Ravenheat Boiler Review

Ravenheat offers a reliable and affordable range of high-efficiency combination boilers that heat water directly from the mains supply on demand, eliminating the need for separate hot-water cylinders or cold-water storage tanks and making them an ideal space-saving solution for modern UK homes. Manufactured to rigorous British quality and environmental standards, Ravenheat combi boilers consistently achieve over 90% efficiency under the SEDBUK (Seasonal Efficiency in Domestic Boilers) scheme, reducing gas consumption, lowering energy bills and helping homeowners minimise their carbon footprint by curbing CO₂ and NOₓ emissions. Energy outputs span from 24 kW to 35 kW, with flow rates ranging between 10 litres per minute and 17 litres per minute to ensure reliable hot-water delivery even during peak demand. The product lineup includes the CSI 85 (24 kW, 10 l/min), CSI 120 (28 kW, 12 l/min) and CSI 150 (35 kW, 17 l/min) models, as well as the HE 85 (24 kW, 10 l/min) with an intuitive digital display and enhanced controls, and the HE 120T (28 kW, 12 l/min) which adds built-in time and temperature programming. All units feature compact dimensions (approximately 700 mm tall × 390 mm wide × 290 mm deep) that allow installation in kitchens, utility rooms or airing cupboards, while frost-protection and weather-compensation options maintain consistent performance year-round. Advanced heat-exchanger materials and low-NOx burner technology ensure longevity, reduced maintenance requirements and full compliance with upcoming eco-design regulations. Operating noise stays below 45 dB—quieter than an ordinary conversation—so household comfort is never compromised. Installation is straightforward thanks to standardised pipe-and-flue connections, making it a cost-effective choice for Gas Safe-registered engineers and minimising downtime. Ravenheat boilers come with up to a ten-year parts and labour warranty when serviced annually, backed by UK-based customer support and a nationwide replacement-parts network. By combining cutting-edge efficiency, environmental responsibility and budget-friendly pricing, Ravenheat combi boilers deliver dependable central heating and instant hot water, helping households manage running costs, improve EPC ratings and drive down carbon emissions.