Well - they are dusty (for sure) and pound for pound may be more expensive than gas but we have one room that does not have a radiator and it does feel toasty in here. I believe we are going to get a battery backup incase we lose power.........
Fortunately no one who lives here has asthma but I can believe that would be an issue. The guys selling it to us had no clue and told us way too little -- but I think we are happy with the decision.....