Home Heating & Cooling: Controls & Circuit Boards
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29,535 results
ESBE 3-Way Mixer VRG131 and Actuator ARA661 Set DN25 IG Pump Group
BusinessEUR 159.97or Best OfferEUR 15.99 postage106 soldViessmann Tetramatic PCB Board VI7401477 HOT WATER Control Unit SPR/T #1
BusinessEUR 179.90or Best OfferEUR 10.00 postageBuderus Ecomatic 4000 Mac FMEC 05013420 HS 4201 Control Control Display
BusinessEUR 319.90or Best OfferEUR 10.00 postageNew listingThermostatkopf Heizkörper Regler Thermostat Kopf Heizung Ventil 1,5 x M30 L4F9
BusinessEUR 8.97or Best OfferFree postageNew listingThermostatkopf Heizkörper Regler Thermostat Kopf Heizung Ventil 1,5 x M30 T8A3
BusinessEUR 8.97or Best OfferFree postageUnderfloor heating control terminal strip 8-10 zone actuator thermostat complete set
BusinessEUR 8.49 to EUR 45.95EUR 6.00 postage184 soldTEMPERATURE CONTROLLER DIN hat rail digital thermostat sensor 150°C 20A 230V 12V 24V
BusinessEUR 36.95 to EUR 45.99EUR 6.00 postage938 soldDIVING SLEEVE stainless steel 1/2" 30 to 400mm temperature sensor protective pipe 6mm
BusinessEUR 3.45 to EUR 12.99EUR 6.00 postage194 soldVaillant 0020035401 Steuerung Baugruppe Leiterplatte Platine PCB überarbeitet
BusinessEUR 139.00EUR 18.00 postage55 soldBuderus external sensor Ecomatic Logamatic 2000 4000 5991374 / 5991372 / 7747026229
BusinessEUR 8.49EUR 3.59 postage351 soldNew listingBuderus Ecomatic 3000 Module M006 Domestic Water Module
BusinessEUR 60.00or Best OfferEUR 11.99 postageElco Klöckner heat technology heating control unit / control unit logon plus
BusinessEUR 289.90or Best OfferEUR 10.00 postageEnviron Controller ENC10 10-90°C 3-Point Actuator 230V 30 Sec 6 Nm servomotor
BusinessEUR 189.97or Best OfferEUR 15.99 postageViessmann PCB Board LGM 27.11B1020 Vitopend / VI 9544817 LGM27
BusinessEUR 244.90or Best OfferEUR 10.00 postageTEMPERATURE CONTROLLER THERMOSTAT TEMPERATURE SWITCH Waterproof Remote Sensor Can Alarm
BusinessEUR 3.49 to EUR 38.99EUR 6.00 postage55 soldESBE 3-Way Mixer Mixing Valve VRG131 - DN 25, DN 32, DN 40 IG
BusinessEUR 55.90 to EUR 109.50EUR 12.90 postage120 soldWall thermostat manual surface-mounted thermostat room thermostat with button 10A 230V
BusinessEUR 10.95EUR 6.00 postage258 soldVaillant 0020035420 Steuerung Baugruppe Leiterplatte Platine PCB überarbeitet
BusinessEUR 139.00EUR 18.00 postage62 soldNew listingLEDA Cable Adapter Set 1004-00816 for Vacuum Limiters LUC 2
BusinessEUR 109.00EUR 19.90 postageDIVING SLEEVE 1/2 inch 3 cm 5 cm 8 cm 10 cm 15 cm 20 cm 25 cm 30 cm 40 cm temperature sensor D
BusinessEUR 3.35 to EUR 12.99EUR 6.00 postage193 soldBuderus Logamatic R4211 S40 Boiler Control Control Module FM442 ZM422 MEC2
BusinessEUR 469.00EUR 28.99 postageESM-1510-N Hat Rail DIN TEMPERATURE CONTROLLER PTC Pt100 PT1000 J K Thermostat 999°C
BusinessEUR 43.95 to EUR 45.95EUR 6.00 postage5991374 5991372 7747026229 Buderus Outdoor Sensor Ecomatic Logamatic 2000 4000 EMS
BusinessEUR 4.99EUR 5.02 postage1,462 soldVaillant 0020092421 Steuerung Baugruppe Leiterplatte Platine PCB überarbeitet
BusinessEUR 139.00EUR 18.00 postage93 soldWeishaupt WRD R 3.0 V1.03 room controller base controller with wall holder
BusinessEUR 95.00or Best OfferEUR 11.99 postageBuderus module M006 repair kit / repair kit - new parts - schrack relay
BusinessEUR 15.95EUR 10.00 postage485 soldBuderus Logamatic RC 35 Control Unit Heating Control Room Thermostat Series 12 253007
BusinessEUR 199.90or Best OfferEUR 10.00 postageVaillant heating control unit / control unit calorMATIC VRC 430 / 0020060427
