Strapping Your Water Heater Wrap Around Security
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Strapping your water heater and making sure it is fitted with a flexible gas supply line will greatly reduce the danger of a fire or explosion from a gas leak after an earthquake.
The water contained within your water heater can also be a vital source of drinking water in an emergency.
If your water heater does not have a flexible gas supply line, contact a licensed plumber to install one.
These instructions are for a 30-40 gallon water heater within 12" of a stud wall.
The illustration above shows the strapping requirements for water heaters up to 40 gallons within 12 inches of a stud walls.
For water heaters over 40 gallon, but less than 100 gallons, use ¾ inch EMT conduit and 1-1/2 inch metal strap.
Water heaters over 100 gallons and/or water heaters more than 12 inches from a wall require a designed system.
Approved manufactured water heater support kits sold here
Locate wall studs on both sides of the water heater.
Pre-drill holes for anchor bolts in stud center.
Measure distance around water heater. Cut two 1-1/2"x16 gauge straps to encompass water heater.
Drill holes in the ends of the straps and bend them 45 degrees.
Cut four pieces of ½" EMT conduit to the proper length as shown in diagram and flatten ends.
Drill holes in flattened ends of conduit. Bend flattened ends 45 degrees on one side.
Install strapping. Strapping shall be located at points within the upper and lower (1/3) one third of the vertical dimension of the water heater.
At the lower point, a minimum distance of 4 inches shall be maintained above the controls.
Wrap the straps around the heater and insert a 5/16" x 1-1/4" bolt with washer into the bent ends.
Install EMT conduit. Insert ¼" x 3" lag bolts through hole in ends of conduit into the wall stud and tighten.
Insert 5/16" x 1-1/4" bolt, that is in strapping, through other end of conduit and tighten.
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