Skip to Content
  1. Products
  2. Heating System Controls

Heating System Controls

Sort By Sort By: Featured
301P

301P

Tekmar One Zone Switching Relay
$ 81.39
304P

304P

Tekmar Switching Relay Four Zones with Priority
$ 247.40
304V

304V

Tekmar Zone Valve Control Four Zones with Priority
$ 186.49
306P

306P

Tekmar Switching Relay Six Zones with Priority
$ 319.09
306V

306V

Tekmar Zone Valve Control Six Zones with Priority
$ 232.31
3WM1AHF020 Discontinued

3WM1AHF020

Watts Radiant 2 Circuit SS Manifold, Actuators, Zone Pump, Motorized Mix Valve
$ 4,514.69
3WM1AHF040 Discontinued

3WM1AHF040

Watts Radiant 4 Circuit SS Manifold, Actuators, Zone Pump, Motorized Mix Valve
$ 4,861.98
3WM1AHF050 Discontinued

3WM1AHF050

Watts Radiant 5 Circuit SS Manifold, Actuators, Zone Pump, Motorized Mix Valve
$ 5,526.40
3WM1AHF060 Discontinued

3WM1AHF060

Watts Radiant 6 Circuit SS Manifold, Actuators, Zone Pump, Motorized Mix Valve
$ 5,681.52
3WM1AHF070 Discontinued

3WM1AHF070

Watts Radiant 7 Circuit SS Manifold, Actuators, Zone Pump, Motorized Mix Valve
$ 5,788.28
3WM1AHF080 Discontinued

3WM1AHF080

Watts Radiant 8 Circuit SS Manifold, Actuators, Zone Pump, Motorized Mix Valve
$ 6,053.29
3WM1AHF090 Discontinued

3WM1AHF090

Watts Radiant 9 Circuit SS Manifold, Actuators, Zone Pump, Motorized Mix Valve
$ 6,987.76
3WM1AHF100 Discontinued

3WM1AHF100

Watts Radiant 10 Circuit SS Manifold, Actuators, Zone Pump, Motorized Mix Valve
$ 7,165.48
3WM1AHF110 Discontinued

3WM1AHF110

Watts Radiant 11 Circuit SS Manifold, Actuators, Zone Pump, Motorized Mix Valve
$ 7,287.94
3WM1AHF120 Discontinued

3WM1AHF120

Watts Radiant 12 Circuit SS Manifold, Actuators, Zone Pump, Motorized Mix Valve
$ 7,751.41
3WM1AST020 Discontinued

3WM1AST020

Watts Radiant 2 Circuit 1 in. SS Manifold, Actuators, 15-58 Zone Pump, Motorized Mix Valve
$ 4,410.45
3WM1AST030 Discontinued

3WM1AST030

Watts Radiant 3 Circuit 1 in. SS Manifold, Actuators, 15-58 Zone Pump, Motorized Mix Valve
$ 4,577.49
3WM1AST040 Discontinued

3WM1AST040

Watts Radiant 4 Circuit 1 in. SS Manifold, Actuators, 15-58 Zone Pump, Motorized Mix Valve
$ 4,746.42
3WM1AST050 Discontinued

3WM1AST050

Watts Radiant 5 Circuit 1 in. SS Manifold, Actuators, 15-58 Zone Pump, Motorized Mix Valve
$ 5,417.76
3WM1AST060 Discontinued

3WM1AST060

Watts Radiant 6 Circuit 1 in. SS Manifold, Actuators, 15-58 Zone Pump, Motorized Mix Valve
$ 5,584.18
3WM1AST070 Discontinued

3WM1AST070

Watts Radiant 7 Circuit 1 in. SS Manifold, Actuators, 15-58 Zone Pump, Motorized Mix Valve
$ 5,809.63
3WM1AST080 Discontinued

3WM1AST080

Watts Radiant 8 Circuit 1 in. SS Manifold, Actuators, 15-58 Zone Pump, Motorized Mix Valve
$ 5,853.59
3WM1AST090 Discontinued

