Before You Start:

• Determine the type of insulation material you want to use, how much you will need (length of the pipes), and the size of the pipe (match the pipe sleeve’s inside diameter to the pipe’s outside diameter for a snug fit).
• For electric water heaters, pipe sleeves made of polyethylene or neoprene foam are the most commonly used insulation.
• On gas water heaters, insulation should be kept at least 6 inches from the flue.
• If pipes are within 8 inches of the flue, your safest choice is to use fiberglass pipe-wrap (at least 1-inch thick) without a facing. You can use either wire or aluminum foil tape to secure it to the pipe.

Shopping List:

• Tape measure
• Pipe sleeves or strips of fiberglass insulation from your hardware store
• Acrylic, water pipe insulation tape, duct tape, or cable ties, to secure the sleeves—or aluminum foil tape or wire to secure the fiberglass pipe-wrap
• If using fiberglass pipe-wrap, use gloves and long sleeves and pants
• Scissors, box cutter or utility knife for cutting the insulation
• Headlamp or light if working in crawl space or dark area

Step-by-step instructions

1. Measure the pipes. Starting at the water heater, measure the lengths of insulation needed to cover all accessible hot water pipes, especially the first 3 feet of pipe from the water heater. It’s also a good idea to insulate the cold-water inlet pipes for the first 3 feet.
2. Cut the insulation to the lengths needed.
3. Place the pipe sleeve so the seam will be face down on the pipe.
4. Tape, wire, or clamp (with a cable tie) every foot or two to secure the pipe sleeve to the pipe.

To learn more about water heater pipe insulation or to have Commercial Service insulate your pipes, schedule an appointment with our easy Online Scheduling or by calling 812-339-9114.