not heating correctly. Older hydronic systems benefit from careful diagnosis before repair or replacement decisions.