Insulation Score: ${insulationScore}

Surface Area: ${area} m²

Temperature Difference: ${tempDiff} °C

Calculated U-Value: ${uValue.toFixed(2)} W/m²·K

Estimated Heat Loss Rate: ${heatLossRate.toFixed(2)} Watts

`; document.getElementById("heatLossOutput").innerHTML = output; document.getElementById("heatLossResult").style.display = "block"; } document.addEventListener("DOMContentLoaded", function () { const { jsPDF } = window.jspdf; document.getElementById("downloadHeatLossPdf").addEventListener("click", function () { const doc = new jsPDF({ orientation: "portrait", unit: "mm", format: "a4" }); doc.setFontSize(16); doc.text("Heat Loss Rate Calculation Report", 10, 20); const content = document.getElementById("heatLossOutput").innerText; const lines = doc.splitTextToSize(content, 180); doc.setFontSize(12); doc.text(lines, 10, 35); doc.save("heat_loss_rate_estimate.pdf"); }); });