I had it in a sunroom that measures about 10 x 12', am very happy to be rid of it, and now have a very nice 35-dollar DeLonghi 1500 watt, ceramic technology, space heater from Lowe's, which so far has been much much better........no smelly Rinnai propane heated air to be breathing.........pull the plug and it is definately OFF .......... thankyou and goodnight everyone!