3WM1AST090

Watts Radiant 9 Circuit 1 in. SS Manifold, Actuators, 15-58 Zone Pump, Motorized Mix Valve
$ 6,426.95
3WM1AST100 Discontinued

3WM1AST100

Watts Radiant 10 Circuit 1 in. SS Manifold, Actuators, 15-58 Zone Pump, Motorized Mix Valve
$ 7,066.89
3WM1AST110 Discontinued

3WM1AST110

Watts Radiant 11 Circuit 1 in. SS Manifold, Actuators, 15-58 Zone Pump, Motorized Mix Valve
$ 7,240.84
3WM1AST120 Discontinued

3WM1AST120

Watts Radiant 12 Circuit 1 in. SS Manifold, Actuators, 15-58 Zone Pump, Motorized Mix Valve
$ 7,389.05
3WM1NHF020 Discontinued

3WM1NHF020

Watts Radiant 2 Circuit 1 in. SS Manifold, Zone Pump, Motorized Mix Valve
$ 4,301.17
3WM1NHF030 Discontinued

3WM1NHF030

Watts Radiant 3 Circuit 1 in. SS Manifold, Zone Pump, Motorized Mix Valve
$ 4,377.16
3WM1NHF050 Discontinued

3WM1NHF050

Watts Radiant 5 Circuit 1 in. SS Manifold, Zone Pump, Motorized Mix Valve
$ 5,113.18
3WM1NHF060 Discontinued

3WM1NHF060

Watts Radiant 6 Circuit 1 in. SS Manifold, Zone Pump, Motorized Mix Valve
$ 5,206.12
3WM1NHF070 Discontinued

3WM1NHF070

Watts Radiant 7 Circuit 1 in. SS Manifold, Zone Pump, Motorized Mix Valve
$ 5,189.17
3WM1NHF080 Discontinued

3WM1NHF080

Watts Radiant 8 Circuit 1 in. SS Manifold, Zone Pump, Motorized Mix Valve
$ 5,395.15
3WM1NHF090 Discontinued

3WM1NHF090

Watts Radiant 9 Circuit 1 in. SS Manifold, Zone Pump, Motorized Mix Valve
$ 6,248.60
3WM1NHF100 Discontinued

3WM1NHF100

Watts Radiant 10 Circuit 1 in. SS Manifold, Zone Pump, Motorized Mix Valve
$ 6,369.18
3WM1NHF110 Discontinued

3WM1NHF110

Watts Radiant 11 Circuit 1 in. SS Manifold, Zone Pump, Motorized Mix Valve
$ 6,410.00
3WM1NHF120 Discontinued

3WM1NHF120

Watts Radiant 12 Circuit 1 in. SS Manifold, Zone Pump, Motorized Mix Valve
$ 6,815.06
3WM1NST020 Discontinued

3WM1NST020

Watts Radiant 2 Circuit 1 in. SS Manifold, 15-58 Zone Pump, Motorized Mix Valve
$ 4,196.93
3WM1NST030 Discontinued

3WM1NST030

Watts Radiant 3 Circuit 1 in. SS Manifold, 15-58 Zone Pump, Motorized Mix Valve
$ 4,301.17
3WM1NST040 Discontinued

3WM1NST040

Watts Radiant 4 Circuit 1 in. SS Manifold, 15-58 Zone Pump, Motorized Mix Valve
$ 4,410.45
3WM1NST050 Discontinued

3WM1NST050

Watts Radiant 5 Circuit 1 in. SS Manifold, 15-58 Zone Pump, Motorized Mix Valve
$ 4,759.61
3WM1NST060 Discontinued

3WM1NST060

Watts Radiant 6 Circuit 1 in. SS Manifold, 15-58 Zone Pump, Motorized Mix Valve
$ 5,108.15
3WM1NST070 Discontinued

3WM1NST070

Watts Radiant 7 Circuit 1 in. SS Manifold, 15-58 Zone Pump, Motorized Mix Valve
$ 5,213.66
3WM1NST080 Discontinued

