City Of Rowlett TX Water heater installation requirements
August 13, 2009
Water Heater Requirements - City of Rowlett, TX
Effective September 2007, the Texas State Legislature enacted into the Plumbing License Law additional wording to specifically include water heaters in their list of plumbing fixtures, required by law, to have a plumbing permit issued prior to installation. In addition, the law provides that such installations be done according to current codes by a Rowlett TX licensed water heater technician and inspected by a licensed plumbing inspector.
Rowlett Texas Water Heater Installation Requirements:
A permit must be obtained for a water heater installation. An inspection must be made on all water heater installations. Approximate times can be scheduled for the inspection. The homeowner or plumber must contact the Building Inspections Department to set up the Inspection. An adult must be present to complete the inspection.
T & P valve must be installed and working properly. It must terminate outside, turned down between 6” and 24” of the ground. A shut off valve is required on the cold water side of the heater. Water heaters located in garages shall be elevated 18” above the ground floor. Water heaters located in the attic or inside the house shall be located in an approved drain pan. The pan shall be drained by an indirect waster pipe and have a minimum diameter of ¾”. The pan drain shall terminate outside between 6” and 24” above ground. If pipe cannot drain to the outside, WAGS valve recommended but not required.
Call the Building Inspection Department regarding other requirements, such as combustion air, venting, attic access, ect.
Rowlett TX Building Inspection 972-412-6125
NEW!! Due to new manufacterer specifications, most gas water heaters are required to have a sediment trap installed on the gas line to the water heater.
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City of Sachse TX Water heater installation requirements
July 29, 2009
Effective September 2007, the Texas State Legislature enacted into the Plumbing License Law additional wording to specifically include water heaters in their list of plumbing fixtures, required by law, to have a plumbing permit issued prior to installation. In addition, the law provides that such installations be done according to current codes by a Sachse TX licensed master plumber and inspected by a licensed plumbing inspector.
The City of Sachse Texas follows the 2003 International Plumbing Code.
The T & P line must be brought to up to current code requirements.
Water Heaters installed in the garage: A pan and drain line is required ONLY if leakage from the water heater will cause damage to the interier of the home.
Water heaters must be installed according to the manufacturer’s installation requirements. Due to recent changes in the manufacturer’s specifications, most gas water heaters require a gas sediment trap on the gas line to the water heater.
For more information on City Requirements please contact the City of Sachse Building Inspections at (972) 675-1633.
For more information on water heaters and water heater pricing in Sachse TX please visit our website.
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Lewisville TX Water heater requirments Updated
May 6, 2009
City of Lewisville TX Water Heater Installation Requirements
By Harvey West Plumbing / Water Heaters For Less.Com (972) 509-0224
The City of Lewisville TX follows the 2006 International Plumbing Code with the following Admendments:
Section 502.3; change to read as follows:
502.3 Water heaters installed in attics. Attics containing a water heater shall be provided . . . {bulk of paragraph unchanged} . . . side of the water heater. The clear access opening dimensions shall be a minimum of 20 inches by 30 inches (508 mm by 762 mm), or larger where such dimensions are not large enough to allow removal of the water heater.
Add Section 502.5 to read as follows:
502.5 Water heaters above ground or floor. When the attic, roof, mezzanine or platform in which a water heater is installed is more than eight (8) feet (2438 mm) above the ground or floor level, it shall be made accessible by a stairway or permanent ladder fastened to the building.
502.5.1 Whenever the mezzanine or platform is not adequately lighted or access to an outlet is not obtainable from the main level, lighting and a receptacle outlet shall be provided in accordance with Section 502.3.1
504.6 Requirements for discharge piping. The discharge piping serving a pressure relief valve, temperature relief valve or combination thereof shall:
1. Not be directly connected to the drainage system.
2. Discharge through an air gap.
3. Not be smaller than the diameter of the outlet of the valve served and shall discharge full size to the air gap.
4. Serve a single relief device and shall not connect to piping serving any other relief device or equipment.
Exception: Multiple relief devices may be installed to a single T & P discharge piping system when approved by the administrative authority and permitted by the manufactures installation instructions and installed with those instruction..
