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How the optional heated seat and backrest works, and why it turns off after 20 minutes

Updated September 2026

The optional heated seat and backrest warms the surfaces you sit and lean against, so the tub feels cozy from the moment you step in, while the water is filling, and even after the bath drains. It is a 4A radiant surface heating system built into the seat and backrest, completely separate from the in-line water heater that works with the hydro jets. Press its button once to turn it on, press again to turn it off, and know that it switches itself off automatically after 20 minutes, which is normal and by design.

How to Use It

Heated Seat Option for Your Walk-In Tub

The video above covers it in a few seconds, and here it is written out: Watch: Heated Seat Option for Your Walk-In Tub: Relaxed Bathing with a full transcript.

  1. Push the heated seat button once and the heated seat activates.
  2. For maximum comfort, turn it on 10 to 15 minutes before you enter the tub. That preheat is what makes the first touch of the seat pleasant instead of cold, especially while you wait for the tub to fill.
  3. The heated seat turns off automatically after 20 minutes. This automatic shutoff is a built in feature, not a fault.
  4. If you would like more warmth, just push the button again to restart it.
Heated seat and backrest area glowing inside an Ella walk-in bathtub
The heated seat and backrest warms the acrylic surfaces you sit and lean against.

Where the Button Is

The heated seat has its own small keypad, separate from the therapy push buttons that run the jets. On most tubs it sits on the deck or on the front apron near the other controls; some owners look for it among the jet buttons and miss it. Press it once to turn the seat on and again to turn it off. Our push controls vs digital touchpad article shows the layout of the other buttons so the heat keypad is easy to pick out.

Good to Know

ItemDetail
What it heatsThe seat and backrest surfaces, via radiant heater pads
Electrical draw4A, using less energy than a light bulb
Run timeAutomatic shutoff after 20 minutes; press again to restart
Preheat10 to 15 minutes before entering
ConstructionHermetically sealed and splash resistant; Made in USA
AvailabilityOptional accessory on most seated Ella models, not on the LayDown tubs; on Standard and Zen platform tubs the manual page for it is stamped Optional, not included
Answering Your Most Common Question about Walk-In Tubs
Chapters in this video
  1. 0:00 Staying Warm While Filling The video addresses concerns about getting cold while filling and draining a walk-in tub.
  2. 0:37 Heated Seats for Added Warmth The video explains how to use the optional heated seats for extra comfort.
  3. 0:54 Fastest Gravity-Driven Drains The video highlights the quick draining capabilities of Ella Tubs with dual oversized drains.

Watch: Answering Your Most Common Question about Walk-In Tubs with chapters and a full transcript.

This video answers the question Ella hears most, whether you get cold while the tub fills and drains. It shows the heated seat in context: push the button, wait a few minutes for the warmth to build, and it shuts itself off after 20 minutes and restarts with one press. It also covers the fast-fill faucets, the insulating acrylic walls, the in-line heater and the dual 2 inch drains that empty an average tub in about 80 seconds under ideal conditions. Our article on whether you get cold while the tub fills or drains goes into more detail.

Heated Seat vs In-Line Water Heater

These two features are often mixed up, and they are completely independent systems:

  • The heated seat and backrest warms the surfaces of the seat and backrest with electric radiant pads and has its own keypad button. It works whether the tub is empty or full, which makes it wonderful during fill time and drain time.
  • The in-line water heater maintains the temperature of the bath water and runs only while the hydro massage pump runs. It has no button of its own.

So if the water is warm but the seat is not, the heated seat system is the one to look at, and if the seat is warm but the bath is cooling, the in-line heater and your home hot water supply are the place to start.

If the Seat Does Not Feel Warm

First, give it the full 10 to 15 minute preheat, since the warmth builds gradually. Second, remember the 20 minute automatic shutoff; if it was switched on a while ago, it has likely simply completed its cycle and one more press restarts it. Third, confirm the option is actually on your order, since the heated seat is an add-on. On a soaking tub ordered with only the heated seat, the electrical requirement is a 15A, 120V line, and jetted tubs use the dedicated GFCI protected circuits shown on your model's electrical schematic, so it is also worth confirming with your installer that the tub's GFCI breaker is on and has not tripped and that the heater box cord is plugged into a live outlet in the equipment compartment. If the indicator never lights after those checks, open a ticket with your serial number and the team can send a replacement keypad or heater box. On a two-seat tub where only one seat warms, see two-seat tub: one side not working.