3WM1NST080

Watts Radiant 8 Circuit 1 in. SS Manifold, 15-58 Zone Pump, Motorized Mix Valve
$ 5,323.56
3WM1NST090 Discontinued

3WM1NST090

Watts Radiant 9 Circuit 1 in. SS Manifold, 15-58 Zone Pump, Motorized Mix Valve
$ 6,178.26
3WM1NST100 Discontinued

3WM1NST100

Watts Radiant 10 Circuit 1 in. SS Manifold, 15-58 Zone Pump, Motorized Mix Valve
$ 6,266.81
3WM1NST110 Discontinued

3WM1NST110

Watts Radiant 11 Circuit 1 in. SS Manifold, 15-58 Zone Pump, Motorized Mix Valve
$ 6,362.27
3WM1NST120 Discontinued

3WM1NST120

Watts Radiant 12 Circuit 1 in. SS Manifold, 15-58 Zone Pump, Motorized Mix Valve
$ 6,453.96
3WM2AHF020 Discontinued

3WM2AHF020

Watts Radiant 2 Circuit Hi-Flow Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 5,108.15
3WM2AHF030 Discontinued

3WM2AHF030

Watts Radiant 3 Circuit Hi-Flow Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 5,246.94
3WM2AHF040 Discontinued

3WM2AHF040

Watts Radiant 4 Circuit Hi-Flow Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 5,454.81
3WM2AHF050 Discontinued

3WM2AHF050

Watts Radiant 5 Circuit Hi-Flow Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 6,119.86
3WM2AHF060 Discontinued

3WM2AHF060

Watts Radiant 6 Circuit Hi-Flow Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 6,278.74
3WM2AHF070 Discontinued

3WM2AHF070

Watts Radiant 7 Circuit Hi-Flow Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 6,379.22
3WM2AHF080 Discontinued

3WM2AHF080

Watts Radiant 8 Circuit Hi-Flow Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 6,649.26
3WM2AHF090 Discontinued

3WM2AHF090

Watts Radiant 9 Circuit Hi-Flow Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 7,581.85
3WM2AHF100 Discontinued

3WM2AHF100

Watts Radiant 10 Circuit Hi-Flow Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 7,758.94
3WM2AHF110 Discontinued

3WM2AHF110

Watts Radiant 11 Circuit Hi-Flow Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 7,882.03
3WM2AHF120 Discontinued

3WM2AHF120

Watts Radiant 12 Circuit Hi-Flow Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 8,344.24
3WM2AST020 Discontinued

3WM2AST020

Watts Radiant 2 Circuit 1 in. SS Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 5,005.79
3WM2AST030 Discontinued

3WM2AST030

Watts Radiant 3 Circuit 1 in. SS Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 5,172.21
3WM2AST040 Discontinued

3WM2AST040

Watts Radiant 4 Circuit 1 in. SS Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 5,339.89
3WM2AST050 Discontinued

3WM2AST050

Watts Radiant 5 Circuit 1 in. SS Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 6,013.10
3WM2AST060 Discontinued

3WM2AST060

Watts Radiant 6 Circuit 1 in. SS Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 6,177.01
3WM2AST070 Discontinued

3WM2AST070

Watts Radiant 7 Circuit 1 in. SS Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 6,406.86
3WM2AST080 Discontinued

3WM2AST080

Watts Radiant 8 Circuit 1 in. SS Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 6,443.28
3WM2AST090 Discontinued

3WM2AST090

Watts Radiant 9 Circuit 1 in. SS Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 7,510.25
3WM2AST100 Discontinued

3WM2AST100

Watts Radiant 10 Circuit 1 in. SS Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 7,662.86
3WM2AST110 Discontinued

3WM2AST110

Watts Radiant 11 Circuit 1 in. SS Manifold, Actuators, 25-99 Zone Pump, Motorized Mix Valve
$ 7,834.93
3WM2NHF020 Discontinued

