Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Head to Head
Servowarm
Hoval TopGas (45)
Hoval • 88.0%
Both Boilers
Available FREE through ECO4 scheme
Hoval TopGas (45) offers superior efficiency at 88.0%, making it the better choice for long-term savings.
Both Hoval TopGas (45) and Servowarm Elite 21 Condensing Combination 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
