Medio Biológico

“Annual fuel utilization efficiency (AFUE)” means the efficiency descriptor for furnaces and boilers, as determined using the applicable test method in Section 1604(e) and based on the assumption that all: (1) weatherized warm air furnaces or boilers are located out-of doors;

(2) warm air furnaces which are not weatherized are located indoors and all combustion and ventilation air is admitted through grill or ducts from the outdoors and does not communicate with air in the conditioned space;

(3) boilers which are not weatherized are located within the heated space.

“Automatic flue damper” means a device installed in the flue outlet or in the inlet of or upstream of the draft control device of an individual, automatically operated, fossil fuel-fired appliance that is designed to

automatically open the flue outlet during appliance operation and to automatically close the flue outlet when the appliance is in a standby condition.

“Automatic vent damper” means a device intended for installation in the venting system of an individual, automatically operated, fossil fuel-fired appliance either in the outlet or downstream of the appliance draft control device, which is designed to automatically open the venting system when the appliance is in operation and to automatically close off the venting system when the appliance is in a standby or shutdown condition.

“Boiler” means a space heater that is a self-contained appliance for supplying steam or hot water primarily intended for space-heating. “Boiler” does not include hot water supply boilers.

“Central furnace” means a self-contained space heater designed to supply heated air through ducts of more than 10 inches length.

“Combination space-heating and water-heating appliance” means an appliance that is designed to provide both space heating and water heating from a single primary energy source.

“Combined annual efficiency (CAE)” means [(SHF x Effyhs /100) + (WHF x Effyss /100) + (R x NHF x EF)] divided by [SHF + WHF + (R x NHF)] as defined in the applicable test method in Section 1604(e)(3).

“Combustion efficiency of a space heater” means a measure of the percentage of heat from the combustion of gas or oil that is transferred to the space being heated or lost as jacket loss, as determined using the applicable test method in Section 1604(e).

“Combustion efficiency for a commercial packaged boiler” means the efficiency descriptor for packaged boilers, determined using test procedures prescribed under 10 C.F.R. section 431.86 and is equal to 100 percent minus percent flue loss (percent flue loss is based on input fuel energy).

“Commercial packaged boiler” means a type of packaged low pressure boiler that is industrial equipment with a capacity (rated maximum input) of 300,000 Btu per hour (Btu/hr) or more which, to any significant extent, is distributed in commerce:

(1) For heating or space conditioning applications in buildings; or

(2) For service water heating in buildings but does not meet the definition of ‘‘hot water supply boiler’’ in this part.

“Condensing boiler” means a commercial packaged boiler that condenses part of the water vapor in the flue gases, and that includes a means of collecting and draining this condensate from its heat exchanger section.

“Direct vent system” means a system supplied by a manufacturer which provides outdoor air or air from an unheated space (such as an attic or crawl space) directly to a furnace or vented heater for combustion and for draft relief if the unit is equipped with a draft control device.

“Duct furnace” means a space heater designed to be installed within a duct.

“Energy consumption during standby” means the energy consumed by a gas or oil space heater when the main burner is not operating, not including energy consumption related to associated cooling equipment, and reported in watts, based on a conversion factor of 3.412 Btu per watt-hour.

“Fan type gas space heater” means a space heater in which heat is distributed to the surrounding area through the use of an electric fan.

“Floor-mounted unit heater” means a unit heater designed for mounting on the floor rather than suspension mounting.

“Gravity type gas space heater” means a gas space heater in which heat is distributed to the surrounding area as a result of the differences in densities of cooler and warmer air in the surrounding atmosphere.

“High intensity infrared heater” means an infrared gas space heater that has a radiating surface that operates at or above 1,350°F.

“High static unit heater” means a unit heater that has an integral means for the circulation of air against 0.2 inch or greater static pressure.

“Indoor duct furnace” means a duct furnace designed to operate under sheltered conditions.

“Infrared gas space heater” means a gas space heater that directs a substantial amount of its energy output in the form of infrared energy into the area to be heated.

“Low intensity infrared heater” means an infrared gas space heater that has a radiating surface that operates at less than 1,350°F.

“Low static unit heater” means a unit heater that has an integral means for the circulation of air against less than 0.2 inch static pressure.

“Mobile home furnace” means a direct vent furnace that is designed for use only in mobile homes.

“Non-packaged boiler” means a boiler that is not a packaged boiler.

“Outdoor duct furnace” means a duct furnace designed to function normally under varying outdoor weather conditions.

