DIY Underfloor Heating: Now Truly Within Everyone’s Reach
DIY Underfloor Heating: Now Truly Within Everyone’s Reach

DIY Underfloor Heating: Now Truly Within Everyone’s Reach

When it comes to renovation, many immediately think of demolitions, dust, sky-high estimates, and weeks of construction work. But today, there is a different way to experience comfort: underfloor heating without complications.
With ThermalTT, it is now possible.

The ThermalTT Revolution with the PVSI System

The company has developed the PVSI system, designed for those who want to install a warm and welcoming floor by themselves. Simply lay the mats over the existing floor, add a floating covering (such as laminate or click-lock parquet), and in just a few hours your home will be transformed — no workers and no cost surprises.

How the PVSI ThermalTT System Works

The rolls are delivered custom-made, ready to install, and complete with pre-wired cables. No expensive leveling compounds or extra accessories are needed — everything is designed to make installation simple and fast. The process follows three clear steps:

  • Clean the existing floor.
  • Lay the PVSI heating rolls.
  • Install the new floating floor on top.
PVSI ThermalTT System Installation

If you have a photovoltaic system — or are planning to install one — using the energy produced for heating is an additional economic advantage. All you need to do is connect it to the existing electrical system to start saving on your electricity bill.

Would you like to connect it to your home automation system?
Then the only part that may require an electrician is the final connection, but the rest is within anyone’s reach. It’s a solution that combines professionalism and simplicity, suitable for both technicians and DIY enthusiasts.

Costs: PVSI vs. Other Systems

The ThermalTT PVSI system is almost always available on the market at prices below €100/m². To this, you simply add the cost of the floating floor, which is easily found for under €20/m². In practice, renovating a 20 m² living room could cost around €1,820 in total — a quick project, without builders and without weeks of construction.
When compared with other systems, the difference is clear. A traditional hydraulic underfloor system can exceed €250/m² and requires demolitions and long installation times. Competitors offering more energy-hungry electric systems (130 W/m² vs. PVSI’s 80 W/m²) often require leveling membranes, further increasing costs.

Calculate Your Project in Seconds

Curious to know how much installing PVSI would really cost? Enter the room size and the price of the floating floor you have in mind — you’ll instantly get your personalized estimate.


Your Project

Here are the details you entered:

  • Surface
  • PVSI Price
  • Laminate Price
Result

Here’s the estimate of the total cost:

  • PVSI Mat Only
  • Laminate Only
  • Total

This is a simulation: the final price depends on the choice of materials and the exact surface area. To get a detailed quote, simply send us the floor plan of your home — you’ll receive a tailored evaluation.

A Concrete Example of Savings

Let’s consider a 15 m² room.
The installation costs with PVSI would be around €1,365 (about €1,665 including the laminate), while a hydraulic system would cost more than €3,500 — not including maintenance and long installation times.

Now let’s look at energy consumption.
With the PVSI system, about 1,200 W/h total are required. With the thermostat set to 20°C, the heating runs on average 6 hours a day intermittently: comfort is guaranteed and energy consumption remains low.
A competing mat, on the other hand, would require 1,950 W/h, i.e. over 60% more.

Why PVSI Is Different

PVSI’s real strength is not just in the numbers but in its approach. With this system, there are no demolitions, screeds, or endless construction sites: the integrated mat simplifies everything and makes comfort — once considered a luxury — accessible to everyone.

An Investment That Lasts Over Time

PVSI is built with ThermalTT’s patented carbon fiber technology, a material that does not oxidize, does not deteriorate, and maintains its performance for decades. It requires no maintenance and is covered by a warranty of up to 20 years, confirming its reliability.

Conclusion: Comfort Becomes Accessible to Everyone

With the ThermalTT PVSI system, underfloor heating is no longer a luxury — it becomes a practical, affordable solution that anyone can manage. Low costs, reduced consumption, and easy installation: that’s why more and more people are choosing this technology to upgrade their spaces.

If you want to know exactly how much it would cost for your home, send us the floor plan of your rooms: you will receive a customized, no-obligation quote. With ThermalTT, radiant floor heating is truly within everyone’s reach.

Do you have a project in mind
and want some advice?

Contact us