How can I use the instrument to check for sufficient combustion or make up air?
While local codes dictate combustion/make up air requirements, a combustion test instrument can be used to help verify sufficient combustion/make up air under actual operating conditions. Simply wait until the readings stabilize, then open a door or window to the outside and observe the readings on the instrument. Should the Oxygen or Carbon Monoxide readings change in response to opening a door or window, something is not right and additional testing will be required to determine the exact nature of the problem.
