Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Chaffoteaux
Head to Head
Thorn EMI Heating
Chaffoteaux Challenger 30ff
Chaffoteaux • 72.0%
Both Boilers
Available FREE through ECO4 scheme
Chaffoteaux Challenger 30ff offers superior efficiency at 72.0%, making it the better choice for long-term savings.
Both Chaffoteaux Challenger 30ff and Thorn EMI Heating Apollo 30/50b 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
