Installing a gas boiler is quick and easy. But for a really satisfactory result, it is necessary to take into account some rules in its installation. Contacting a professional is therefore essential to ensure the optimum performance of your condensing system. The compulsory annual contract will preserve the performance of the boiler over time. Do not forget either that the installation is done within a very specific legal framework. To be covered by your insurance in the event of a malfunction, it is the expertise of your installer that will validate your reimbursements.