【High-Standard Heating System】This heated dog house upgrade the dog pad with heater,equipped with a 12V low-voltage heating system to controlled warmth well inside, meets high safety standards, keeps the dogs warm and cozy inside even when temperatures under 0°C. 【Machine-Washable】The insulated liner can move freely for machine-washable by take out the inner sponge. 【Strong & Durable】Our dog house made of all-around stronger iron frame durable than galvanized edge and the thickness of the panels is 0.47",stable enought prevent destroy from dogs.Anti a 180-pounds adult can easily sit on the roof ,durable enough. 【Weather & Water Resistant】Insulated dog house made of 100% nature Fir wood with security waterproof paint,raised floor with customized plastic waterproof feet pad & asphalt roof & high quality curtain provide protection from the elements and keep the cabin comfortable & dry. Perfect for indoor and outdoor use. 【Large Space】Oversize:33.5in(L)×22in(W)×25.2in(H),Internal size:28.5in(L)×18.1 in(W)×18.3in(H), Entrance size:16in(H)×10.2in(W). The space in the dog shelter is suitable for dogs up to 100 pounds. 【Easy To Assemble】Dog cage Simple tools, complete parts,each part is stamped separately , all the screw holes are aligned properly to be easy assemble.It only takes an adult within half an hour to assemble it. Aivituvin Heated Outdoor Dog House with Insulated Liner & Heating Pad Waterproof Dog Kennel for Winter Cat House for Small & Medium & Large Dogs,Cats,Unique All-Around Iron Frame