3WM2NHF020

Watts Radiant 2 Circuit Hi-Flow Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 4,896.52
3WM2NHF030 Discontinued

3WM2NHF030

Watts Radiant 3 Circuit Hi-Flow Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 4,971.25
3WM2NHF040 Discontinued

3WM2NHF040

Watts Radiant 4 Circuit Hi-Flow Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 5,341.14
3WM2NHF050 Discontinued

3WM2NHF050

Watts Radiant 5 Circuit Hi-Flow Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 5,709.78
3WM2NHF060 Discontinued

3WM2NHF060

Watts Radiant 6 Circuit Hi-Flow Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 5,798.33
3WM2NHF070 Discontinued

3WM2NHF070

Watts Radiant 7 Circuit Hi-Flow Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 5,785.14
3WM2NHF080 Discontinued

3WM2NHF080

Watts Radiant 8 Circuit Hi-Flow Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 5,990.49
3WM2NHF090 Discontinued

3WM2NHF090

Watts Radiant 9 Circuit Hi-Flow Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 6,842.06
3WM2NHF100 Discontinued

3WM2NHF100

Watts Radiant 10 Circuit Hi-Flow Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 6,962.64
3WM2NHF110 Discontinued

3WM2NHF110

Watts Radiant 11 Circuit Hi-Flow Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 7,005.34
3WM2NHF120 Discontinued

3WM2NHF120

Watts Radiant 12 Circuit Hi-Flow Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 7,035.49
3WM2NST020 Discontinued

3WM2NST020

Watts Radiant 2 Circuit 1 in. SS Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 4,789.76
3WM2NST030 Discontinued

3WM2NST030

Watts Radiant 3 Circuit 1 in. SS Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 4,896.52
3WM2NST040 Discontinued

3WM2NST040

Watts Radiant 4 Circuit 1 in. SS Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 5,005.79
3WM2NST050 Discontinued

3WM2NST050

Watts Radiant 5 Circuit 1 in. SS Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 5,598.62
3WM2NST060 Discontinued

3WM2NST060

Watts Radiant 6 Circuit 1 in. SS Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 5,704.75
3WM2NST070 Discontinued

3WM2NST070

Watts Radiant 7 Circuit 1 in. SS Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 5,807.74
3WM2NST080 Discontinued

3WM2NST080

Watts Radiant 8 Circuit 1 in. SS Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 5,917.65
3WM2NST090 Discontinued

3WM2NST090

Watts Radiant 9 Circuit 1 in. SS Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 6,391.16
3WM2NST100 Discontinued

3WM2NST100

Watts Radiant 10 Circuit 1 in. SS Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 6,863.41
3WM2NST110 Discontinued

3WM2NST110

Watts Radiant 11 Circuit 1 in. SS Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 6,956.98
3WM2NST120 Discontinued

3WM2NST120

Watts Radiant 12 Circuit 1 in. SS Manifold, 25-99 Zone Pump, Motorized Mix Valve
$ 7,046.16
529912

529912

Grundfos 3/4 in. Half-Union Threaded End for Domestic Recirculators, Pair
$ 58.10
535051A

535051A

Caleffi AutoFill 3/4 in. Union NPT w/ Pressure Gauge (Commercial Applications)
$ 136.71
548006A

548006A

Caleffi Hydroseparator 1 in. NPT Union
$ 457.91
548007A

548007A

Caleffi Hydroseparator 1-1/4 in. NPT Union
$ 549.78
548008A

548008A

Caleffi Hydroseparator 1-1/2 in. NPT Union
$ 720.30
548009A

548009A

Caleffi Hydroseparator 2 in. NPT Union
$ 839.37
548052A

548052A

Caleffi Hydroseparator 2 in. Flanged
$ 3,269.28
548062A

548062A

Caleffi Hydroseparator 2 1/2 in. Flanged
$ 3,480.96
548082A

548082A

Caleffi Hydroseparator 3 in. Flanged
$ 4,357.08
548102A

548102A

Caleffi Hydroseparator 4 in. Flanged
$ 4,875.26