Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Head to Head
Quantum
British Gas 330
British Gas • 89.7%
Both Boilers
Available FREE through ECO4 scheme
British Gas 330 offers superior efficiency at 89.7%, making it the better choice for long-term savings.
Both British Gas 330 and Quantum DB System Boiler 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
