I bought mine about 10 years ago. Cant remember the size for approx same price. Good deal! Make sure to get both a propane orifice and a ng orifice. Ya never know what life brings down the road. For the $30-40 it's worth it.
Natural gas found output formula square footage x 60 wich puts me at 57,600 so I'll go with the 80000 which is output and Menards has it on sale for $400