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You are here: Home / Permitting / Air Permits / PermitByRule / Historical Rules / old106list / 397 / Outdated Exemption List, Subchapter G - March 14, 1997

Outdated Exemption List, Subchapter G - March 14, 1997

Synopsis of specific exemptions from air permitting that were in effect on this date.

30 TAC 106 - Subchapter G Combustion

106.181 Small Boilers, Heaters, and Other Combustion Devices
106.182 Ceramic Kilns (Previously SE33)

106.181 Small Boilers, Heaters, and Other Combustion Devices

(a) Small boilers, heaters, drying or curing ovens, furnaces, or other combustion units, but not including stationary internal combustion engines or turbines, are exempt provided that all the conditions of this section are met.

(b) Combustion units may burn used oil as a fuel as long as the used oil has not been mixed with hazardous waste and the combustion unit meets the following conditions:

(1) the combustion unit or combination of combustion units at the same account have a maximum capacity of 1.0 million Btu per hour (MMBtu/hr) and each individual combustion unit is not greater than 0.5 MMBtu/hr;

(2) the combustion gases from the combustion unit(s) are vented to the ambient air in accordance with the following requirements:

(A) through an unobstructed vent; or

(B) through a vertical vent with a cap; and

(i) a flat roof, through a minimum of a three-foot stack; or

(ii) a sloped roof, through a stack that is at least three feet higher than the highest point on the roof or three feet higher than a point extending ten feet horizontally from the roof; and

(3) the combustion unit(s) burns only used oil the owner or operator generates on-site or used oil received from household do-it-yourself used oil generators.

106.182 Ceramic Kilns (Previously SE 33)

Kilns used for firing ceramic ware, heated exclusively by natural gas, liquid petroleum gas, electricity, or any combination thereof are exempt where the conditions of this section are met:

(1) the total heat input is ten million British thermal units per hour or less; and

(2) there are no emissions of lead, beryllium, or fluorides, and emissions of sulfur dioxide and particulate matter from both the material being fired and fuel burned do not exceed 25 tons per year of either air contaminant.

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