How to Replace a Heat Register


All heat register manufacturers have their own design, installation and removal instructions but the basic structure and purpose is the same throughout the industry. Because of their long lasting materials and simple design, there are lots of different registers in use today. Finding the exact replacement for a 50- or 60-year-old heat register may not be possible but changing it to a new and improved model is a project that you can do yourself.

Things You'll Need

  • Ladder (if necessary)
  • Screwdriver (if necessary)
  • Measuring tape
  • Pencil
  • Paper
  • New heat register
  • Turn off the heat and fan at the thermostat.

  • Remove the heat register by lifting it from the framing or unscrewing the mounting screws.

  • Measure and mark down the length and width of the register frame opening, for each register you will be replacing.

  • Locate and purchase a new heat register from a heating and air supply house or large home improvement store.

  • Position the new register over the existing mounting frame, in the heat duct opening, and screw it into the old frame with the provided screws, if needed. Only ceiling and wall mounted registers will need the mounting screws.

Tips & Warnings

  • Explore your options for replacing an older model register with a new one. The are directional registers and decorative registers readily available today.
  • Contact a heating and air professional before increasing or decreasing the opening if you can not locate the correct size. The duct needs to be a certain size for your furnace to operate correctly.

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