🌡️ 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 program discounts.

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 are based on public program information, utility assumptions, and market conditions and are subject to change. Do NOT rely on these projections alone. For updated Illinois Shines, rebate, ownership, and PPA information, please book a free consultation. </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>