5. Discharge to an indirect waste receptor or to the outdoors. Where discharging to the outdoors in areas subject to freezing, discharge piping shall be first piped to an indirect waste receptor through an air gap located in a conditioned area.
6. Discharge in a manner that does not cause personal injury or structural damage.
7. Discharge to a termination point that is readily observable by the building occupants.
8. Not be trapped.
9. Be installed so as to flow by gravity.
10. Not terminate less than 6 inches or more than 24 inches (152 mm) above grade nor more than 6 inches above the waste receptor.
11. Not have a threaded connection at the end of such piping.
12. Not have valves or tee fittings.
13. Be constructed of those materials listed in Section 605.4 or materials tested, rated and approved for such use in accordance with ASME A112.4.1.
624.1.1 Installation requirements. The requirements for water heaters relative to access, sizing, relief valves, drain pans and scald protection shall be in accordance with the International Plumbing Code.
The city of Lewisville TX does not require a water heater pan if the water heater is located in the garage. If the water heater is located on the interior of the home a water heater pan is required. If the existing water heater does not have a drain line run to the outside of the home then, a wags valve is required.
NEW!! Due to recent changes in manufacturer’s specifications, most gas water heaters require a sediment trap on gas line to the water heater.
2006 International Plumbing Code (Chapter 5) - Water Heaters
Section P2801- General
P2801.1 Required. Each dwelling shall have an approved automatic water heater or other type of domestic water-heating system sufficient to supply hot water to plumbing fixtures and appliances intended for bathing, washing or culinary purposes. Storage tanks shall be constructed of noncorrosive metal or shall be lined with noncorrosive material.
P2081.2 Installation. Water heaters shall be installed in accordance with this chapter and chapters 20 and 24.
P2081.3 Location. Water heaters and storage tanks shall be located and connected to provide access for observation, maintenance, servicing and replacement.
P2801.4 Prohibited locations. Water heaters shall be located in accordance with Chapter 20.
P2801.5 Required pan. Where water heaters or hot water storage tanks are installed in locations where leakage of the tanks or connections will cause damage, the tank or water heater shall be installed in a galvanized steel pan having a minimum thichness of 24 gage (0.016 inch) (.04 mm) or other pans for such use. Listed pans shall comply with CSA LC3.
P2801.5.1 Pan size and drain. The pan shall be not less than 1 ½ inches (38 mm) deep and shall be of sufficient size and shape to receive all dripping or condensate from the tank or water heater. The pan shall be drained by an indirect waste pipe having a minimum diameter of ¾ inch (19 mm). Piping for safety pan drains shall be of those materials listed in Table P2904.5.
P2801.5.2 Pan drain termination. The pan drain shall extend full-size and terminate over a suitably located indirect waster receptor or shall extend to the exterior of the building and terminate not less than 6 inches (152 mm) and not more than 24 inches (610 mm) above the adjacent ground surface.
P2801.6 Water heaters installed in garages. Water heaters having an ignition source shall be elevated such that the source of ignition is not less than 18 inches (457 mm) above the garage floor.
P2801.7 Water heater seismic bracing. In Seismic Design Categories Design Categories D0, D1 and D2 and townhouses in Seismic Design Category C, water heaters shall be anchored or strapped in the upper one-third and in the lower one-third of the appliance to resist a horizontal force equal to one-third of the appliance to resist a horizontal force equal to one-third of the appliance to resist a horizontal force equal to one-third of the operating weight of the water heater, acting in any horizontal direction, or in accordance with the appliance manufacturer’s recommendations.
