Well, my massive 78 dodge is now a rolling sauna if need be. Tested this in 15 degrees (59F) and after 30 minutes had it up to 39 C (102F) inside. Remember, that's without humidity. Just damn hot. I WILL say it smells a bit like plastic on it's highest speed even after a month. Solution? Put a scented candle anywhere near an outlet and let the heat wick off the scent. It'll melt the top inch of the candle easily.Being such a large heater, I'd think a 5Kw would do the trick vs this one. My only issue is that when it's on it's LOWEST setting it still puts too much heat out if it's above 10 degrees outside. Mid-winter I won't be complaining one bit.So you're wondering? Yeah, for this money, just buy the damn thing.