Choosing and Maintaining Heated Birdbaths

Last Updated on June 14, 2024 by Nancie

Evra Heated Bird Bath
Evra Heated Birdbath

As in large parts of the US, it has been bitterly cold here in Maryland. My bird feeders are hopping with birds, as are the birdbaths. When everything else is frozen solid, a heated birdbath is a big draw for birds . . . and OK, also squirrels and neighborhood cats. Everyone is looking for a place to get a drink. To keep birds coming, you need to choose your birdbath well and maintain it!

Estimated reading time: 9 minutes

Maintaining Heated Birdbaths: Tips

Keep An Eye on Heated Birdbaths

When the weather is especially cold, I need to top off or replace in birdbath water as often as every day. This is partly because there are so many creatures drinking from it. But I suspect dry winter air pulling some water into the air may have a part as well.

Deck Mounted Bird Bath
Deck Mounted Birdbath

This past week, temperatures have been as low as 3 degrees F. I often see steam-like wisps coming up off the water when it is newly filled, even when the water I’m using is inside room temperature. Although it looks like it is steaming hot, it isn’t. I think this is the water wisping up into the dry air.

Keep Heated Birdbaths Full

When it is really cold, a de-icer, whether separate or built in, can be really challenged to keep water completely ice-free unless you keep the bath full.

A separate de-icer (like the one shown below) may not be able to keep the water ice-free if there is not enough water in the bath to cover the de-icer itself. Ice can form in the shallow water farthest away from the de-icer. If that happens, add more water. It will melt again.

Keep in mind that the need to keep enough water in the bath might allow larger birds to bathe in it, but it might be too deep for the smallest birds. They might just use it to drink and not bathe. I have a large plastic pitcher that I use to fill birdbaths in the winter when the hoses are turned off.

A de-icer built into the bath (like in the deck-mounted bath shown above) can get icy around the edges if the water gets low and it is very cold. I found this week that if I didn’t keep it topped off, a crust of thin ice would form on the water surface along the inside edges. The water at the center still stays clear. Again, keeping the bath full to the top keeps the water ice-free.

Clean Heated Birdbaths Often

With so much activity, I need to clean winter birdbaths more often than in warmer months. After dumping the dirty water, I use a sturdy birdbath brush to quickly scrub the inside of the bath. Then I re-fill it. It only takes a minute of two about every other day.

Choosing Heated Birdbaths

De-Icer and Cord
De-Icer and Cord

Allied Precision Birdbath De-Icer

I heat three birdbaths in winter months, each a different type. For the first, I use a separate de-icer orginally purchased from Amazon in a non-heated birdbath. Originally I used this de-icer in an improvised plant saucer birdbath. Because the de-icer cord was only ten feet long, at that time I added a Master Electrician 20-Foot 16/3 Vinyl Landscape Outdoor Extension Cord and a Hot Headz Extension Cord Safety Seal Water Resistant Cord Cover for where the de-icer cord and the extension cord come together.

But last spring, I replaced that particular improvised birdbath with a tall decorative commercial birdbath. The de-icer now goes in it. This birdbath is a bit farther out in the yard so I purchased an even longer landscape outdoor extension cord to reach it from the local home improvement store.

American Robin Enjoying Birdbath in the Snow
Robin in Heated Birdbath in the Snow

Replacing the Original Birdbath De-icer

This de-icer is thermostat controlled so it keeps the water from freezing but doesn’t let it get overly hot, even if the winter day gets a bit warmer. For safety, you need an outdoor electrical outlet with a GFCI (Ground Fault Circuit Interrupter.) If you don’t already have this, you might need an electrician to set that up for you.

My original de-icer died at the beginning of the current winter season after two years of use. I liked it so much though, that I went to my local birding store, Mother Natures, to purchase a replacement the same day. (2024 Note: Mother Nature’s has just converted to a Wild Birds Unlimited Store.)

How did I know it had died? I found ice in the birdbath. Checking the outlet it was plugged into, I found it had tripped the GFCI switch. Re-plugging it tripped the switch every time. (This is a good thing; you want the switch to interrupt the circuit if there is a problem with the de-icer.)

So off to the store I went. If you don’t have a local store that stocks these, you can find them on Amazon (where I purchased the original one.)

2019 Update: The second de-icer just died. (I found it encased in ice in the birdbath with the GFCI switch tripped.) So I’ll be buying another one. Sigh. If you purchase one of these, don’t expect them to last forever. My local store tells me they are guaranteed for two years. That has fit with my own experience.

Evra Deck Mount Birdbath
Evra Deck Mount Birdbath

Erva Clamp Mount Heated Birdbath

I also purchased a commercial heated birdbath this year, the Erva Clamp Mount Heated Birdbath. This one goes on the front porch and has the heater built into the birdbath bowl.

Originally I had a heated pet bowl sitting on a table on the porch. But a very tenacious crop of neighborhood cats started camping out next to the table to hunt birds. So I replaced it with this deck-mounted birdbath that is harder for cats to menace. Cats don’t camp out here anymore.

This birdbath has a metal deck mount that serves as a collar to hold the birdbath. It hangs off the outside of a deck railing. We have it on our front deck. My husband needed to do a little surgery to our deck railing because it was too thick for the clamp that grabs the railing.

