Resol DeltaSol™ series solar heating and hydronic controllers cover the whole spectrum starting from a simple differential controller up to a two circuit solar controller with VBus® output.

Currently active in over 1.5 million solar heating systems, when you use Resol, you are using the best technology available. Put together with PAW-brand Solar Stations and Hydronic Zone Modules (click for more info on PAW stations), these products represent a new standard for the North American solar thermal and hot water industry.

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