You've finally finished the living room. New sofa, fresh paint, and one big empty wall that's been bugging you for weeks. Then somebody says, "You know what that wall needs? A fireplace." And that's how you end up reading about modern fireplaces at 11 pm with flue diagrams open in four tabs. Fair warning. The good ones look fantastic. But looks and heat aren't the same thing, and some choices get painful to undo once the plasterboard's up. I'll run through the fuel types, wha
