currently have a heat pump for heat which eats up a lot of electricity in the winter. I am considering a pellet furnace like the A Maize ing Heat corn/pellet furnace. I see the pf 120 was a good furnace but arent in production anymore. I did find a new one leftover on ebay for sale but wanted to see if anyone has had any luck with the amaizing heat furnace. House is about 3000 sf redone farmhouse, does have some leaky windows but not too bad. Any suggestions??? any other brands i should be looking at? Thanks!!