These houses include the most popular options, Infrared Bulb, Square window, Door upgrade and Heated Pad NATURAL DUAL HEAT 1 DOOR $519.00 ULTIMATE/HT PAD/OAK&WALNUT/1 DOOR $519.00 LARGE ULTIMATE & PAD/OAK&WALNUT/1 DOOR $579.00 LARGE ULTIMATE/HTD PAD/WAL & RED $549.00 ULTIMATE/HTD PAD/RED & WALNUT $519.00 LG ULTIMATE/HTD PAD/BURGUNDY&BLUE $579.00 ULTIMATE/HEATED PAD/CEDAR LINING $579.00 ULTIMATE CEDAR/DUAL HEAT/1 DOOR