Best or better heated Large dog house

I have a large pup (Heeler). Where I live, it gets cold and snows. So I need to get him an outdoor heated doghouse for daytime while I’m at work. I’ve seen a couple and can’t decided. They are pricey, so I hope it’s great for my pup. Any suggests help!

https://www.chewy.com/dog-palace-insulated-heated-dog-house/dp/290392

https://www.tractorsupply.com/tsc/product/aivituvin-heated-large-wooden-dog-house-with-metal-frame-6052197