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P. All mechenical work must be inspected and approved by the city's local mechanicaUfieating inspector and/or the building inspecpon depsrtment or by a person knowledgeable in mechanicaUheating systeros and installadons that is approved by the City/County/State. 15.2 HaTardous and Substandard Conditions A. Harardous oonditions must include sny condition thnt threatens the health and or safety of the occupants. Substaadard conditiona include any condition that threatens, defeate or wili lead to the lack of functional viability of a single feature of a home. These conditions must include but not be limited to: I. The lack of a steady and dependable source of heat which will supply heat w all living areas either directly or indirectly and be able to maintain this heat at ]east 70 degrees. F. in all conditions; 2. Open flarne gas or propane heaters which exhaust fumes to the interior of the living area and are not equippod with an Oxygen Depletion System (ODS). If an open flame type heater equipped witb ODS is used a carbon monoxide datector must be installed; 3- L,ealcing, damaged or inadequate heat exchange units or venting systems which create the danger of CO build up; 4. Leaking, corroded or damaged gas supply lines; 5. Texas-T type shut valves; 6. T6e lack of a functioning supply shut off valve for each gas or propane device; 7. The lack of a functional pilot or electric start for each gas or propane device; 8. Ambient heat which is not supplied from aa adjoining room; 9. Free standing electric heaters used for sole source of beat 16.0 Water Aeaters 16.1 Minirnum Water Heater Standards A. All water heaters will have at least thirty gallons storage capacity. Will be able to eupply a continuous flow of hot water of at least 102 degrees F, and will be prnperly installed with both gas and or electric shut-off valvts as well as cold water supply shut-off valves. B. Each unit should be equipped with a functioning prossure r+elease valve (TPL) which must rolease presaure at 150 P.S.I. and/or 210 degrees F. Water released mast be exhausted to the exterior of the building. C. Each water heater must be enclosed (except whcre otherwise permitted by the SBCCI) in e sealed closet designed for this purpose with combustion air drawn from outside the living area. Any gas water heater installed in garage sreas will be lceated at least 18" above the floor in order W prevent combustion of fuel vapors. 16.2 Hazardous and Substandard Conditions A. Hazardous eondirions must include any condition that threatens the health and or safery of the TDHCA- Hmnc lnvestrnent PmAnerships Program Pago 20 of 23 Appendix A-03 - TMC Stendards 255 Revised 01/012004