scope:

This standard applies to newly produced vented gas fireplaces (See Part IV, Definitions), hereinafter referred to as appliances, constructed entirely of new, unused parts and materials, and having input ratings up to and including 400,000 Btu/hr (117 228 W). These appliances are:

a. For use with natural gas;

b. For use with propane;

c. For direct vent gas appliances for manufactured home (USA only) or mobile home OEM installation or aftermarket installation convertible for use with natural gas and liquified petroleum (propane) gases when provision is made for the simple conversion from one gas to the other (see 1.2.21 and 1.2.22);

The construction of vented gas fireplaces for use with the above mentioned gases is covered under Part I, Construction.

The performance of vented gas fireplaces for use with the above mentioned gases is covered under Part II, Performance.

Exhibit D.1, Automatic Intermittent Pilot Ignition Systems for Field Installation, includes provisions for newly produced (optional) automatic intermittent pilot ignition systems (See Part IV, Definitions), constructed entirely of new, unused parts and materials, to be adapted in the field to an appliance equipped with an existing continuous pilot burner and which has been examined and tested for compliance with this standard when installed on the appliance.

A value for measurement given in this standard is followed by an equivalent value in other units, the first stated value is to be regarded as the specification.

An appliance equipped with safety screens and guards to protect clothing or flammable materials from contacting parts of the appliance which could easily cause ignition (see 2.28, Evaluation of Clothing Ignition Potential) shall have such equipment mechanically attached to the appliance by the manufacturer.

Exposed edges which may come in contact with the operator's hand during normal adjustment or usage shall be smooth.

Joints of surfaces enclosing combustion products shall not depend primarily on cement for tightness and shall be of durable and rigid construction, such as welded, brazed, machined and bolted, tongue-and-groove, slip, lap, or screw joint.