Cleanout

Related terms

• Combustion Air

  Outside air a fuel-burning appliance needs to burn safely. Tightening a house without providing it can cause backdrafting and CO risk.

• Circuit Breaker

  An automatic switch that interrupts a circuit on overload or short, resettable unlike a fuse. The modern overcurrent device.

• Combustion Air Code

  Requirements ensuring fuel appliances get enough air in confined spaces (e.g., a furnace closet). Tightening the envelope can trigger this.

• Central Air Conditioner

  A split system with an outdoor condenser and indoor coil that cools the whole house through the existing ductwork.

• Combustion Venting (Water Heater)

  Atmospheric, power-vent, or direct-vent options for gas water heaters. Switching types during a remodel affects venting and combustion-ai…

• Cast Iron Drain

  Older quiet but corrodible drain piping. Deteriorated cast iron under slabs/in stacks is a common reason for invasive plumbing work.

• Condensate Drain

  The line removing water the AC coil pulls from the air. Clogs cause overflow and water damage; a safety float switch is recommended.

• Carbon Monoxide (CO) Risk

  Colorless toxic gas from incomplete combustion. Cracked exchangers, backdrafting, and bad venting cause it — driving CO-alarm and venting…