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Line Voltage Thermostats


A line voltage system uses direct current instead of only 24 volts like the typical thermostat of today's newer homes. This type of thermostat is used in older homes that use direct voltage. The power wires are thicker and they generally run either 120 or 240 volts on direct current.  See our selection of line voltage thermostats below. 

Best Thermostats

Thermostat Guide

Honeywell TL8230A1003 Thermostat
5.0 Star Rating: Outstanding
12 reviews
Honeywell TL8230A1008
Thermostat
  • Precision temperature accuracy
  • Pre-set 7 day program
  • User-friendly digital controls
Price:
$64.95
Honeywell TL8230A1003 Thermostat
Honeywell T498 Thermostat
5.0 Star Rating: Outstanding
1 review
Honeywell T498
Thermostat
  • Bimetal sensor element
  • Includes plastic mounting base
  • Compatible with electric baseboards
Price:
$41.95
Honeywell T498 Thermostat
Honeywell T651A Thermostat
5.0 Star Rating: Outstanding
1 review
Honeywell T651A3018
Thermostat
  • 2 degrees differential!
  • Security locking cover
  • Industrial-grade micro switch
Price:
$69.95
Honeywell T651A Thermostat
White Rodgers 1A66-641 Thermostat
4.8 Star Rating: Good
4 reviews
White Rodgers 1A66-641
Thermostat
  • Accommodates higher wattage
  • Simple to install
  • Designed for 240V applications
Price:
$37.13
White Rodgers 1A66-641 Thermostat
Columbus 1A22-7 Thermostat
Honeywell 1a22-7
  • Heavy-duty switch
  • Includes ivory color case
  • 90-130° F cooing range!
Price:
$28.95
Columbus 1A22-7 Thermostat
Honeywell T4398A1021Thermostat
Honeywell T4398A1021
Thermostat
  • Color coded flyleads
  • Altitude compensation function
  • Controls baseboard and fan-forced
Price:
$36.95
Honeywell T4398A1021Thermostat
Dimplex ETD620W2 Thermostat
4.0 Star Rating: Good
1 review
Dimplex ETD620W2
Thermostat
  • Celsius and fahrenheit inserts
  • Enclosed lead wires
  • Clean minimalist design
Price:
$38.95
Dimplex ETD620W2 Thermostat
Honeywell TL7235A1003 Thermostat
4.9 Star Rating: Good
7 reviews
Honeywell TL7235A1003
Thermostat
  • Easy heat confirmation
  • Intuitive display controls
  • No batteries required!
Price:
$59.95
Honeywell TL7235A1003 Thermostat
PSG Controls RPLV-120S-C Thermostat
PSG Controls RPLV-120S-C
Thermostat
  • Amazing 1° F accuracy!
  • Non-volatile memory chip
  • Separate weekend programming
Price:
$127.25
PSG Controls RPLV-120S-C Thermostat



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