If you are planning to put your house up for sale, then we can also provide inspection services as we are licensed and also experienced in this field. Your potential buyers might want to see the inspection report and if it says that the furnace is working fine, then they will be satisfied with it and buy your house without any further inspection hassle. But if you inspect your house with someone who works as a whole house inspector, then that  person might not get into the details and do a superficial check.