We have a 2000sq ft 2 story home, plus a small in-law house. We heat with a wood stove and supplement with oil. My moms in law suite is electric heat. Our biggest electric bill was in July with 3 ACs going, that was about $350. With my mom heating her space (400sq ft) with electric heat our bill is about $230-$250. When my husband is drying cannabis, it goes up again as the room needs to be kept at a cool and dry temp.