Section P2802 Water Heaters Used for Space Heating
P2802.1 Protection of potable water. Piping and components connected to a water heater for space heating applications shall be suitable for use with potable water in accordance with Chapter 29. Water heaters that will be used to supply potable water shall not be connected to a heating system or components previously used with nonpotable-water heating appliances. Chemicals for boiler treatment shall not be introduced into the water heater.
P2802.2 Temperature control. Where a combination water heater-space heating system requires water for space heating at temperatures exceeding 140°F (60°C), a master thermostatic mixing valve complying with ASSE 1017 shall be installed to temper the water to a temperature of 140°F (60°C), a master thermostatic mixing valve complying with ASSE 1017 shall be installed to temper the water to a temperature of 140°F (60°C) or less for domestic uses.
Section P2803 – Relief Valves
P2803.1 Relief valves required. Appliances and equipment used for heating water or storing hot water shall be protected by:
1. A separate pressure-relief valve and a separate temperature-relief valve; or
2. A combination pressure- and temperature-relief valve.
P2803.2 Rating. Relief valves shall have a minimum rated capacity for the equipment served and shall conform to ANSI Z 21.22.
P2803.3 Pressure relief valves. Pressure-relief valves shall have a relief rating adequate to meet the pressure conditions for the appliances or equipment protected. In tanks, they shall be installed directly into a tank tapping or in a water line close to the tank. They shall be set to open at least 25 psi (172 kPa) above the system pressure but not over 150 psi (1034 kPa). The relief-valve setting shall not exceed the tanks rated working pressure.
P2803.4 Temperature relief valves. Temperature-relief valves shall have a relief rating compatible with the temperature conditions of the appliances or equipment protected. The valves shall be installed such that the temperature-sensing element monitors the water within the top 6 inches (152 mm) of the tank. The valve shall be set to open at a maximum temperature of 210°F (99°C).
P2803.5 Combination pressure-/temperature-relief valves. Combination pressure-/temperature-relief valves shall comply with all the requirements for separate pressure- and temperature-relief valves.
P2803.6 Installation of relief valves. A check or shutoff valve shall not be installed int the following locations:
1. Between a relief valve and the termination point of the relief valve discharge pipe;
2. Between a relief valve and a tank
If you have more questions regarding the Water Heater installation requirements please contact the Lewisville code enforcement department at (972)219-3400.
If you would like more information on water heaters and pricing call Harvey West Plumbing or Water Heaters for Less Plumbing at (972) 509-0224 or visit our website.
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Garland Tx Water Heater Requirements Updated
May 6, 2009
Effective September 2007, the Texas State Legislature enacted into the Plumbing License Law additional wording to specifically include water heaters in their list of plumbing fixtures, required by law, to have a plumbing permit issued prior to installation. In addition, the law provides that such installations be done according to current codes by a Garland TX licensed master plumber and inspected by a licensed plumbing inspector.
City of Garland Texas Water Heater Installations Requirements:
A permit must be obtained for a water heater replacement. An inspection must be made of all water heater replacements. Approximate times can be scheduled for the inspections (within 2 hours). The homeowner needs to contact the inspector directly to set up the appointment. Inspectors can be reached between 7:30 – 8:30 and from 3:30 – 4:00. An adult must be present to complete inspection.
T & P valve must be installed and operating properly. T & P drained must be at least ¾” copper or CPVC. It must terminate on the garage floor or outside and be turned down approximately 6” of the garage floor or ground. A shut off valve is required on the cold water pipe at the water heater. Water heaters in garages are ONLY required to be elevated when required by the manufacturer’s installation instructions. Dielectric connections are only required to be installed when required by the manufacturer’s installation instructions. A pan and drain is required on any water heater in an attic, on the second floor, over pier and beam construction or when there is an existing pan and drain. The drain must be 3/4′” and drain outside between 6” – 24” off the ground.
