Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Head to Head
NST
Hoval TopGas (35)
Hoval • 88.0%
Both Boilers
Available FREE through ECO4 scheme
Hoval TopGas (35) offers superior efficiency at 88.0%, making it the better choice for long-term savings.
Both Hoval TopGas (35) and NST Sogno ELI 8-26 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
