Heliodyne
Helio-Pak Heat Transfer Appliance (CLOSED LOOP)

The Helio-Pak (HPAK) is an all-in-one heat-transfer appliance assembly, specifically designed to simplify solar hot water systems and provide maximum heat transfer. The HPAK comes factory assembled and wired with all necessary components, making installation a trouble-free experience. A major benefit the Helio-Pak provides is that it attaches directly onto the hot water tank. As a result, under certain conditions, the HPAK can be mounted onto a pre-existing water tank, thereby reducing costs. This is a feature no other solar hot water heat-exchanger on the market can offer.

Note: This appliance cannot be used with existing gas or propane heaters, unless they have an electrical ignition! If the gas heater has an electric ignition, then the Helio-Pak PRO appliance can be used.

Features

• Augmented heat exchanger surface promotes maximum heat generation
• Superior heat transfer via unique counterflow design
• No new tank needed; mounts to existing tank
• “Plug & Play” installation
• Viewable heat exchanger leak detection
• Several sizes available for differing loads

The Helio-Pak comes assembled with:
• Double-wall external heat exchanger with leak detection
• Delta-T controller w/ sensors
• Pressure relief valve
• Expansion tank
• Pressure gauge
• 2 combo valves 1 check valve, 1 ball valve, and 1 thermometer
• 2 Pumps

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¹ - At full sun and 20° log mean temperature differential
² - With max collector surface area installed
³ - With recommended pump speed