I hear that Mr. Cool is a good DIY heat-pump option. The refrigerant is "precharged" / included (i.e. you don't have to mess with refrigerant). https://mrcool.c

I hear that Mr. Cool is a good DIY heat-pump option. The refrigerant is "precharged" / included (i.e. you don't have to mess with refrigerant). https://mrcool.com/diy-4th-generation/ https://mrcool.com/diy-4th-generation/