WaterPak is a hydronic heating coil that can be added onto the company's standard air conditioning systems. The WaterPak hydronic heating coil unit can be mounted onto the air handler unit in both new and existing installations. The system comes in three sizes with capacities of 60,000, 90,000, as well as 120,000 Btu. It can be used for a supplement to baseboard radiant heating, but also as a primary heating source. It is equipped with a purge plug to remove trapped air in the piping system as well as a drain plug for water removal during maintenance or extended shutdown. The plugs are conveniently located so they can be removed without removing panels, said the company.

SpacePak, 260 North Elm St., Westfield, MA 01085; 800-465-8558; www.spacepak.com

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