| ABOUT | CATEGORIES | Worlds of David Darling | CONTACT |
 |
unvented heater
A combustion heating appliance that vents the combustion by-products directly into the heated space. The latest models have oxygen-sensors that shut off the unit when the oxygen level in the room falls below a safe level.
Related category
• HEATING
Also on this site:
Encyclopedia of Science
Transport Concepts & Designs (partner site)