Tesy a fost infiintata initial in 1990 sub numele de Ficosota. In 991 a aparut si compania TErmoSYstem si marca TESY. Incepand cu 1997 a inceput expansiunea extrerna a Tesy in afara Bulgariei.

Puffer 2 serpentine V15/9S2 2000
9.962,68 RON 10.829,00 RON
Puffer 2 serpentine V15/7S2 500
3.619,41 RON 3.934,14 RON
Puffer V500 75 F42 P4
2.704,16 RON 2.939,30 RON
Boiler electric BelliSlimo Lite 50
1.556,52 RON 1.659,90 RON
Boiler electric BelliSlimo Lite 80
1.677,90 RON 1.789,90 RON