I am a Realtor in Ottawa, Canada. I recently had a Home Inspector perform an inspection on behalf of a client. This is a multi level row house, actually 5 levels. You come in on the basement/powder room level up a few steps to the living room, then a few more steps to the kitchen/family room and dining room level, then a few more steps to the master bedroom level, then a few more steps to the main bath and two other bedrooms. The whole place used to heated with electric baseboard heat each with its own thermostat. A previous owner took out the baseboard heat in all rooms except the basement/entry level and the two bedrooms on the 5th level. They then installed a gas stove in the living room which heats the 2nd, 3rd and 4th levels simply by "hot air rising". Does this satisfy all codes and construction practices?