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Over the last few weeks our Monday Morning Minutes posts have looked at pumping issues with parallel, Read More…

There are two basic types of glycol protection available for your closed-loop HVAC system: “burst protection” Read More…

Laars Heating Systems announces the inclusion of parts photos in the Laars Parts ID portal! The Read More…

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During the 50 year history of McKenna Heating & Cooling we have come to know R. L. Deppmann as a reliable and trusted supplier. Whether it be with engineering assistance or getting that hard to find part, R. L. Deppmann has always been there to to help.

–McKenna Heating & Cooling