Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Fonderie Sime
Head to Head
Optia
Fonderie Sime MURELLE PRO HE 35 MkII
Fonderie Sime • 89.0%
Both Boilers
Available FREE through ECO4 scheme
Fonderie Sime MURELLE PRO HE 35 MkII offers superior efficiency at 89.0%, making it the better choice for long-term savings.
Both Fonderie Sime MURELLE PRO HE 35 MkII and Optia FF30 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