Gas water heaters: A gas shutoff valve is required within 6 feet of the water heater. It must be accessible and be in the same room with the water heater. Combustion air must be provided for a gas water heater in a closet or in a small room. Type B vent (double wall) is required into and through the attic (or other concealed space). There must be 1” clearance between the vent and sheetrock, wood, insulation and combustibles. A gas water heater in a bathroom or bedroom must be installed inside a closet used solely for the water heater. The closet must have a threshold and a solid door that is weather-stripped. Water heater vent cap must have proper clearance above the roof. Water heater vent cap must be 8’ from any vertical walls or have proper clearance above the roof that is supported by a wall within 8’ of the vent cap. (Direct vent water heaters can be installed according to manufacturer’s instructions.)
Water heaters in attics: The water heater must be within 20’ of the attic access. Permanent steps or a permanent ladder is required into the attic (pull down starts are ok) the attic access and the path to the water heater must be large enough to install the new water heater and remove the old water heater. A light that can be switched from the attic access is required. A 24” wide catwalk to the water heater plat form is required. A 30” x 30” work platform in front of the water heater controls is required. A pan with a drain that terminates outside is required. The vent cap on a gas water heater must be at least 5’ above the draft collar.
NEW!! Due to recent changes in manufacturer’s specifications, most gas water heaters require a sediment trap on gas line to the water heater.
City of Garland TX Building Inspections 972-205-2300
For more information on water heaters and water heater pricing in Garland TX please visit our website.
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Frisco TX Water Heater Requirements Updated
May 6, 2009
Effective September 2007, the Texas State Legislature enacted into the Plumbing License Law additional wording to specifically include water heaters in their list of plumbing fixtures, required by law, to have a plumbing permit issued prior to installation. In addition, the law provides that such installations be done according to current codes by a Frisco TX licensed master plumber and inspected by a licensed plumbing inspector.
Frisco Texas Water Heater Installation Requirements:
The City Frisco Texas follows the 2006 International Plumbing Code. Local amendments listed: Water heaters installed above ground or floor. When the attic, roof, mezzanine or platform in which a water heater is installed is more than eight (8) feet above the ground or floor level, it shall be made accessible by a stairway or permanent ladder with a minimum 300 pound capacity fastened to the building, or an access door from an upper floor level. Exception: a max 10 gallon water heater (or larger with approval) is installed is not more than ten (10) feet above the ground or floor level and may be reached with a portable ladder.
Requirements for discharge pipe: The discharge piping serving a pressure-relief valve, temperature relief valve or combinations valve shall: not be directly connected to the drainage system. Discharge through an air gap located in the same room as the water heater. Not be smaller than the diameter of the outlet of the valve served and shall discharge full size to the air gap. Serve a single relief device and shall not connect to piping serving any other relief device or equipment. Discharge to an indirect waste receptor or to the outdoors. When discharging outside the building, the point of discharge shall be with the end of the pipe six (6) inches above the ground or the floor level of the area receiving the discharge and pointing downward. Discharge in a manner that does not cause personal injury or structural damage. Discharge to a termination point that is readily observable by the building occupants. Not be trapped. Be installed to flow by gravity. Not terminate more than 6 inches above the floor or waste receptor. Not have a threaded connection at the end of the piping. Not have valves or tee fittings. Be constructed of those materials listed in Section P2904.5 or materials tested, rated and approved for such use in accordance with ASME A112.4.1. Not discharge into a pan required in Section 2801.5. T & P discharge line requires a union.
Where water heaters or hot water storage tanks are installed in attics or furred spaces, in an approved location within the occupied area of a building or in a garage adjacent to the common wall with an occupied area where leakage of the tanks or connection will cause damage, the tank or water heater shall be installed in a galvanized steel pan having a minimum thickness of 24 gage or other pans approved for such use.
Combustion air and ventilation: Combustion air and ventilation for fuel burning water heaters, other than as-fired, shall be in accordance with the International Mechanical Code as adopted by the City of Frisco, Combustion air and ventilation for gas-fired water heaters shall be in accordance with the Fuel Gas Code as adopted by the City of Frisco.
