i currentlly have american harvester. i have a 2300sqft home, the american harvester is rated at 1200sq ft. it does a good job at heating up a portion of my 2 story home, however with a newborn baby the up stairs is not getting warm enough (63). so one of my bright ideas is to get rid of my stove and get one that will heat more sqft. when they rate how much sq ft a stove can produce, is this a accurate number, or just letting the consumer pick one that may or may not heat up the suggested area???? any help would be nice.