BusinessEUR 169.90or Best OfferEUR 10.00 postageLandis & Gyr RVP 21.51 / 21.5 Control Unit Heating Control Unit SIGMAGYR RVP
BusinessEUR 149.90or Best OfferEUR 10.00 postageViessmann Vitotronic 200 KW2 74507501 boiler control unit
BusinessEUR 269.99Was: EUR 299.99EUR 15.99 postagePrecision Outdoor Sensor BUDERUS Sensor RC30 RC35 MC10 BC10 RC200 RC300 RC310 MEC
BusinessEUR 4.99EUR 5.02 postage749 soldBuderus module M005 repair kit / repair kit - new parts - schrack relay
BusinessEUR 18.95EUR 10.00 postage465 soldHeat meter heat meter Engelmann SensoStar E calibration 2024 Qn 0.6 1.5 2.5
Specialist dealer measuring and meter technology engineeringBusinessEUR 129.90 to EUR 139.90EUR 19.90 postageViessmann Vitotronic 200 KW2 heating control unit 7450352 7450 352
BusinessEUR 499.90or Best OfferEUR 10.00 postageBuderus Mixer Module FM241 for R2107 HS2105 Logamatic Ecomatic Function Module
BusinessEUR 229.80EUR 7.90 postageOnly 1 left.Viessmann Comfortrol programming unit 7450180 with new system battery
BusinessEUR 170.10Was: EUR 189.00EUR 15.99 postageOnly 1 left.Vaillant Servo Pressure Regulator 050164 VCW 180-242 E for S-L/H-GAS
BusinessEUR 249.90EUR 14.90 postageViessmann, Unomatik, T40 IP20D, 7450205, boiler control, control unit, 7450 205
PrivateEUR 249.00or Best OfferEUR 21.49 postageDiving Sleeve 1/2-Inch, 100mm Solar Sensor Heater Buffer 6mm with Clip
BusinessEUR 8.99EUR 15.99 postage678 soldNew listingVaillant control unit / control unit VCW 204/3-E-HL type: B11BS
PrivateEUR 99.00or Best OfferEUR 15.99 postageSchäfer Control STW 99893 - TR070691 - STB 100693 Temperature Limiter/Guardian
BusinessEUR 45.00or Best OfferEUR 11.99 postageHeat meter heat meter Techem M62x2 vario 4 type 4.1.1 Qn Qp 1.5 2019 NEW
BusinessEUR 47.90EUR 11.90 postage16 watchingJunkers ignition transformer ignition module 8747101022, 8 747 101 027.
PrivateEUR 29.900 bidsEUR 17.90 postageEnding Friday at 4:29PM BST2d 9hRoom temperature sensor Pt1000 temperature sensor room sensor thermal encoder automation
BusinessEUR 14.49or Best OfferEUR 15.99 postage171 soldBuderus - HS3-F001* - Remote Control UMB - For corresponding Ecomatic 3000 - HS3
BusinessEUR 67.00EUR 9.00 postageThermostat capillary heating controller KTW 30-90°C 230V 16A contact changer
BusinessEUR 19.50EUR 9.50 postage121 soldResideo Satronic Honeywell Oil Combustion Machine TF 834.3 Oil Burner Control Unit
BusinessEUR 72.89EUR 14.00 postage84 soldSatronic Honeywell Oil Combustion Machine DKO 974-N Mod. 05 Oil Burn Control Unit
BusinessEUR 81.50EUR 17.00 postageOnly 3 leftAll Measure Heat Meter Integral-V 5.2mm UltraLite Ultrasonic Heat Meter Qn
BusinessEUR 49.90 to EUR 89.90EUR 11.90 postage162 soldNew listingViessmann Pressure Monitor 605.99676 Pressure Switch Vi 9567759 - 1 Year Warranty 746
BusinessEUR 39.00EUR 15.00 postageBuderus Module M005 Repair Kit / Repair Kit - New Parts - Fujitsu Relay
BusinessEUR 17.95EUR 10.00 postage160 soldHeat meter Engelmann SensoStar E TF 5.2 calibration 2024 heat meter 0.6 1.5
Specialist dealer measuring and meter technology engineeringBusinessEUR 129.90 to EUR 134.90EUR 19.90 postage139 soldHeat Meter MULTICAL 303 Qn 1.5 2.5 TF 5.2 Calibration 2024 Heat Meter
Specialist dealer measuring and meter technology engineeringBusinessEUR 134.90 to EUR 144.90EUR 19.90 postage115 soldBUDERUS HEAT PUMP Outdoor Sensor Logatherm Outside Temperature Sensor with CLAMP HMC 20
BusinessEUR 15.98EUR 2.99 postageVaillant room thermostat calorMATIC VRT 370 room control 0020108141
BusinessEUR 149.90or Best OfferEUR 10.00 postageWeather-compensated glass touch control / control with sensor set, spare part,
MSRP ̶U 2 9 , 9 , 5BusinessEUR 199.00 to EUR 249.00EUR 15.99 postage