With built-in ErP fully modulating pump.

With output sizes in 15kW, 18kW, 24kW, 32kW and 40kW, the compact casing of the iS range houses an outstandingly efficient boiler which offers excellent, low maintenance performance and is easy to install.

Furthermore, we have made these easy for homeowners to operate. With the addition of a 3 port valve kit, the iS system boilers can be controlled using either an ATAG ONE – our intelligent, internet connected programmer – or a 7 day two channel plug-in digital programmer. Speak to your TPM for more details.

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