I bought an HP61 stove with the piping kit. I had to order more piping because there wasn't enough in the kit. Make sure you measure before your order piping because piping cannot be returned. I have the black piping which can be a little tricky to work with. You definitley need 2 people to lock the pipes together. The stove works as described. It heats the house really well. Easy start up process. I did have one problem. I had a pellet stove previously and know when and how to thoroghly clean it out. The screws that hold the side heat shields are tricky to remove in order to clean the ash behind them. One of the screws stripped in the process of removing it. I somehow was able to maneuver the one heat shield out and get it back in. Will have to replace that screw at some point.