NEW!! Due to recent changes in manufacturer’s specifications, the City of Frisco requires the installation of a gas sediment trap for all gas water heaters.
NEW!! (9/21/09) A means for thermal expansion control is required where a closed system is in place. A PRV is considered to create a closed system.
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City of Frisco TX Building Inspections 972-292-5300
For more information on water heaters and water heater pricing please visit our Plumbing website or call our office at (972) 509-0224
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Richardson TX Water Heater Requirments Updated
May 6, 2009
Effective September 2007, the Texas State Legislature enacted into the Plumbing License Law additional wording to specifically include water heaters in their list of plumbing fixtures, required by law, to have a plumbing permit issued prior to installation. In addition, the law provides that such installations be done according to current codes by a Richardson TX licensed master plumber and inspected by a licensed plumbing inspector.
Richardson Texas Water Heater Installation Requirements:
The City of Richardson Texas requires all water heaters have a walkway, platform, accessibility and clearances. The water heater flue must be secured and supported with proper slope and clearance to combustibles. A horizontal portion of flue can be no more than 75% of total flue height. Draft diverter must be securely fastened to flue and water heater. Combustion air shall be met when required.
If the water heater location is in the garage, it must be in a recessed closet or alcove and ignition source elevated to 18” above the floor or protected from vehicle impact and ignition source elevated to 18” above the floor. Water heaters located in an attic shall be located no further than 20’ from access opening with a 24” wide walkway and 30” service platform. The walkway and service platform shall be constructed of ¾” solid flooring material. Proper joint support shall be constructed and water heaters must sit on at least a 2 x 4 material perpendicular to joists.
Proper installation of a T & P valve and pan drains: T & P shall be at least ¾” and pan drain shall be at least 1” in size and shall run separately to the exterior or other approved place of disposal. Insulation shields are required where vents pass through insulated assemblies and attic space. The insulation shield shall not terminate less than 2” above the insulation material and secured in place. Gas vent termination shall be at least 8’ from vertical wall and a minimum height above roof line dependent on roof pitch OR shall be at least 2’ higher than any portion of the building within 10’.
An existing water heater does not require a pan and drain on the first floor.
NEW!! Due to recent changes in manufacturer’s specifications, most gas water heaters require a sediment trap on gas line to the water heater.
City of Richardson TX Building Inspections 972-744-4180
For more information on water heaters and water heater pricing for Richardson TX please visit our website.
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Dallas Water Heater requirements Updated
May 6, 2009
City of Dallas TX Water Heater Requirements- Water Heater Installation Code
Effective September 2007, the Texas State Legislature enacted into the Plumbing License Law additional wording to specifically include water heaters in their list of plumbing fixtures, required by law, to have a plumbing permit issued prior to installation. In addition, the law provides that such installations be done according to current codes by a Dallas TX licensed master plumber and inspected by a licensed plumbing inspector.
The city of Dallas follows the 2006 International Plumbing Code and Fuel Gas Code. Below are additional requirements as listed by the City of Dallas inspections Department.
RP2801.5 Required pan. Where water heaters or hot water storage tanks are installed in locations where leakage of the tanks or connections will cause damage, the tank or water heater shall be installed in a galvanized steel pan having a minimum thickness of 24 gage (0.016 inch) (0.4 mm) or other pans listed for such use.
All new water heater installations require a drain pan and drain. Existing water heater installation that was approved under a previous code and does not have an existing drain pan and drain, which is installed in a location where leakage from the water heater will not cause structural damage, will not be required to have a drain pan and drain installed when replaced.
Section P2803.1 requires a “relief valve” on appliances and equipment used for heating water or storing hot water. This section refers to relief valves and not to T&P valves. Section 2803.4 requires the “Temperature Relief Valve” to be installed in the top 6″ of the tank. On “tankless” water heaters, this is not possible. Therefore, a “Temperature Relief Valve” or a “T&P valve” is not required, if not required by manufacturer’s installation instructions.
