retrofit pellet stove into fireplace?

[Grateful11]

Here's a Insert Pellet Stove.
http://www.northerntool.com/shop/tools/p..._200578242

I'm surprised someone can heat a home for $1 a day. Most people I know that have them are pushing $3-6 per day with Pellets pushing $5-6 a bag around here.

It takes about a bag of these per day @ $5.49/bag.
http://www.tractorsupply.com/en/store/wo...lets-40-lb