Complete technical details and performance specifications for the Ravenheat RSF 820/20
A J Wells and Sons
A O Smith
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The Ravenheat RSF 820/20 delivers exceptional performance with a 74.5% efficiency rating, making it one of the most energy-efficient heating solutions available.
This Combi boiler provides 23.6 - 23.6 (KW) of reliable heating power using Gas fuel for optimal performance.
Potential annual savings of £50-£200 compared to older, less efficient boilers, while reducing your carbon footprint.
Discover why the Ravenheat RSF 820/20 is the perfect heating solution for your home
74.5% efficiency rating delivers maximum energy savings and optimal performance
Save £50-£200 annually on energy bills compared to older, less efficient boilers
Trusted Ravenheat engineering with comprehensive warranty coverage
Built to last with modern condensing technology and premium components
Discover other high-efficiency boilers that might be perfect for your home
Advanced tools designed specifically for the Ravenheat RSF 820/20 to help you make informed decisions
Calculate specific savings with the Ravenheat RSF 820/20, including CO₂ reduction and payback period analysis.
Compare the Ravenheat RSF 820/20 against other boiler models with detailed specifications and performance metrics.
Check if you qualify for a free Ravenheat RSF 820/20 replacement through the government ECO4 scheme.
The Ravenheat RSF 820/20 with its 74.5% efficiency rating is available at no cost through the government ECO4 scheme. Professional installation included with potential savings of £50-£200 annually.
✓ Government Approved ECO4 ✓ Ravenheat Authorized ✓ 74.5% Efficiency Rated ✓ Professional Installation
