Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Navien
Head to Head
Potterton Assure 13 Heat
Potterton • 89.1%
Both Boilers
Available FREE through ECO4 scheme
Potterton Assure 13 Heat leads with 89.1% efficiency, providing better performance and energy savings.
Both Navien NCB-24LDWE and Potterton Assure 13 Heat 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
