Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Head to Head
Thorn EMI Heating
Navien NCB-24LDWE
Navien • 89.0%
Both Boilers
Available FREE through ECO4 scheme
Navien NCB-24LDWE offers superior efficiency at 89.0%, making it the better choice for long-term savings.
Both Navien NCB-24LDWE and Thorn EMI Heating Apollo 15/30c 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
