Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Head to Head
Merlin
Grant Combi 90 Mk II
Grant • 83.9%
Both Boilers
Available FREE through ECO4 scheme
Grant Combi 90 Mk II offers superior efficiency at 83.9%, making it the better choice for long-term savings.
Both Grant Combi 90 Mk II and Merlin 100/150 BF 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