“Outdoor furnace or boiler” means a furnace or boiler normally intended for installation out-of-doors or in an unheated space (such as an attic or crawl space).

“Output” means the rate of useful heat output when operating under steady state conditions.

“Packaged boiler” means a boiler that is shipped complete with heating equipment, mechanical draft

equipment, and automatic controls, usually shipped in one or more sections and does not include a boiler that is custom designed and field constructed. If the boiler is shipped in more than one section, the sections may be produced by more than one manufacturer, and may be originated or shipped at different times and from more than one location.

“Packaged high pressure boiler” means a packaged boiler that is:

(1) A steam boiler designed to operate at a steam pressure higher than 15 psi gauge (psig);

(2) A hot water boiler designed to operate at a water pressure above 160 psig or at a water temperature exceeding 250°F, or both; or

(3) A boiler that is designed to be capable of supplying either steam or hot water, and designed to operate under the conditions in paragraphs (1) and (2) of this definition.

(1) A steam boiler designed to operate at or below a steam pressure of 15 psig;

(2) A hot water boiler designed to operate at or below a water pressure of 160 psig and a temperature of 250°F; or

(3) A boiler that is designed to be capable of supplying either steam or hot water, and designed to operate under the conditions in paragraphs (1) and (2) of this definition.

“Patio heater” means an infrared gas space heater that is designed for warming outdoor areas using radiant heat.

“Portable infrared heater” means a free-standing infrared gas space heater designed with the intent of being moved from one space to another.

“Power venting” means a venting system that uses a separate fan, either integral to the appliance or attached to the vent pipe, products of combustion.

“Premium motor” means a premium motor as defined in NEMA Premium™: Product Scope and Nominal Efficiency Levels (2001).

“Radiant coefficient” means a measure of efficiency of an infrared heater, as determined using the applicable test method in Section 1604(e).

“Radiant tube-type infrared heater” means a low-intensity infrared gas space heater in which combustion takes place within a tube.

“Room heater” means a free-standing non-recessed space heater.

“Space heater” means an appliance that supplies heat to a space for the purpose of providing warmth to objects within the space.

“Standard motor” of a central gas furnace means a motor that is not a premium motor.

“Standby loss” of a boiler means the sum of the gas used by the pilot (converted to watts), the electricity used by controls, and any other energy used while the boiler is not operating.

“Steam boiler” means a boiler that supplies steam.

“Thermal efficiency” of a space heater means a measure of the percentage of heat from the combustion of gas or oil that is transferred to the space being heated, or in the case of a boiler, to the hot water or steam, as determined using the applicable test methods in Section 1604(e). Thermal efficiency of a commercial warm air furnace equals 100 percent minus percent flue loss, as determined using test procedures prescribed under 10 C.F.R. section 431.76.

“Unit heater” means a self-contained, automatically-controlled, vented fan-type gas space heater designed to be installed without ducts, within the heated space.

“Unvented gas space heater” means a gas space heater designed to be used without a vent.

“Unvented oil space heater” means an oil space heater designed to be used without a vent. Note: See Health and Safety Code Section 19881 for restrictions on the sale of unvented gas space heaters and unvented oil

“Vented floor furnace” means a self-contained vented heater suspended from the floor of the space being heated, taking air for combustion from outside this space. The vented floor furnace supplies heated air circulated by gravity or by a fan directly into the space to be heated through openings in the casing. “Vented gas space heater” means a gas space heater designed to be used with a vent.

“Vented home heating equipment” or “vented heater” means a class of home heating equipment, not

including furnaces, designed to furnish warmed air to the living space of a residence, directly from the device, without duct connections (except that boots not to exceed 10 inches beyond the casing may be permitted and includes: vented wall furnace, vented floor furnace, and vented room heater.

“Vented oil space heater” means an oil space heater designed to be used with a vent.

“Vented room heater” means a self-contained, free standing, non-recessed, vented heater for furnishing warmed air to the space in which it is installed. The vented room heater supplies heated air circulated by gravity or by a fan directly into the space to be heated through openings in the casing.

“Vented wall furnace” means a self-contained vented heater complete with grilles or the equivalent, designed for incorporation in, or permanent attachment to, a wall of a residence and furnishing heated air circulated by gravity or by a fan directly into the space to be heated through openings in the casing.

“Wall furnace” means a wall-mounted, self-contained space heater without ducts that exceed 10 inches.

“Water boiler” means a boiler that supplies hot water.