Phone & Email Support

1-844-597-3070 * info@masterbuildermercantile.com

World Wide Shipping

Regular and Express Shipping Available

Satisfied or Refunded

Refund Available Within 30-Days of Purchase

Secure Information

Secure and Encrypted Payments.

HVAC Control Systems

145 products

Showing 1 - 24 of 145 products

Showing 1 - 24 of 145 products
View
Tekmar 519 Thermostat One Stage Heat With 079 Sensor
Tekmar Tekmar 519 Thermostat One Stage Heat With 079 Sensor
£246.00 GBP
No reviews
In Stock
Tekmar 003 Relay 24VTekmar 003 Relay 24V
Tekmar Tekmar 003 Relay 24V
£117.00 GBP
No reviews
In Stock
Tekmar 518 Thermostat One Stage Heat
Tekmar Tekmar 518 Thermostat One Stage Heat
£191.00 GBP
No reviews
In Stock
Tekmar 564 Thermostat White Invita® WiFi
Tekmar Tekmar 564 Thermostat White Invita® WiFi
£670.00 GBP
No reviews
In Stock
Tekmar 071 Universal Sensor
Tekmar Tekmar 071 Universal Sensor
£78.00 GBP
1 review
In Stock
Tekmar 563 Thermostat - Conventional 2H/2C or Heat Pump 4H/2CTekmar 563 Thermostat - Conventional 2H/2C or Heat Pump 4H/2C
Tekmar Tekmar 563 Thermostat - Conventional 2H/2C or Heat Pump 4H/2C
£826.00 GBP
No reviews
Tekmar 091 Snow/Ice Sensor Socket
Tekmar Tekmar 091 Snow/Ice Sensor Socket
£488.00 GBP
No reviews
In Stock
Tekmar 079 Slab Sensor - 10' (3 m) Wire
Tekmar Tekmar 079 Slab Sensor - 10' (3 m) Wire
£87.00 GBP
No reviews
In Stock
Belimo Z2050Q-J ZoneTight (QCV), 1/2", 2-Way, Cv 5.9
Belimo Belimo Z2050Q-J ZoneTight (QCV), 1/2", 2-Way, Cv 5.9
£87.00 GBP
No reviews
Tekmar 356 Mixing Control - Variable Speed
Tekmar Tekmar 356 Mixing Control - Variable Speed
£782.00 GBP
No reviews
In Stock
Tekmar 090 Snow/Ice Sensor In-Slab
Tekmar Tekmar 090 Snow/Ice Sensor In-Slab
£1,667.00 GBP
No reviews
In Stock
Tekmar 070 Outdoor Sensor
Tekmar Tekmar 070 Outdoor Sensor
£95.00 GBP
1 review
In Stock
Honeywell HZ322/U TRUZONE Zone Wireless Control PanelHoneywell HZ322 TRUZONE Zone Wireless Control Panel
Honeywell Honeywell HZ322 TRUZONE Zone Wireless Control Panel
£504.00 GBP
No reviews
Honeywell TH1100DH1004/U Thermostat Pro 1000 Non Programmable
Honeywell Honeywell TH1100DH1004 Thermostat Pro 1000 Non Programmable
£71.00 GBP
No reviews
Sold Out or Discontinued
Tekmar 084 Indoor Sensor - Flush Mount
Tekmar Tekmar 084 Indoor Sensor - Flush Mount
£112.00 GBP
No reviews
Emerson 1F95-1291 Blue Series 12" Touchscreen Thermostat
Emerson Emerson 1F95-1291 Blue Series 12" Touchscreen Thermostat
£507.00 GBP
No reviews
FAST-STAT Model 5000 HVAC Wiring Extender - Adds x3 Wires + Common 'C' ConnectionFAST-STAT Model 5000 HVAC Wiring Extender - Adds x3 Wires + Common 'C' Connection
FAST-STAT FAST-STAT Model 5000 HVAC Thermostat Wiring Extender
£216.00 GBP
No reviews
In Stock
Tekmar 557 TekmarNet Thermostat - Radiant Floor - 2 Heat Pump/Cool - Backup - Humidity
Tekmar Tekmar 557 TekmarNet Thermostat - Radiant Floor - 2 Heat Pump/Cool - Backup - Humidity
£1,116.00 GBP
No reviews
Tekmar 553 TekmarNet Thermostat - Two Stage Heat - One Stage Cool - Fan
Tekmar Tekmar 553 TekmarNet Thermostat - Two Stage Heat - One Stage Cool - Fan
£726.00 GBP
No reviews
Tekmar 561 Thermostat Wi-Fi One Stage Cool and Fan
Tekmar Tekmar 562 Thermostat Wi-Fi Two Stage Heat, One Stage Cool and Fan
£760.00 GBP
No reviews
Emerson 1F95-1277 Blue Series 12" Touchscreen Thermostat
Emerson Emerson 1F95-1277 Blue Series 12" Touchscreen Thermostat
£507.00 GBP
No reviews
Tekmar 521 Thermostat Programmable - Two Heat or Heat-Cool (Includes Sensor 079)
Tekmar Tekmar 521 Thermostat Programmable - Two Heat or Heat-Cool (Includes Sensor 079)
£334.00 GBP
1 review
Tekmar 552 TekmarNet Thermostat - One Stage Heat
Tekmar Tekmar 552 TekmarNet Thermostat - One Stage Heat
£604.00 GBP
No reviews
In Stock
Tekmar 532 Thermostat One Stage Heat
Tekmar Tekmar 532 Thermostat One Stage Heat
£290.00 GBP
No reviews

Recently viewed