🌡️ Illinois HVAC Efficiency Calculator

Compare heating and cooling system upgrades for Illinois homes. Calculate savings from heat pumps, high-efficiency furnaces, and geothermal systems with ComEd/Ameren rebates and federal tax credits.

Your Home & Current System

Total conditioned area

New System Options

Additional Upgrades

<div style="background: #fef2f2; border: 2px solid #dc2626; padding: 20px; border-radius: 8px; margin: 40px 0; text-align: center;"> <p style="font-size: 16px; font-weight: bold; font-style: italic; color: #dc2626; margin-bottom: 15px;"> ⚠️ IMPORTANT DISCLAIMER: Projected figures based on publicly available information as of July 2025 and subject to change. Do NOT rely on these financial projections alone, for updated and accurate data be sure and book a free consult with an Illinois Power Savings / Illinois Shines Program professional by clicking here right now. </p> <a href="https://api.leadconnectorhq.com/widget/booking/3aEEpkkNI3zvQcz2Lk4c" target="_blank" rel="noopener" style="display: inline-block; background: #dc2626; color: white; padding: 12px 24px; border-radius: 6px; text-decoration: none; font-weight: bold; font-size: 16px;"> Book Free Professional Consultation → </a> </div>