Radiator / BTU Calculator:Amazon.com:Appstore for Android
Pictorial: Cast Iron Radiator Sizing Charts, BTU Output | Stoker Coal Boilers Using Anthracite | Coalpail.com Forum
Gibbs & Dandy on Twitter: "♨️ It's time to get toasty! That means you'll need to know your radiators' output to ensure all rooms can warm up properly this winter. 📐 Measure