these include; space heaters, wood burning stoves, water heaters, fireplaces, furnaces and gas central heating among others. the majority of them are really sensitive to motion. all of which is important for anyone wanting to effect the right tone of voice. yesterday was an incredibly busy evening. if they have more than one owner, chances are, they will want everyone to be in the same place at the same time. support the newer format and increase the performance even further. thank you for your continued participation! we saw some though in a dry river bed drinking through holes which they had made . 