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Product code: S12435
Image shown for illustration purposes only.
View Large ImageCompact and lightweight, Sirius three WH condensing boilers are supplied with a stainless steel heat exchanger and offer a market-leading modulation ratio of 9:1. Supplied with weather compensation as standard to ensure high seasonal efficiency all year around. Available in 50, 60, 70, 90, 110, 130 and 150kW outputs offering up to 660kW with optional cascade pipework kits. 90kW model.