Adding a Heated Seat to a Standard Order

A heated seat and backrest can be added to any standard order as a regular option, so if you are still configuring your tub, simply include it. Clearance and warehouse units are the exception: those tubs are sold exactly as configured and are not modified, so a heated seat cannot be added to a clearance unit. Our article on what can and cannot be customized covers the other add-ons.

Common Questions

Where is the heated seat button?
The heated seat button is located on its own small keypad, separate from the therapy push buttons that run the jets. On most Ella's Bubbles walk-in tubs, it sits on the deck or on the front apron near the other controls. Press the button once to turn the heated seat on, and press it again to turn it off; it will also switch itself off automatically after 20 minutes.
Why did the seat turn off by itself?
The heated seat and backrest turns off automatically after 20 minutes because this automatic shutoff is a built-in feature, not a fault. This is normal and by design. If you would like more warmth, simply push the heated seat button again to restart it for another 20-minute cycle.
Can I add a heated seat later to a tub that is already installed?
The heated seat is built in at the factory and can be added to any standard order. For a tub that is already installed, open a ticket with your model and serial number and the team will advise. Clearance tubs are sold as configured and are not modified.
Does it need its own circuit?
It draws 4A. A soaking tub with only the heated seat needs a 15A, 120V line. On jetted tubs the pads are fed through the control box, and no published schematic adds a dedicated line for the heated seat; the line count follows the massage package on your model's electrical schematic.
Does the heated seat warm the water?
No, the optional heated seat and backrest warms the acrylic surfaces you sit and lean against, not the bath water itself. It is a 4A radiant surface heating system built into the seat and backrest, completely separate from the in-line water heater. The temperature of the bath water comes from your home's hot water supply via your faucet and is maintained by the in-line water heater only while the hydro massage pump runs.
Is the heated seat available on every model?
The heated seat and backrest is an optional accessory on most seated Ella's Bubbles walk-in tub models. It is not offered on the LayDown tubs. On Standard and Zen platform tubs, the heated seat is an optional extra rather than an inclusion, so its manual page is stamped 'Optional, not included'.
Can I have the heated seat on a soaking tub with no jets?
Yes, you can have the heated seat and backrest on a soaking tub with no jets. The heated seat is an option on seated soaking tubs as well as jetted ones. On a soaking tub ordered with only the heated seat, it is the only electrical component and requires a 15A, 120V electrical line.
Should I turn it on before or after I sit down?
You should turn on the heated seat and backrest before you sit down. For maximum comfort, press the heated seat button 10 to 15 minutes before you enter the tub. This preheat makes the first touch of the seat pleasant instead of cold, especially while you wait for the tub to fill. If you want more warmth after the automatic 20-minute shutoff, just push the button again to restart it.
I ordered the heated seat but cannot find it on my tub.
First, check your order confirmation to ensure the heated seat option was included. Then, look for the separate heat keypad on the tub's deck or front apron; it is not among the jet buttons. If the heated seat is on your order and you cannot find the keypad, open a ticket with your serial number and a photo of the deck through ellasbubbles.com/support.
How do people actually use the heated seat and back?
Customers typically use the heated seat and backrest like a heated car seat. They turn it on 10 to 15 minutes before the bath so the seat is warm and cozy from the moment they step in, especially while the tub fills. They also turn it on again while the tub drains, since the door stays closed until the water is completely gone.
The heated seat button on the outside of the tub does nothing at all. What should I check?
The button glows red while heating. If it stays dark while everything else on the tub works, have your installer check the small wire from the button to the blue control box behind the front access panel and try the second connector on the box. If it still stays dark, send photos of the button and the box through ellasbubbles.com/support.
The heated seat module has one three wire plug but the panel has two ports. Which one do I use?
The heated seat module has one three-wire plug, and the control box panel has two ports. You can use either port. The single plug fits into either port and will heat both the seat and the backrest; the second port simply stays empty.
It shut off after 20 minutes and my husband pressed the button again. Is it broken?
No, the heated seat is not broken. The heated seat and backrest is designed to switch itself off automatically after 20 minutes. Pressing the button again, as your husband did, simply restarts it for another 20-minute cycle, which is normal operation.

Still need help? Open a ticket at ellasbubbles.com/support or call (800) 480-6850 and our team will be glad to walk through it with you.

About this guide. Answers in the Ella’s Bubbles Support Center are compiled from real conversations with tub owners, our technicians’ notes and the product documentation, then reviewed by our team. Tub models and options have evolved over the years, so a detail here may differ slightly from your exact tub. If something looks different on yours, send us your serial number and a specialist will confirm it for your model.

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