Across
- 6. Connects two pipes together
- 7. Fire protection system piping
- 8. Process of giving up latent heat to liquefy a vapor.
- 12. Support for holding pipes to a structure.
- 13. Debris from welding or power drilling
- 16. A device with a vertical inner firebox that produces an efficient, hot, clean burn
- 17. Device used to regulate and circulate air as part of an HVAC system (short, but fits context of air movement
- 19. Rigid plastic used for pipes
- 20. Device used to control or shut off flow.
- 23. Used to join pipe of different size diameters
- 25. Common material for plumbing
- 26. Refrigeration cycle that pumps heat out of chilled water systems into the condenser water system
- 27. A device that transfers heat from a colder area to a hotter area by using mechanical energy.
- 28. Valve that empties the boiler for cleaning/inspection.
Down
- 1. A device or substance for absorbing excessive or unwanted heat
- 2. HVAC system that works by heating air in a gas, oil, or electric furnace and distributing it by a fan through ductwork
- 3. Safety device in boilers.
- 4. An appliance fired by gas, oil, or wood in which air or water is heated... circulated throughout a building
- 5. A liquid able to vaporize at a low temperature, absorbing heat... changing state from a liquid to a vapor or gas.
- 9. Part of a compression fitting
- 10. Protects your head
- 11. Passive fire protection products used in HVAC ducts to prevent the spread of fire inside the ductwork through fire-resistance rated walls and floors
- 14. Short lengths threaded at both ends
- 15. To solder or weld
- 18. To remove carbon build-up on pistons and combustion chambers
- 21. Heat treatment in which metals are heated and then cooled very slowly to decrease hardness.
- 22. Entry level tradesman
- 24. Passage in a hvac system