{"product_id":"18-6-250ft-thermostat-wire-cable-solid-copper-cl2-low-voltage","title":"18\/6 250ft Thermostat Wire Cable - Solid Copper, CL2 Low Voltage","description":"\u003cp\u003eIn this review of the 18\/6 250ft thermostat cable from NATIONAL Wire\u0026amp;Cable, the bottom line is straightforward: it is a good choice for installers and homeowners who need reliable low voltage connections and prefer products made in the USA. The review focuses on real-world use with HVAC and thermostat systems, highlighting the main reason to buy: solid copper conductors that deliver strong conductivity and predictable signal transmission for thermostats and doorbells. It is not a premium armored cable, but it performs well where flexibility and clear signal paths matter.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in USA:\u003c\/strong\u003e Manufactured in New York since 1972, the cable gives buyers confidence in consistent production and quality control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% Solid Copper Conductors:\u003c\/strong\u003e Solid copper cores improve electrical conductivity and reduce resistance for accurate thermostat signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCL2 ETL Listed:\u003c\/strong\u003e Rated for low voltage applications, the cable meets safety expectations for in-wall thermostat and doorbell runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e Built to withstand typical installation stresses so connections remain secure over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-conductor design:\u003c\/strong\u003e Six conductors simplify hookups for multi-stage HVAC systems and additional control circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifetime warranty:\u003c\/strong\u003e Backed by the manufacturers lifetime satisfaction promise, providing support for long-term use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe cable is best for HVAC contractors, electricians, and DIY homeowners who need a straightforward, CL2-rated low voltage wire for thermostats, doorbells, or simple control wiring. Those who value solid copper conductors and prefer a product made domestically will appreciate the consistency and conductivity this cable offers.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for runs that demand heavy mechanical protection, such as exposed outdoor runs or areas requiring armored cable. Customers needing extra abrasion resistance or specialized high-flex conductors for constant motion should consider purpose-built alternatives.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSolid copper conductors deliver reliable electrical performance for thermostats and low voltage devices.\u003c\/li\u003e\n\u003cli\u003eCL2 ETL listing means it is suitable for in-wall low voltage installations in residential and commercial settings.\u003c\/li\u003e\n\u003cli\u003eProduced in the USA with a long manufacturing history, offering traceable quality and a lifetime warranty.\u003c\/li\u003e\n\u003cli\u003eSix conductors allow straightforward wiring for multi-stage HVAC systems and extra control lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users report the jacket and conductors feel somewhat fragile during handling, so careful routing and strain relief are advised.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductor type\u003c\/td\u003e\n\u003ctd\u003e100% solid copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGauge\u003c\/td\u003e\n\u003ctd\u003e18 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductors\u003c\/td\u003e\n\u003ctd\u003e6 (18\/6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e250 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRating\u003c\/td\u003e\n\u003ctd\u003eCL2 ETL listed for low voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of manufacture\u003c\/td\u003e\n\u003ctd\u003eMade in USA (New York)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLifetime satisfaction warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 18\/6 250ft thermostat cable is a practical, value-oriented choice for most thermostat and HVAC control wiring projects because of its solid copper conductors, CL2 rating, and domestic manufacture. Installers and homeowners who need reliable signal transmission and an in-wall approved low voltage cable will find good performance for the price, while those requiring heavier-duty or more flexible jacketed wire should consider specialized alternatives.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this cable safe for in-wall thermostat installation?\u003c\/strong\u003e\u003cbr\u003eYes. It is CL2 ETL listed, which indicates it meets common safety standards for in-wall low voltage thermostat and doorbell wiring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this cable be used with smart thermostats?\u003c\/strong\u003e\u003cbr\u003eYes. The solid copper conductors provide consistent signal and power paths compatible with most smart thermostat installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the cable come with a warranty?\u003c\/strong\u003e\u003cbr\u003eYes. The manufacturer backs the cable with a lifetime satisfaction warranty.\u003c\/p\u003e","brand":"NATIONAL Wire\u0026Cable","offers":[{"title":"Default Title","offer_id":48236849922267,"sku":"B0CSQ2JBK4","price":131.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61ONG4qtTpL._SL1500.jpg?v=1770841607","url":"https:\/\/gearmusthave.com\/products\/18-6-250ft-thermostat-wire-cable-solid-copper-cl2-low-voltage","provider":"GearMustHave","version":"1.0","type":"link"}