Indirect Kit
This indirect kit can be included with the Bock or Polaris heaters to separate the domestic water from the radiant heating water. The Indirect kit comes standard with a gauge, temperature and pressure relief valve, automatic air purging valve, expansion tank, 100,000 btu/hr heat exchanger, with brass fittings, fill valve, PEX adapters and a pump. We assemble it, mount it to a board and test it prior to shipment. All you do is hang it on the wall, connect your piping and plug the pump into the control panel outlet on your manifold assembly.
Below is an example of one of our board mounted manifold and control packages hooked up to an Indirect Kit. The heat source would sit off to the right of the Indirect Kit. Your radiant floor tubing would connect to your manifold on the left side and be distributed throughout the house. In this case, there are two places air could be purged from the radiant heating system, making the initial filling and purging of your system very easy.
