How to Choose the Right Underfloor Heating System for Your Project
Underfloor heating (UFH) is one of the most efficient and comfortable ways to heat your home — but with so many options available,
choosing the right system can feel overwhelming. At Hydaheat Ltd, we make the process simple by guiding you through all the key
considerations.
Here’s what to think about when selecting the perfect UFH system for your project:
- Floor Height Availability
Not all floors are created equal when it comes to available height.
Retrofit systems typically range from 20mm to 40mm in height, so it’s important to measure your space and ensure you
have room for the system without affecting door clearances or skirting boards.
If height is limited, there are ultra-low-profile solutions available with little or zero build up.
- What’s the UFH Being Laid Onto?
Your existing subfloor plays a big role in system selection:
Concrete – Often suitable for full screed systems or low-profile overlay panels.
Wooden floors/joists – May require specialist spreader plates or structural considerations.
Mixed floors – In some cases, we can combine systems to suit each room.
- Choosing Between Water or Electric UFH
This is one of the most important early decisions:
Electric UFH:
Ideal for smaller areas such as bathrooms, wet rooms, or small extensions.
Operates at around 150W per m², giving quick heat-up times.
If you have a full solar system, electric UFH can be a cost-effective, low-profile solution for certain areas.
Water (wet) UFH:
Best for whole-house heating or large open-plan spaces.
Far more energy efficient in the long run, especially when paired with a heat pump or modern condensing boiler.
While installation costs are higher, the system can pay for itself over time through reduced running costs.
- Your Heat Source
The type of heat source will influence your UFH design:
Boilers – Compatible with all wet UFH systems.
Heat pumps – Often require reduced pipe spacing for optimal efficiency.
Other heat sources – We can advise on compatibility and controls.
- Final Floor Covering
Your choice of flooring affects the type of UFH system we recommend:
Tiles and stone – Excellent heat conductors, work well with all systems.
LVT (Luxury Vinyl Tile) – Temperature sensitive; requires a thermal barrier between the pipework and flooring to avoid damage.
Wood, carpet, or laminate – Each has specific thermal resistance limits we’ll factor into the design.
- Zoning Your Heating
By building regulations, any area separated by a door is a separate heating zone. However, there’s flexibility:
A hallway and small WC could share one thermostat for convenience.
Individual room zoning gives greater control and efficiency — but comes with more thermostats.
- Thermostat Options
Think about how you want to control your UFH:
Basic dial thermostat – Simple and cost-effective.
Programmable thermostat – Set schedules for different times of the day.
Touchscreen or app-controlled thermostat – For smart, remote control.
Wired thermostats – Usually require a 3-core and earth cable.
Wireless thermostats – Battery powered, reducing electrician costs.
- Installation Considerations
Insulation – Proper insulation below the system improves efficiency and reduces running costs.
Manifold location – Needs to be accessible for servicing.
Future maintenance – Quality installation now avoids problems later.
- Why Professional Design Matters
Every property is different. At Hydaheat Ltd, we:
Perform a full heat loss calculation to match system output to your needs.
Recommend the most efficient setup for your floor type, heat source, and lifestyle.
Offer complete supply and installation with expert aftercare.
Final Word
Choosing the right underfloor heating system isn’t just about picking a product — it’s about designing a tailored solution that
works perfectly for your home, now and in the future. Whether it’s a quick-to-install electric system for a small room, or a full
wet system for whole-house heating, Hydaheat Ltd has the expertise to guide you every step of the way.