However, it is required that a “Pressure Relief Valve” be installed on tankless water heater systems, whether it is required by the manufacturer’s installation instructions or not. This relief valve should be equal to a Watts Series 53L/3L or BRVS/BRVT.
The setting for this relief valve shall be set to open at least 25 psi above the system pressure but not over 150 psi. The relief valve should be located as close as possible to the water-heating device, and may be installed on either the cold or hot water piping system.
Access Opening. Access to a water heater shall be through an opening, door or passageway not less than 2 feet (610 mm) in width and large enough to permit removal of the water heater, but not less
than 30 inches (762 mm) in height. A permanent ladder leading to any part of such a passageway shall comply with the Dallas Building Code and be not less than 6 inches (152.4 mm) from the face of the wall.
Each stile is to extend 30 inches (762 mm) above the surface to be reached, or as high as possible, if height is limited. Permanent ladders for water heater access need not be provided at parapets or walls less
than 30 inches (762 mm) in height.
UPDATED!!No stand is required for electric water heaters installed in the garage.
NEW!! Due to recent changes in manufacturer’s specifications, most gas water heaters require a sediment trap on gas line to the water heater.
For more information on water heaters and water heater pricing in Dallas TX please visit our website.
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Updated Allen Tx Water Heater Requirements
May 6, 2009
Effective September 2007, the Texas State Legislature enacted into the Plumbing License Law additional wording to specifically include water heaters in their list of plumbing fixtures, required by law, to have a plumbing permit issued prior to installation. In addition, the law provides that such installations be done according to current codes by an Allen TX licensed master plumber and inspected by a licensed plumbing inspector.
Allen Texas Water Heater Installation Requirements:
Water Heater installations shall be subject to the following: All water heaters, including those installed in garages shall have a pan beneath them. All waters heaters installed in the garage, gas or electric, new or replacement must be elevated to where the ignition source is at least 18” above the floor. Pan drains should terminate outside the building if possible. Where this is not possible, a boiler drain should be installed in the pan outlet. Pan drains for the water heater may terminate at the lip of the tire stop in the garage if the garage floor is sloped. Due to the possible fire hazards, replacement water heaters shall meet current codes with regard to combustion air and vent clearance.
NEW!! Due to recent changes in manufacturer’s specifications, most gas water heaters require a sediment trap on gas line to the water heater.
Allen TX Building Inspection 214-509-4130
For more information on water heaters and water heater pricing please visit our website.
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Updated Carrollton Water Heater installation requirements
May 6, 2009
Effective September 2007, the Texas State Legislature enacted into the Plumbing License Law additional wording to specifically include water heaters in their list of plumbing fixtures, required by law, to have a plumbing permit issued prior to installation. In addition, the law provides that such installations be done according to current codes by a Carrollton TX licensed master plumber and inspected by a licensed plumbing inspector.
Carrollton Texas Water Heater Installation Requirements:
All water heaters must have an expansion tank for thermal expansion protection installed on the cold water pipe. A 1 ½” deep water heater pan must be approved for application with a ¾” drain line to outside or approved receptor. If water heater installed in garage or attic, all water pipes must be insulated. If it is structurally impossible to install a drain line to the outside, then the pan will be required with a fitting attachment that connects to a water hose, and this fitting must be capped, or to lowest point of garage floor. Pressure relief valve discharge pipe shall discharge outside not more than two feet or less than six inches above ground/floor level, or into an approved indirect waste receptor. It is required to have an isolation valve on cold water pipe of water heater to shut off water. Cold water electric ground wire and clamp must be secured to pipe ahead of shut off valve. Unions on water inlet, outlet and temperature and pressure discharge lines are required (nut on water flex constitutes a union). If water heater is installed in garage it is required that the pan drain pipes to floor or outside. Gas water heaters are required to have upper and lower combustion air installed in a closet area. It is required to have 1” clearance on water heater vent from all combustible materials and observe manufacturer’s specifications. Gas stop must be of ball valve type and must be able to shut off by hand. Maximum length of flex gas pipe is 36”, ½” minimum size.
