Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Express
Head to Head
Main 12 Heat ErP
Main • 88.7%
Both Boilers
Available FREE through ECO4 scheme
Main 12 Heat ErP leads with 88.7% efficiency, providing better performance and energy savings.
Both Express BC 28 Combi and Main 12 Heat ErP are available at no cost through the government ECO4 scheme. Take the next step today.
✓ Government Approved Scheme ✓ No Hidden Costs ✓ Professional Installation ✓ Energy Efficient
