After 40 yrs of burning wood I am preparing to purchase my 1st pellet stove. Narrowed choices to a 2010 Accentra with 1 1/2 yrs usage that includes a nice tiled hearth & all the piping one could possibly need for $1900. Or a new Castle Serenity for $1000. From what I've read,(@wiseheat.com) the Accentra may not operate properly when having to always be run on a very low setting becuz my home is small.(barely1500 sq') The site also claimed that parts have to be replaced quite often-some of them 2-3 times,that the stove is overly noisy,and Harman is near impossible to get in touch with.Since Harman makes top-of- the-line stoves I find all this negativity disturbing.As for the Serenity,not one bad review to be found.Husband passed last yr, seriously need help with this important decision.Which do I buy, the 400lb. cast iron unit or the180lb.one?