Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
GAH Heating Products
Head to Head
Hoval TopGas (30)
Hoval • 88.2%
Both Boilers
Available FREE through ECO4 scheme
Hoval TopGas (30) leads with 88.2% efficiency, providing better performance and energy savings.
Both GAH Heating Products 100/150 Select and Hoval TopGas (30) 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
