How to Make Safe DIY Baseboard Heater Covers Out of Wood

by Kelly-n-Tony
14 Materials
8 Hours

Today, we're making DIY baseboard heater covers. We have a house that's over 100 years old. It has baseboard hydronic heating, which means ugly metal covers that are often dented, rusty, and falling apart.

I'd checked into purchasing replacement covers and they aren't cheap. Especially if you have one in every room in the house and we have 14!

We've been working on one room at a time and when we painted the living room, we painted the metal baseboard heater covers because they were in ok condition, and that worked fine.

But when we got to the bathroom renovation, those covers were rusty due to the moisture in the room. So we decided on wood covers after verifying it was safe for hydronic heaters.

The little metal fins on hydronic heaters just don't get hot enough to start a fire even if your curtains or sofa touch them. Even Bob Vila said it was ok!

Please note: this DIY design is only intended for hydronic (oil or water) heaters and NOT electric heaters.

Baseboard hydronic heating with metal covers

1. Disassemble the cover

It's a relief to rip the ugly covers off and dispose of them. You're going to leave the metal backing (or replace it) behind the tin fins for proper heat conduction.

Tip: this is a good time to vacuum the dust bunnies icon out of the tin fins. The air will warm more efficiently if it can easily flow through the tin fins.

Making the end pieces

2. Make your two end pieces

We cut from scrap wood two pieces measuring 5½ x 6 x ¾ inches tall. These will be your end pieces. Round the front top piece if you like.

Drill and place two dowel pins into the top of each of these pieces. Use wood glue to secure them.

Attaching the double roller catch

3. Attach your double roller catch

Through trial and error, we discovered adding a small block of wood to the end pieces stops the front piece from rocking. We also ended up notching this side out a bit to accommodate the pipe coming up from the floor.

Using a drill attach your double roller catch at each end to this small block of wood. These catches are also used on cabinet doors so they hold in place or give as needed. This makes it easy to remove the front piece of wood if needed.

Making the top and front piece

4. Make your top and front piece

The length depends on the size of your heater. Ours used 1x4x6 pieces of pine wood cut 49" for the top piece and 47½" for the front piece.

Using a router bit, you can see how nice it looks to add the rounded edges. The top only needs one rounded edge while the front has two.

Adding dowel joints

5. Dowel joints on the top

Drill two holes on the top piece at both ends. Align them so you can drop your top piece onto your dowel pins. Don't glue these pieces; that way, you can take the cover off if you need to.

Assembling the DIY baseboard heater covers

6. Assemble the cover

Here you can see the top piece as it sets on the dowel pins on the end pieces. You can also see the double roller catch on the end piece and the front piece will snap in place now.

The cool air is drawn in at the bottom front and then comes out warm at the top front opening. It works as well or better than the ugly old metal cover.

DIY baseboard heater cover

7. Stain or paint

Here is the DIY baseboard heater cover in place. Since we added new flooring, I wasn't sure if we should stain the cover similar to the vanity or new flooring or paint it blue like the wall or white like the trim.

But after showing it to friends, it was determined that it was not a focal point and so should blend in as much as possible.

Painting the DIY baseboard heater cover to blend in with the bathroom wall

So, we painted the DIY baseboard heater covers with the same blue paint as the wall. What do you think, should it have been blue, white, or stained?

DIY baseboard heater covers

DIY baseboard heater covers

When all was said and done, it cost us only $8 in materials to make this heater cover. We are mighty pleased with the look and cost! Let us know your thoughts in the comments below.

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  3 questions
  • Barb Herries Barb Herries on Oct 01, 2020

    It won’t catch fire ??

  • DarthPagan DarthPagan on Oct 01, 2020

    I wonder if you backed it with metal (the wood cover) if it would be even more efficient for heat?

  • Marilyn Marilyn on Oct 02, 2020

    How did you make your window covering?

Join the conversation
2 of 20 comments
  • SUSAN BRUNO SUSAN BRUNO on Oct 01, 2022

    Looks great but how efficient is it to cast heat as metal would? WOOD is so expensive nowadays, I think the metal is less expensive just to replace. I have a 7 room house & would need to replace it all. Sorry I just don't have the convenience of time to build these.

  • Doreen Kennedy Doreen Kennedy on Oct 02, 2023

    I made custom covers too except I did back and line them with flashing. The metal conducts heat better than wood or plastic.