T-H3 Installation Manual
14 Page
-Combuson air supply-
This gas water heater requires an adequate source of clean air for combustion and
ventilation. Without sufficient air, your water heater may not operate properly and
may emit excessive and abnormal amounts of carbon monoxide which may result in
carbon monoxide poisoning or death.
WARNING
• The guidelines in this section apply to installations within the United States. All
U.S. installations must conform to the National Fuel Gas Code, ANSI Z223.1/NFPA
54 (current edition) and local codes.
• Canadian requirements differ from the guidelines in this section. In Canada,
follow the requirements of B149.1 (Natural Gas and Propane Installation Code,
current edition) as well as local and provincial codes. Contact your local code
enforcement agency for direction.
NOTICE
Before installing the water heater, you must determine the amount of air needed to supply this water
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Check for Chemicals:
these corrosive chemicals is not covered by the warranty.
WARNING!
In all cases, ensure that corrosive chemicals are not present at the air intake. Presence of such chemicals
require outside air due to chemicals include:
Beauty salons
Photo processing labs
Indoor pools
Chemical storage areas
Products such as aerosol sprays, detergents, bleaches, cleaning solvents, gasoline, air fresheners, paint and
varnish removers, and refrigerants should not be stored or used near the water heater.
Does your installation space have sufficient combustion air?
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ing appliances (e.g., water heaters, furnaces, clothes dryers) in the same area. Do not include appliances
that are direct vented. Refer to the following example.
Installaon
Installaon Manual