Heatiator NNXT4236IL NNXT3933I, NNXT3933IL Listing and Code Approvals, A. Appliance Certification

1 Listing and Code Approvals

A. Appliance Certification

MODELS: NNXT4236I, NNXT4236IL, NNXT3933I, NNXT3933IL

LABORATORY: Underwriters Laboratories, Inc. (UL)

TYPE: Vented Gas Fireplace Heaters

STANDARD: ANSI Z21.88-2002•CSA2.33-M2002•UL307B

This product is listed to ANSI standards for “Vented Gas Fireplace Heaters” and applicable sections of “Gas Burn- ing Heating Appliances for Manufactured Homes and Recreational Vehicles”, and “Gas Fired Appliances for Use at High Altitudes”.

NOTICE: This installation must conform with local codes. In the absence of local codes you must comply with the National Fuel Gas Code, ANSI Z223.1-latest edition in the U.S.A. and the CAN/CGA B149 Installation Codes in Canada.

NOT INTENDED FOR USE AS A PRIMARY HEAT SOURCE.

This appliance is tested and approved as either supplemental room heat or as a decorative appliance. It should not be fac- tored as primary heat in residential heating calculations.

B. Glass Specifications

This appliance is equipped with 5 mm ceramic glass. Re- place glass only with 5 mm ceramic glass. Please contact your dealer for replacement glass.

C. BTU Specifications

Novus	NNXT4236	NNXT3933
Max/Min Input Rate (NG)	31,000/18,500	29,000/16,000
Orifice Size (NG)	#37/.104/2.65 mm	#39/.0995/2.53 mm
Max/Min Input Rate (LP)	30,000/17,000	27,000/15,750
Orifice Size (LP)	#52/.0635/1.62 mm	.061/155 mm

D. High Altitude Installations

NOTICE: If the heating value of the gas has been reduced, these rules do not apply. Check with your local gas utility or authorities having jurisdiction.

When installing above 2000 feet elevation:

•In the USA: Reduce input rate 4% for each 1000 feet above 2000 feet.

•In CANADA: Reduce input rate 10% for elevations between 2000 feet and 4500 feet. Above 4500 feet, consult local gas utility.

Check with your local gas utility to determine proper orifice size.

E. Non-Combustible Materials Specification

Material which will not ignite and burn. Such materials are those consisting entirely of steel, iron, brick, tile, concrete, slate, glass or plasters, or any combination thereof.

Materials that are reported as passing ASTM E 136,

Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750 ºC and UL763 shall be

considered non-combustible materials.

F. Combustible Materials Specification

Materials made of or surfaced with wood, compressed paper, plant fibers, plastics, or other material that can ig- nite and burn, whether flame proofed or not, or plastered or unplastered shall be considered combustible materials.

G. Electrical Codes

NOTICE: This appliance must be electrically wired and grounded in accordance with local codes or, in the absence of local codes, with National Electric Code ANSI/NFPA 70-latest edition or the Canadian Electric

Code CSA C22.1.

•A 120 VAC circuit for this product must be protected with ground-fault circuit-interrupter protection, in compliance with the applicable electrical codes, when it is installed in locations such as in bathrooms or near sinks.

Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12 7