A regular soaking tub and a heated soaking tub can look almost identical. Both may be deep, comfortable and designed for a quiet bath without jets or a circulating pump.
The difference becomes more noticeable after you get in. A conventional soaking tub relies on the hot water you put into it at the beginning. From that point on, the bath naturally loses heat to the air, the tub and the surrounding room.
A heated soaking tub adds active temperature support. In Vanderstil’s approach, an integrated electric heating system warms the bathing shell to help offset heat loss and maintain bathwater temperature for longer.
Starts hot, then naturally cools
There is no active heat source during the soak. Heat gradually leaves the water through normal heat transfer.
Actively helps maintain warmth
The heated shell supplies controlled heat while you soak, helping reduce the rate at which the bath cools.
Side-by-side comparison
| Feature | Regular soaking tub | Vanderstil heated soaking tub |
|---|---|---|
| Temperature maintenance | No active heat maintenance; the bath gradually cools. | Heated shell helps maintain bathwater temperature. |
| Adding hot water | May be needed during a longer soak if the water becomes too cool. | Designed to reduce the need for repeated hot-water top-ups. |
| Jets or pump | Not required for a standard soaking tub. | Not required for Vanderstil’s quiet heated-shell soaking models. |
| Noise | Quiet when no pumps or jets are fitted. | Designed for quiet soaking without a circulating pump. |
| Electrical requirement | Typically none for a basic non-heated tub. | Requires an appropriate electrical supply and protection for the heating system. |
| Water use during a long soak | Extra hot water may be used if the bath is topped up. | Can help avoid repeated drain-and-refill top-ups solely to restore temperature. |
| Up-front complexity | Simple plumbing installation. | Adds the heating controls and electrical installation requirements. |
| Best suited to | People happy with a conventional bath that naturally cools over time. | People who value longer, quieter soaks with more consistent warmth. |
What are the key differences?
1. Temperature stability
The biggest difference is straightforward: a regular soaking tub has no active way to replace heat while you are bathing. A heated tub does.
2. Long-soak comfort
If you tend to stay in the bath for a long time, temperature maintenance becomes more noticeable because you are less dependent on the starting temperature alone.
3. Quiet operation
A heated soaking tub does not have to be a whirlpool. Vanderstil’s heated-shell models are intended to preserve the calm, quiet experience of a traditional soak.
4. Electrical installation
A regular bath may only need plumbing. A heated bath also needs a properly installed electrical supply and safety protection appropriate to the certified system.
5. Energy and water trade-off
A heated tub uses electricity while operating. A regular tub does not, although repeatedly adding hot water during a long soak also uses water and the energy required to heat it.
6. Purchase price
A heated tub contains additional controls, heating and safety components, so it should be expected to cost more than an otherwise comparable basic soaking tub.
Is a heated bathtub the same as a whirlpool tub?
No. These are different ideas.
A whirlpool bathtub typically moves water through jets using a pump. That creates the massage effect many people associate with a spa bath.
A Vanderstil heated soaking tub is aimed at a different experience: quiet heat without needing jets or a circulating pump. The goal is not to agitate the water. It is to help maintain the warmth of an ordinary soaking bath.
Which one is right for you?
A regular soaking tub may be all you need if your baths are relatively short, you are comfortable with gradual cooling and you want the simplest possible installation.
A heated soaking tub becomes more compelling if you regularly enjoy longer baths, dislike repeatedly adding hot water or simply place a high value on keeping the bathing experience warm and quiet for longer.
The simplest way to think about it
A regular soaking tub holds hot water. A heated soaking tub is designed to help that water stay warm.
A warmer way to soak
Vanderstil is developing Canadian-designed heated soaking tubs around a simple idea: a bath should be able to stay comfortably warm without giving up the quiet simplicity people like about a normal bathtub.
The system uses controlled electric heat to warm the bathing shell and help maintain bathwater temperature, while the heated-shell models remain free of the jets and circulating pump associated with a whirlpool bath.