The Service Involves The Delivery, Replacement And Commissioning Of Class 5 Central Heating Boilers With A Capacity Of 12 Kw Along With Circulation Pumps, The Purchase And Installation Of A Carbon Monoxide Sensor, Furnace Sheets And The Necessary Installation Equipment, Dismantling And Disposal Of The Boilers, And Carrying Out Associated And Cleaning Works Related To The Execution Of The Order.