I think you would be happy with a Honda choice, IMO, they are quiet (especially those suitcase gen's) they are dependable as all git out. You could put two chairs side by side and put that between the chairs and still be able to carry on a conversation with the person next to you, example as to how quiet they are.
I have had mine for 8 years or so and it never let's me down. I don't know what kind of heater/s you're running but it should do fine.
Funny I didn't,t see that one while searching Kijiji last night.