Variable Injection Mixing Modules

Our best system for ultimate radiant heating

• Programmable: set the supply water temperature with outdoor reset for ultimate efficiency and comfort.
• Ultimate comfort: provides floor warming or room heating using an injection pump and one pump for each zone.
• A total package: all the required pumps, valves, wiring & controls for a zoned radiant floor heating system
• Compact and neat: all components neatly laid out in a single cabinet, simplifying maintenance & troubleshooting
• Can provide heating for up to five zones
• For systems up to 80,000 Btu/hr heating capacity per zone

Each module includes:

• One pump per zone plus one injection pump
• Programmable controller to set supply temperature 
• Attractive white finished cabinet that can be recessed or surface mounted 
• Controls for connection to standard thermostat signal (24VAC)
• TT connections for boiler/primary pump 
• Electrical cord for standard 120VAC power
• All connections are copper sweat (optional PEX or NPT available)
• Daily pump exerciser/cycle timer (programmable)

for compact & attractive installations

Can't decide?
Can't decide which of our radiant pump modules is right for you?  Check out our handy selection chart.

VSM
For radiant floor heating systems.

• Learn more: VSM brochure
• Typical application: contact Vortex 
• Installation instructions: contact Vortex
• 5 Zones:  contact Vortex

VSMX - with heat exchanger
With plate heat exchanger to separate the in-floor from the hot water source. Suitable for glycol or domestic hot water.

• Includes pump, brazed plate heat exchanger, pressure relief and pressure gauge. 
• Expansion tank and air vent not included.
• Learn more: VSMX brochure 
• Typical Application: contact Vortex
• Installation instructions: contact Vortex​