Section E; Chimney Installation; Section E: Chimney Installation - Toyotomi Oil Miser OM-148 Installation Manual

Instantaneous oil-fired water heater

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SECTION E:

This unit is a sealed combustion system and as an installation option it may be connected

directly to a chimney. Using this option, room air is used for combustion and the exhaust gases

are vented into the chimney to the outside.

IMPORTANT:

This appliance should be installed by a licensed, authorized person(s) due to necessity of

making electrical, water and fuel connections. Check local codes and ordinances and/or the latest

edition of the National Fire Protection Association Standard for the Installation of Oil-Burning

Equipment. NFPA-31.

A Barometric Draft Regulator must be used in the exhaust pipe to stabilize flue draft. It is required

that a UL-listed (Underwriters Laboratories) damper be used. The Barometric Draft Regulator must

be installed in accordance with NFPA-31.

Installation in an unconfined space in buildings of conventional frame, brick or stone construction,

infiltration normally is adequate to provide air for combustion and ventilation.

For confined spaces, openings for air intake and venting must be provided. (See Fig.1.)

Check local codes and ordinances and/or NFPA-31 Code for specific details.

It is recommended that the OM-148 hot water heater be connected to an independent chimney flue.

CAUTION:

In case another appliance is connected to the same chimney flue (2 or more units), it may be necessary

to comply with state and local codes. Check with your local dealer or licensed installer.

Connecting the OM-148 hot water heater with two or more appliances using the same chimney flue may

affect the performance of the hot water heater. Check with your dealer for other installation options.

Total length of the exhaust pipe and the chimney liner must be no greater than 25 ft. Maintain the shortest

piping possible by selecting a location as close as posssible to the chimney.

NOTE:

To prevent against exhaust leaks, make sure all connections are properly fitted and seal connection with

aluminum tape or heat resistant sealing material.

A 5-inch or 4-inch diameter exhaust pipe is used for a chimney installation. To prevent injury due to the

hot surface of the exhaust pipe, be sure to wrap the exhaust pipe with a heat insulator material.

For a chimney installation, use accessory (option) parts.

Chimney Installation Adapte Kit

(Part #20476430 - Dia.5" or Part #20478415 - Dia.4")

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