Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Gerkros
Head to Head
ROC L1GB37-B40CP
ROC • 89.1%
Both Boilers
Available FREE through ECO4 scheme
ROC L1GB37-B40CP leads with 89.1% efficiency, providing better performance and energy savings.
Both Gerkros 14.6 – 20.5 kW Oil Condensing Combi Boiler and ROC L1GB37-B40CP 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
