About Thermolys
One season, one question
How do you stay warm through winter without spending a month's salary, and without sitting in the dark if the grid goes down.
Thermolys brings together the six product families that answer it: heat pumps and thermodynamic water heaters, wood and pellet heating, infrared panels for rooms central heating never reaches, batteries that take over when the power stops, solar with home storage, and premium reversible air conditioning that cools in summer and heats in the shoulder season.
Why one shop
Because a household often combines two of these: a heat pump for the main system and a stove for backup.
In your language
This site is written in French, Dutch, German and English — written in each language, not machine-translated.
The installer network
A heat pump or boiler installed by a registered professional qualifies for the regional premium. Since 2026 the Belgian 6 % VAT rate applies to heat pumps whatever the age of the home, but only where the appliance and the installation appear on a single invoice from the same contractor.