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German Made PAW Modular Hydronic Pump Stations are considered the leader in heating solutions with their patented modular distribution manifold. Now you can easily create multiple heating zone by simply dropping a pump station on to the manifold. No plumbing is required. Seamlessly integrates zones with different temperatures and flow rates into one complete system.

PAW equipment is built around centralized heating distribution system. All zones can share the same heat source whether this is a boiler, solar heating or a heat pump. The plug and play hydronic design allow customer to build one integrated solution to do hydronic heating loops, domestic hot water, fan coil radiators, pools/hot tubs and even snow melt zones.

home heating system

Modular Distribution Manifolds

Heating Distribution Diagram
The system relies on Modular Distribution Manifolds that allows pump stations to be hooked up in parallel to share a common heating supply’s such as a boiler, solar thermal or a heat pump. These manifolds come in 2,3,4,5 loop configurations and can be expanded past that. There manifolds share the supply and return manifolds from the heating sources on the bottom.



Heating Distribution Manifold for outputs up to 80 Kw per boiler connection

  • Completely made of brass
  • Completely pre-assembled
  • Completely insulated with high temp EPP foam
  • Extremely low resistance free flow
  • Up to 5 pre-assembled manifolds modules available
  • Multiple connection of heat sources such as gas boiler or wood fired boiler and Heat Pumps
  • Comes with wall bracket

Distribution Manifolds Diagram

Pump Station

PAW Hydronic Pump Station K32

The complete integrate pump station saves time on installation, allows for pump servicing and seamlessly integrates with the PAW Distribution Manifold for parallel installation of multiple heating circuits. 1” FPT allow you to attach to PEX or Copper pipe or use our Aurora Flex stainless steel piping for solder free connections. Accurate thermostats and brass ball valves add to the features of these pump stations.

PAW pump stations come in a variety of sizes and can accommodate systems sizing up to 34 Kw. The Grundfos variable speed pump is available in different sizes to match the flow requirements for each zone. By adding multiple pump station in parallel to the Modular Distribution Manual you can easily achieve a complete home heating solution for every zone requirement.


  • Full port ball valves for isolating the system
  • ¾”-1 ¼” compression fittings
  • Fully insulated housing made of EPP elastic foam
  • 100% insulation of fitting while allow air for pump to cool
  • Flow check valve in return pipe prevents anti siphoning when pump is off
  • Right or left supply are interchangeable to suit existing design
  • 100% brass components except for pump
  • Integrate accurate temperature gauges
  • Pump isolation also pump to be changes without draining system
  • Built in mixing valve to lower supply temperature for low temp heating
3 Pump Stations
K31 – High temperature Zone Heating with no mixing valve.  Ideal for all heating zones except hydronic.  1” NPT Connections.
PAW Hydronic Heating Pump Station K32
K32 – Hydronic heating Zone with electronic mixing valve. Ideal for any hydronic heating zone that requires mixing. Easily adapts to controllers with heating curve algorithms such as our Resol MX Controller to precisely maintain temperature control. 1” NPT Connections.
PAW Hydronic Heating Pump Station K33
K33- Similar to the K32 except the K33 has a thermostatic adjustable mixing valve. Simply set the output temperature for the zones and not have to worry about changing input temperatures. 1” NPT Connections.

Pump station



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