I bought this one at our local bird store, Mother Natures. Local birding stores seem to be a good place to find Erva products. But you can sometimes find them on Amazon.

At the store, I could purchase the bath with either a simple plastic insert for warmer months or a plastic insert with a plug attached so you can heat it. The store sold inserts separately so I bought both, making it an all-weather solution. In the spring, I’ll swap out the heater insert for the unheated one.

Because this birdbath is very shallow (less than 2″ deep) it is nice for birds of various sizes to bathe in. It is popular for drinking as well. Because it is so shallow though, it needs to be topped off often, especially in the winter.

Getting the Electrical Right for the Birdbath

Like the de-icer, these heated birdbaths also need an outdoor electrical outlet with a GFCI (Ground Fault Circuit Interrupter.) The Erva deck mount bath I got also comes with a very short cord. So I needed a short outdoor extension cord even though it is only about eight feet from the outlet. Also like the de-icer, I protect the area where the cords connect with a cord cover as I did with my other birdbath cord. 

Heated Pet Bowl Under a Bench
Heated Pet Bowl Under a Bench

Heated Pet Bowl

My third heated birdbath isn’t really a birdbath but a heated pet bowl. It has a medium length cord and is much deeper than a typical birdbath. These, or something similar, can be found at some pet stores or on Amazon. The one I am using now was purchased at a Petsmart store. It has lasted many years and sits on my back step under a bench.

This one is not thermostat controlled, so if you let it get low or keep it plugged in on warm days, the water can get hot. I suspect that if you let this one sit empty plugged in, it would probably burn out. I do have this one on a GFCI circuit for safety which I believe would cause the outlet’s switch to trip if this happened.

In this location, it is popular with squirrels and cats but also with Carolina Wrens for some reason. It’s deep, so most birds only sit on the side and take a sip. But one year I had a whole group of American Robins take turns bathing in it on a winter day. When it is really cold, I need to top it off every day.

Because of its location, most birds do prefer one of the other birdbaths. But because cats and squirrels are more likely to use this one, they leave the other baths alone a bit more. Until this year, I had a second one of these on a small table on my front porch that did get a lot of bird activity.

Get A Heated Birdbath!

Whichever way you decide to go, consider providing a heated birdbath for your backyard birds. They will greatly appreciate it!


More on Birdbaths:

Does Your Hose Provide Clean Water For Your Birdbath?

Keeping Cats Out of Birdbaths

Choosing & Maintaining Heated Birdbaths

Improvised DIY Heated Birdbaths

Make Your Own Birdbath

My Newest DIY Birdbath Has Something to Hide!

My Favorite Birdbath: Studio M

Simple Inexpensive Birdbath

Taking Care of Summer Birdbaths

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8 thoughts on “Choosing and Maintaining Heated Birdbaths

  1. Wow great post! These birdbaths are so great! I will definitely be looking into these for my birdies! Thanks so much, I learned so much from your post, as always!! Thank you!

  2. Thank you for sharing all the great tips for providing water for the birds in winter. I always enjoy reading about your birding adventures!

  3. GREAT info! Love that you choose non toxic items for the birds and wildlife. I also bought a hose that is drinking water safe. It has no BPA no lead and no phalate. It is hard to find but worth it! I also wouldn’t want to fill a swimming pool without a nontoxic hose. I also use a glass Pyrex pie plate on the ground year round. It’s freezer safe and oven safe so it’s great for all seasons! Cleans and refills easily and is the perfect depth and inexpensive. I use several.

    1. Hi Diane,
      I like your glass Pyrex pie plate idea. It does sound like such an easy alternative. Sometimes plastic will get brittle over the years and have to be replaced eventually but the Pyrex ought to do very well.
      Thanks for sharing!

  4. I had a birdbath and the birds loved it. It was a heated birdbath it quit working so I purchased the same birdbath. The birds will not use it. I see the birds this morning checking out a smaller shell or one but will not use it why?

    1. Hi Joni,
      That’s weird since it is the same birdbath. My thought would be to see if you can see any small difference that might be the cause (since manufacturers can sometimes change their products over time.) Or, is there any difference in where you put the birdbath, its water level, etc? Also, double-check that the water temperature seems reasonable (not super hot for some reason.) Another approach might be to dump out the water and wash the birdbath really well (with the idea that maybe there is some type of residue on it that might make the water undesirable to them in some way that isn’t immediately obvious to a person. And finally, it might just need some time for them to adjust to the replacement, especially if there is a gap between the time the old one was removed and the new one put in place.

  5. I have a deicer and it says it must me submerged – the problem is that it’s very light so it floats! How am I supposed to make sure it’s submerged? Thank you in advance!

    1. Hi Mary-Chris,
      Hmmm. This isn’t a problem I’ve had myself. The one I use is metal and heavy enough to sit on the bottom of the birdbath (although I do need to keep enough water in it to keep it under.) My thought on this would be that if the directions specify that it must stay submerged and it won’t behave, then it either needs to be weighed down or tied down in some way. I hesitate on that though, because you would want to be sure that whichever method used wouldn’t in some way interfere with the heater function or contaminate the water in some way. So my best suggestion would be to find the manufacturer’s website and try to ask them what might work best.
      Good luck!

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