Each lot will be the subject of a separate allocation.

The services are regulated by unit and fixed prices.

Annual preventive maintenance, troubleshooting and maintenance under full warranty of individual devices:

individual heating with gas boiler,

d individual domestic hot water with gas boiler, gas bath heater, electric/solar water heater, heat pump and thermodynamic hot water tanks

Maintenance of heating and production facilities - Dtno

Maintenance of heating and production facilities - Dtse