boiler installation

https://ace-wiki.win/index.php/When_to_Call_for_Furnace_Repair_and_What_to_Check_First

Once you decide on a new boiler, the installation day is a big event. A certified gas engineer will first drain the old system, carefully disconnect it, and haul it away. Then comes the tricky part of fitting the new boiler, which often involves modifying pipework and flues to match the new unit's specs. The whole job usually takes a full day, and it's pretty disruptive, with water off and some noise, but the relief of having a modern, efficient heater is worth the temporary hassle.