I say this is total garbage. That's 5 weeks away. Warranty work should have priority over new work. Somebody already bought a stove from you and paid you to install that stove. Now the stove has a problem. Waiting until December 28th to have it fixed is totally unacceptable. Sure, new jobs pay and warranty work does not, but when you sell a product with a warranty, you have to expect to keep time open or have the flexibility to honor those warranties in a timely fashion. If you are too busy to honor warranties, then you are too busy to accept new work. I would be out of business if I operated like this.