{"product_id":"18-2-500ft-thermostat-wire-solid-copper-durable-low-voltage-cable","title":"18\/2 500ft Thermostat Wire Solid Copper - Durable Low-Voltage Cable","description":"\u003cp\u003eIn this review of the 18\/2 500ft thermostat wire, the reviewer finds it best suited for DIY HVAC work, home automation hookups and low-voltage signal runs where a long, continuous length of cable is needed. The single biggest reason to buy is its simple construction: solid 18 gauge copper conductors in an ETL CL2 rated jacket that resists heat, moisture and sunlight, which makes it practical for indoor and limited outdoor use. The review focuses on real-world handling, installation ease and the cable's value compared with trade alternatives.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eETL CL2 Rating:\u003c\/strong\u003e Provides a recognized safety classification for power limited circuits so it can be used in thermostat and control wiring runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid 18 Gauge Copper:\u003c\/strong\u003e Solid bare copper conductors deliver consistent signal and power for thermostats, doorbells and alarm systems without the complexity of stranded wire.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather-Resistant Jacket:\u003c\/strong\u003e The PVC jacket resists heat, moisture and sunlight, helping the run survive in exposed indoor areas and some covered outdoor locations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy-to-Strip Insulation:\u003c\/strong\u003e Jacket and insulation strip cleanly with fewer tears, reducing labor time and the risk of conductor damage during termination.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Continuous Length:\u003c\/strong\u003e A 500ft spool reduces the need for joins or multiple purchases on larger projects such as multi-zone HVAC or long signal runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Meets common environmental and material restrictions, which is useful for installations requiring compliance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe cable is a good fit for homeowners doing thermostat replacements, installers running control wiring for furnaces, heat pumps and A\/C, and hobbyists wiring intercoms, bell systems or simple low-voltage signage. The long 500ft spool is especially useful for multi-zone HVAC systems or projects where having a single continuous length avoids splices.\u003c\/p\u003e\n\u003cp\u003ePeople who need flexible or stranded conductors for frequent movement, or who require rated outdoor direct-burial cable should look elsewhere. Likewise, anyone needing conductors larger than 18 gauge for higher current applications must choose a different cable spec.\u003c\/p\u003e\n\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 connectivity for thermostat and signal circuits.\u003c\/li\u003e\n\u003cli\u003eETL CL2 listing and temperature rating give appropriate safety assurances for power limited use.\u003c\/li\u003e\n\u003cli\u003eDurable PVC jacket resists heat, moisture and sunlight for longer life in exposed indoor locations.\u003c\/li\u003e\n\u003cli\u003eLong 500ft length offers value for larger jobs and reduces need for splices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe outer jacket quality drew mixed comments from customers; some found it tough, others called it a bit thin compared with heavy-duty trade cable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductor\u003c\/td\u003e\n\u003ctd\u003eSolid copper, 18 gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductors\u003c\/td\u003e\n\u003ctd\u003e2 (available also in 3,4,5,6,8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e500ft (also available in 25ft, 50ft, 100ft, 250ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRating\u003c\/td\u003e\n\u003ctd\u003eETL CL2, power limited circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e-20C to +60C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Rating\u003c\/td\u003e\n\u003ctd\u003e150V (suitable for circuits not exceeding 30V in typical thermostat use)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJacket\u003c\/td\u003e\n\u003ctd\u003ePVC; heat, moisture and sunlight resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 18\/2 500ft solid copper thermostat wire is a practical, cost-effective choice for homeowners and installers who need reliable low-voltage control wiring over long runs. It balances safety credentials, ease of use and value, making it a sensible pick for thermostat, doorbell and alarm wiring where solid conductors and an ETL CL2 jacket are appropriate.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this cable be used outdoors?\u003c\/strong\u003e\u003cbr\u003eIt is intended for indoor and limited outdoor exposure where protected from direct burial and severe weather; the PVC jacket resists moisture and sunlight but is not a replacement for direct-burial rated cable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this cable suitable for thermostats and HVAC controls?\u003c\/strong\u003e\u003cbr\u003eYes, the 18 gauge solid copper conductors and ETL CL2 rating make it suitable for thermostat, heat pump and A\/C control wiring and other power limited circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the solid conductors work with modern thermostat connectors?\u003c\/strong\u003e\u003cbr\u003eSolid 18 gauge conductors are commonly used with thermostat terminal screws; they strip and terminate cleanly, but installers should avoid excessive bending where stranded wire would be preferable.\u003c\/p\u003e","brand":"eastwire","offers":[{"title":"Default Title","offer_id":48191798509787,"sku":"B0CQD353MS","price":98.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/31Du705qCTL._SL1454.jpg?v=1770267038","url":"https:\/\/gearmusthave.com\/products\/18-2-500ft-thermostat-wire-solid-copper-durable-low-voltage-cable","provider":"GearMustHave","version":"1.0","type":"link"}