{"product_id":"heatmiser-slimline-b-v3-battery-programmable-thermostat","title":"Heatmiser Slimline-B V3 – Battery Powered Programmable Room Thermostat","description":"\u003csection class=\"product-description\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eHeatmiser Slimline-B V3\u003c\/strong\u003e is a sleek, battery-powered \u003cstrong\u003eprogrammable room thermostat\u003c\/strong\u003e designed for simple and flexible control of conventional central heating systems.\u003c\/p\u003e\n\u003cp\u003ePowered by \u003cstrong\u003e2 x AAA batteries\u003c\/strong\u003e, this thermostat is ideal for retrofit heating upgrades, replacement thermostat installations and locations where mains power is not available. With a large backlit display, multiple programming modes and up to \u003cstrong\u003e4 comfort levels per day\u003c\/strong\u003e, the Slimline-B V3 gives users accurate and convenient heating control.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Powered\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eRuns on 2 x AAA batteries, with no mains power connection required.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFlexible Programming Modes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eChoose from non-programmable, 5\/2-day or 7-day heating schedule control.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e4 Comfort Levels Per Day\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSet multiple temperature periods to match daily routines and improve comfort.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eLarge Backlit Display\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eClear white backlit screen for easy reading, even in low-light areas.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFrost Protection \u0026amp; Key Lock\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHelps protect the heating system in cold weather and prevents unwanted setting changes.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBattery powered programmable room thermostat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHeatmiser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSlimline-B V3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePower Supply\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e2 x AAA batteries, included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eProgramming Modes\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eNon-programmable, 5\/2-day and 7-day programmable modes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eComfort Levels\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eUp to 4 comfort levels per day\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eTemperature Range\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e5°C – 35°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eDisplay\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eLarge white backlit display with 30-second auto-off\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eModes\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eTemperature hold, holiday mode and frost protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSecurity\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eKey lock to prevent tampering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eMounting\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eWall mounted, fits standard backplate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e98mm H x 85mm W x 24mm D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSKU\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSlimline-B V3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCentral heating thermostat control\u003c\/li\u003e\n\u003cli\u003eGas boiler and combi boiler heating systems\u003c\/li\u003e\n\u003cli\u003eZone valve heating setups\u003c\/li\u003e\n\u003cli\u003eReplacing traditional room thermostats\u003c\/li\u003e\n\u003cli\u003eRetrofit heating upgrades where mains power is not available\u003c\/li\u003e\n\u003cli\u003eHomes, rentals and light commercial heating control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose the Heatmiser Slimline-B V3?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eHeatmiser Slimline-B V3 battery thermostat\u003c\/strong\u003e gives homeowners reliable programmable heating control without the need for mains wiring. Its flexible scheduling, backlit display, frost protection and key lock make it a practical upgrade for conventional central heating systems, especially in retrofit projects.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e The Slimline-B V3 is designed for conventional central heating control and is \u003cstrong\u003enot suitable for electric underfloor heating\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv style=\"padding: 15px; border: 1px solid #ddd; margin-top: 20px;\"\u003e\n\u003ch3 style=\"margin-top: 0;\"\u003eQuick Summary\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 0;\"\u003eA battery-powered \u003cstrong\u003eHeatmiser Slimline-B V3 programmable room thermostat\u003c\/strong\u003e with 2 x AAA batteries, 5\/2-day or 7-day scheduling, 4 comfort levels per day, large backlit display, frost protection, key lock and temperature hold mode.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Heatmiser","offers":[{"title":"Default Title","offer_id":49789835575562,"sku":"Slimline-B V3","price":39.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0834\/1782\/5546\/files\/Slimline_800x800_ccec9a7f-36a2-4dea-ace2-512f8946bc24.jpg?v=1728646064","url":"https:\/\/thermriteshop.co.uk\/products\/heatmiser-slimline-b-v3-battery-programmable-thermostat","provider":"ThermRite Shop","version":"1.0","type":"link"}