There are two options for service kits for RHC units available depending on the model of the unit: SK-RHC-PACK-Ahttps://www.reznor.co.uk/product-category/spares/flue-and-accessories/service-kits/ SK-RHC-PACK-Bhttps://www.reznor.co.uk/product-category/spares/flue-and-accessories/service-kits/
Is there a service kit available for RHC units?
General technical information about Reznor's products