Hydronic Heating Components

Clues in this puzzle

Across

• Hydraulic barrier ensnaring vapor while waving condensate through (4)
• Conduit of warmth, often copper-bottomed in plumbing debates (4)
• Vertical spine uplifting warm fluid across building storeys (5)
• Elastomeric guardian against unintended dampness at every flange (4)
• Draft choke regulating chimney exhaust draw on atmospheric firing (6)
• Vessel harboring thermal reserves or handling volume's stretch (4)
• In-line wet-rotor machine defying sluggish gravity in modern hydronics (10)
• Shaft transmitting rotation from handle down into the flow (4)
• Buoyant pilot lifting needles to purge trapped bubbles automatically (5)
• Dial calibrated to expose hidden stress and temperature levels (5)
• Channel delivering warm liquid across complex underfloor arrays (6)

Down

• Violent high-velocity scouring to evict stubborn entrapped atmosphere (5)
• Inlet or outlet doorway flanking fluid passages (4)
• Bottom egress invoked when seasonal maintenance flushes the system (5)
• Pressure metric measured in feet rather than minds (4)
• Heart of the closed circuit, yet never skips a beat of circulation (4)
• Pressure-reducing sentry steadily stepping street surge down to safe bounds (9)
• Microbubble catcher dislodging dormant gases from circulating flow (9)
• Wall-mounted arbiter calling for heat when living chills mount (10)
• Electro-thermal motor translating thermostat signals into valve stroke (8)
• Spring-loaded escape valve popping off when pressures breach bounds (6)
• Cast-iron or pressed-steel emitter commanding window bays with steady convection (8)
• Climatic partition commanded by an isolated thermostat (4)

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