14/2 vs 16/2 Speaker Wire: Which Should You Choose?
Learn the differences between 14/2 and 16/2 speaker wire, including distance, power handling, installation flexibility, and ideal applications.
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Thermostat Wire 18AWG Solid Bare Copper CMR CL2R Brown 2 3 4 5 8 Conductors
SKU:
1331-Big
Sale price
$93.95
Regular price
$99.59
Unit price
6% off
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Solid Bare Copper · 18AWG · 2 to 8 Conductors
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Color-Coded PVC Insulation Per Conductor
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CMR/FT4 Rated Brown PVC Jacket
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C(ETL)US Listed · CL2R · Sunlight Resistant
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500ft Reel (18/2–18/6) · 250ft Reel (18/8)
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on Bulk Orders
The more you buy, the more you save!
| QTY | Price Per Item | Your Savings |
|---|---|---|
| 3–9 units | $91.13 / unit | 3% |
| 10–19 units | $89.25 / unit | 5% |
| 20+ units | $87.37 / unit | 7% |
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Thermostat Wire 18AWG Solid Bare Copper CMR CL2R Brown 2 3 4 5 8 Conductors
$99.59
$93.95
SKU:
1331-Big
Sale price
$93.95
Regular price
$99.59
Unit price
-
𝐅𝐔𝐓𝐔𝐑𝐄-𝐏𝐑𝐎𝐎𝐅 𝐘𝐎𝐔𝐑 𝐈𝐍𝐒𝐓𝐀𝐋𝐋 Always buy one conductor count higher than you need today — spare wires mean your next smart thermostat upgrade won't need new cable.
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𝐍𝐎 𝐅𝐀𝐋𝐒𝐄 𝐓𝐑𝐈𝐏𝐒 𝐍𝐎 𝐂𝐀𝐋𝐋𝐁𝐀𝐂𝐊𝐒 Solid bare copper keeps HVAC control signals clean and consistent — poor connections in thermostat wiring cause nuisance faults and callbacks.
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𝐏𝐀𝐒𝐒𝐄𝐒 𝐈𝐍𝐒𝐏𝐄𝐂𝐓𝐈𝐎𝐍 𝐅𝐈𝐑𝐒𝐓 𝐓𝐈𝐌𝐄 CMR/FT4 fire rating and C(ETL)US Listing mean your in-wall thermostat run meets code the first time — no rework, no failed inspection.
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𝐌𝐀𝐓𝐂𝐇𝐄𝐒 𝐘𝐎𝐔𝐑 𝐒𝐘𝐒𝐓𝐄𝐌 𝐄𝐗𝐀𝐂𝐓𝐋𝐘 From 2-conductor doorbells to 8-conductor zoned systems, get the exact conductor count your control board needs — no paying for wires you won't use.
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𝐁𝐑𝐎𝐖𝐍 𝐌𝐄𝐀𝐍𝐒 𝐓𝐇𝐄𝐑𝐌𝐎𝐒𝐓𝐀𝐓 𝐖𝐈𝐑𝐄 Industry-standard brown jacket lets you tell this apart from alarm, speaker, or network cable at a glance in a crowded wall cavity.
Description
Description
Wire any thermostat or HVAC control system cleanly and reliably with this 18AWG solid bare copper thermostat wire, rated CMR/FT4 and C(ETL)US Listed for permanent in-wall and riser installations. Available in six conductor counts to match every system, from a basic single-stage heater to a multi-stage smart thermostat or zoned heat pump installation.
The sunlight-resistant brown PVC jacket is the industry-standard color for thermostat wire — easy to identify on the job and resistant to UV, moisture, and temperature extremes. Solid bare copper conductors carry reliable signal between thermostats and HVAC equipment, and this same wire is commonly used for doorbell chimes and security alarm panel wiring.
Standards: C(ETL)US Listed · CMR/FT4 Rated · CL2/CL2R · Sunlight Resistant
Technical Specifications:
• Conductor: Solid Bare Copper · AWG: 18 · Conductors: 2 to 8
• Insulation: Color-Coded PVC · Jacket: CMR-Rated PVC, Brown
• 18/2–18/6: 500ft Reel · 18/8: 250ft Reel
• OD: 0.132 in. (18/2) to 0.202 in. (18/8)
Conductor Guide:
• 18/2 — Basic heating, doorbells, simple controls
• 18/3 — Single-stage heat/cool + fan
• 18/4 — Most thermostats (R/G/Y/C terminals)
• 18/5 — Heat pumps, auxiliary heat systems
• 18/6 — Multi-stage systems, emergency heat
• 18/8 — Smart thermostats, zoned HVAC systems
Specifications
Specifications
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Colors
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