Synenergi
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Plate I · Solid heat

Heat the building, not only the air.

Heating and cooling for logistics and industrial buildings – through the concrete floor, with heat pumps and a flow temperature below 26 °C. The slab becomes a thermal battery that keeps the heat indoors.

See how it worksDiscuss your building
AAir-borne heating · aero tempers
Aero temperWarmestunder the roofHeat leaves withthe airFloor stays coldHEAT ESCAPES WITH THE AIRhigh-temperature source: gas boiler · district heating
BSolid heat · Synenergi
Heat pump<26 °CEven warmth at floor levelAir still leaves –the heat stays in the slabTHE SLAB STORES THE HEATflow below 26 °C · reverse the heat pump to cool
HeatPipes in the slab (section)Low-temperature flowSame building, same open door · schematic
~80 %Energy savings for heating vs. traditional solutions – 70 % and 80 % in the two reference cases*
3–6 yrsTypical return on investment, depending on context*
<26 °CFlow temperature into the building
5Projects selected – retrofit and new build, in four countries

* As stated by Synenergi. Results depend on the building and on the system it is compared with.

Plate II · The principle

Two levers: lower temperature, longer storage.

Energy use for heating and cooling is in essence a function of the required system temperature and the thermal conservation of the building. Synenergi addresses both – with its own design, the latest technology and AI.

01

Reduce the system temperature

A very dense, self-regulated underfloor system with a high flow rate heats the building at below 26 °C – so bespoke heat pumps can run at a COP of 5 or higher.

02

Choose the heat source freely

Low temperature opens up heat pumps, geothermal energy, urban waste heat from data centres and sewers, solar thermal and low-temperature district heating.

03

Keep the heat inside

The floor works as a thermal battery. Ventilation, storage and indoor air quality are synchronised in real time, and AI optimises energy input against output.

The full solution
Plate III · Reference cases

A retrofit and a new build.

Synenergi is a young company but has already been selected for a broad range of projects. Two of them, in southern Sweden, as reported by Synenergi:

Office and warehouse building in Landskrona
Retrofit · Landskrona · office / warehouse
70 %energy saving*90 %lower CO₂*
Case details →
New logistics building with office
New build · Skurup · logistics centre / office
80 %energy saving*95 %lower CO₂*
Case details →

* Compared to traditional solutions, as stated by Synenergi.

Dense red underfloor pipes laid on reinforcement mesh before the concrete is poured
Pipe network before casting · Landskrona
Plate IV · Where it fits

Any building on a concrete slab.

The system works in new build and retrofit alike. The prime focus is logistics, industrial, commercial and military installations – it has also been installed in residential buildings.

  • Logistics
  • Industrial
  • Commercial
  • Military
  • Residential
Target markets
Plate V · Delivery

From feasibility study to after sales.

A structured, documented delivery process – with local engineering companies and contractors from the Heatnet Global network reinforcing the central Synenergi team.

  1. PreparationFeasibility, design, simulations, certification
  2. CommercialisationBusiness model, permits, financial plan
  3. DeliveryInstallation, commissioning, training, after sales
The delivery process
Installers in high-visibility vests on a floor covered with red heating pipes
Installation in progress
Plate VI · Next step

Discuss your building.

New build or retrofit – if the building stands on a concrete slab, we can look at what a low-temperature floor system would mean for its energy use, comfort and costs. Useful to mention: the size of the building, what it is used for and how it is heated today.

Synenergi is represented by Heatnet Global in all target markets.
Peter Anderberg, CEO · Heatnet Global

Contact usSee the references