NEW!! Due to new manufacterer specifications, most gas water heaters are required to have a sediment trap installed on the gas line to the water heater.
Carrollton TX Building Inspection 972-466-3225
For more information on water heaters and water heater pricing please visit our website.
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Updated Plano Water Heater Installation requirements
May 6, 2009
RECENT CHANGES IN WATER HEATER CODE REQUIREMENTS FOR CITY OF PLANO
Effective July 1, 2008, the City of Plano adopted 2006 IPC and Fuel Gas Code, which requires a sediment trap on gas fixtures including the water heater.
UPDATED CITY OF PLANO BUILDING INSPECTIONS DEPARTMENT- WATER HEATER INSTALLATION REQUIREMENTS.
1. Location Access and Working Space (not shown)
Gas water heaters prohibited in bathroom or bedroom. Working space: 30 inches x 30 inches. Attic Location: Permanent ladder or stairs required. 30 inches walkway required with 30 inches x 22 inches access door. Water heater must be within 20 feet of access door. Exterior location: Water heaters must be protected from the elements and must be accessible from a minimum 24 inch wide door.
2. 18 inch stand Required when water heater is installed in a garage. Not required if Water Heater is inside structure and away from vehicular traffic.
3. Corrosion Resistance Pan Required for installation above 1st floor. Corrosive resistant ¾ inch drain line required to discharge at a visible location: exterior above grade, floor sink, mop sink. T&P line may NOT drain to Pan.
4. Shutoff Valve A shutoff valve is required on the cold water supply and is readily accessible. Dielectric unions not required for hot and cold lines.
5. Pipe Insulation Pipe insulation is required on first 5 feet of hot and cold water pipe and to within 6 inches of draft hood.
6. Temperature & Pressure (T&P) Relief A temperature and pressure relief valve is required. ¾ inch minimum drain line must run with fall to approved locations: Exterior of building and located between 6 and 24 inches above finished grade, floor sink, or mop sink.
7. Combustion Air (Gas Water Heaters Only) Where located in a confined space (less than 50 cubic feet of area for each 1000 BTU input rating of water heater) a high and low combustion air opening must be provided within 12 inches of the top and bottom of the enclosure.
8. Vent (Gas Water Heaters Only – Ref. footnote for G2428.2.3 of IRC)
A double wall (type B) vent must be provided with a min. 1 inch to combustibles. Min. 5 feet vertical required between vent collar and vent cap. Vent may have offsets of up to 45 degrees and one offset of up to 60 degrees. Vent must terminate in a listed vent cap. Vent stack minimum 5 feet.
9. Vent Connector(Gas Water Heaters Only) Single wall vent connector allowed to connect water heater to its vent. Vent connector must be exposed and cannot run into or through concealed construction. Minimum 6 inch clearance to combustibles. Min. pitch ¼ inch per foot.
10. Gas Connector (Gas Water Heaters Only) Accessible and approved valve with maximum 3 feet of flex connector. Connector and valve must not be concealed.
NEW!! 11. Due to recent changes in manufacturer’s specifications, most gas water heaters require a sediment trap on gas line to the water heater.
12. Tank-less Water Heaters Follow manufacturer installation instructions & comply with Int’l Fuel Gas Code for gas line size &vent. A gas load calculation shall be provided on the jobsite when calling the first inspection.
Notes for ELECTRIC water heaters:
1. Item (2): Stand not required in garage or inside homes on replacement work
2. Dielectric unions not required.
3. Flex connection not required for hot and cold lines. Copper pipes acceptable.
4. Item (3): Drain pan is not required if water heater is on the 1st floor.
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