Pressure Balance vs. Thermostatic Showers: What You Need to Know Before Buying
When it comes to designing your perfect shower, one of the most important (and often overlooked) decisions is how your water is controlled. Two of the most common shower valve types are pressure balance and thermostatic, each offer different benefits.
Not sure which one is right for you? Here’s what you need to know before installing or upgrading your shower system.
What is a Pressure Balance Shower Valve?
In a nutshell:
A pressure balance valve keeps the water temperature steady by regulating the balance between hot and cold-water pressure.
If someone flushes a toilet or runs a tap elsewhere in the house, this valve adjusts to maintain the temperature.
How it works:
It uses a single control handle that adjusts both temperature and flow together.
Pros:
- Simple to use (one handle does it all)
- More affordable than thermostatic
- Helps prevent sudden temperature spikes (like scalding)
Things to consider:
- Can't control flow and temperature separately
- Slight temperature shifts can still occur
- Not as precise as a thermostatic valve
What Is a Thermostatic Shower Valve?
In a nutshell:
A thermostatic valve gives you precise control over water temperature, using a built-in thermostat.
You can set your exact temperature (like 38°C), and the system maintains it consistently, even if someone runs water elsewhere in the house.
How it works:
Usually includes two controls:
- One for temperature
- One for flow/volume
Pros:
- Consistent, accurate temperature (great for kids/seniors)
- Lets you control temperature and flow independently
- Many models include a temperature lock for safety
Things to consider:
- More expensive upfront
- Slightly more complex installation
- Overkill for basic or guest bathroom
