{"product_id":"drayton-digistat-battery-3a-relay-programmable-thermostat-2290b","title":"Drayton Digistat Battery 3A Relay Programmable Thermostat 2290B","description":"\u003c!-- SEO Product Name: Drayton Digistat Battery 3A Relay Programmable Thermostat 2290B --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; color:#2B2B2B; line-height:1.6; font-family:Arial, Helvetica, sans-serif;\"\u003e\n\u003cp style=\"font-size:16px; line-height:1.7; color:#2B2B2B; margin:0 0 16px 0;\"\u003eThe \u003cstrong\u003eDrayton Digistat Battery 3A Relay (2290B)\u003c\/strong\u003e is a battery-powered, app-enabled room thermostat giving a simple \u003cstrong\u003etwo-wire connection to the boiler\u003c\/strong\u003e with a 3A relay output — no extra wiring runs, and no mains supply needed at the thermostat itself. It brings the same universal Digistat operation to a battery-powered platform, making it a straightforward retrofit for properties where running extra cable is impractical.\u003c\/p\u003e\n\u003cp style=\"font-size:16px; line-height:1.7; color:#2B2B2B; margin:0 0 16px 0;\"\u003eProgramme it directly on the unit or via the \u003cstrong\u003eWiser Home app over Bluetooth\u003c\/strong\u003e, with no Wi-Fi or broadband router required, choosing between 7-day, 5\/2-day, 24-hour, or simple manual thermostat operation, with settings optimised for gas, oil or heat pump systems.\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0 28px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 140px; background:#008377CF; color:#fff; border-radius:10px; padding:16px 10px; text-align:center; min-width:120px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; line-height:1.2;\"\u003e2-Wire\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:600; margin-top:4px; letter-spacing:.02em; opacity:0.95;\"\u003eBoiler Connection\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px; background:#008377CF; color:#fff; border-radius:10px; padding:16px 10px; text-align:center; min-width:120px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; line-height:1.2;\"\u003e5–30°C\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:600; margin-top:4px; letter-spacing:.02em; opacity:0.95;\"\u003eSetting Range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px; background:#008377CF; color:#fff; border-radius:10px; padding:16px 10px; text-align:center; min-width:120px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; line-height:1.2;\"\u003e3(1)A\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:600; margin-top:4px; letter-spacing:.02em; opacity:0.95;\"\u003eRelay Output\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px; background:#008377CF; color:#fff; border-radius:10px; padding:16px 10px; text-align:center; min-width:120px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; line-height:1.2;\"\u003e2×AA\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:600; margin-top:4px; letter-spacing:.02em; opacity:0.95;\"\u003eBattery Powered\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px; background:#008377CF; color:#fff; border-radius:10px; padding:16px 10px; text-align:center; min-width:120px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; line-height:1.2;\"\u003eBluetooth\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:600; margin-top:4px; letter-spacing:.02em; opacity:0.95;\"\u003eApp Control, No Wi-Fi\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px; background:#008377CF; color:#fff; border-radius:10px; padding:16px 10px; text-align:center; min-width:120px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; line-height:1.2;\"\u003e2 Years\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:600; margin-top:4px; letter-spacing:.02em; opacity:0.95;\"\u003eGuarantee\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:14px; margin:18px 0 28px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#00625D; font-size:15px; margin-bottom:6px;\"\u003eBattery-Powered, Two-Wire Connection\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444; line-height:1.6;\"\u003eUses just a \u003cstrong\u003etwo-wire connection to the boiler\u003c\/strong\u003e with a 3A relay output, avoiding the need for a mains supply run to the thermostat location.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#00625D; font-size:15px; margin-bottom:6px;\"\u003eBluetooth App Control, No Wi-Fi Needed\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444; line-height:1.6;\"\u003eProgramme via the \u003cstrong\u003eWiser Home app over Bluetooth\u003c\/strong\u003e, with no home Wi-Fi or broadband router required, alongside full manual control on the thermostat.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#00625D; font-size:15px; margin-bottom:6px;\"\u003eUniversal Programming\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444; line-height:1.6;\"\u003eSwitch between \u003cstrong\u003e7-day, 5\/2-day, or 24-hour programming\u003c\/strong\u003e, or use it as a simple manual room thermostat depending on the household's needs.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#00625D; font-size:15px; margin-bottom:6px;\"\u003eSettings Retained on Battery Change\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444; line-height:1.6;\"\u003eProgrammed schedules and settings are \u003cstrong\u003eretained when batteries are replaced\u003c\/strong\u003e, so there's no need to reprogram after routine maintenance.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#00625D; font-size:15px; margin-bottom:6px;\"\u003eOptimised for Gas, Oil, Heat Pump \u0026amp; Electric\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444; line-height:1.6;\"\u003eInstaller-selectable \u003cstrong\u003efuel-type optimisation\u003c\/strong\u003e adapts cycling behaviour to suit gas, oil, heat pump, or electric heat sources.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#00625D; font-size:15px; margin-bottom:6px;\"\u003eBoiler Plus Compliant\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444; line-height:1.6;\"\u003eThe 2290B qualifies as \u003cstrong\u003eboth a Smart Control and Load Compensation measure\u003c\/strong\u003e under Boiler Plus, satisfying the additional control requirement on new or replacement boilers.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FDECEC; border-left:4px solid #D32F2F; border-radius:6px; padding:14px 16px; margin:18px 0;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#D32F2F; font-size:14px; margin-bottom:4px;\"\u003eImportant Safety Information\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#333; line-height:1.6;\"\u003eThe 2290B is \u003cstrong\u003edesigned for fixed wiring only\u003c\/strong\u003e, in accordance with current IET wiring regulations (BS 7671). Installation and wiring should be carried out by a competent person, with the mains electrical supply isolated before starting work.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#E6F4F3; border-left:4px solid #008377CF; border-radius:6px; padding:14px 16px; margin:18px 0;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; font-size:14px; margin-bottom:4px;\"\u003eGood to Know\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#333; line-height:1.6;\"\u003eThe 2290B includes \u003cstrong\u003eaccessibility features\u003c\/strong\u003e for visually-impaired users: it can be set to manual (temperature-only) mode, has recessed + and – buttons, and provides an audible tone above and below the set point when audible feedback is enabled.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size:19px; font-weight:700; color:#00625D; margin:32px 0 14px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eTechnical Specification\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; overflow:hidden; margin:18px 0 28px 0;\"\u003e\n\u003cdiv style=\"background:#008377CF; color:#fff; font-weight:700; font-size:13px; letter-spacing:.05em; text-transform:uppercase; padding:10px 16px;\"\u003eIdentification\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eBrand\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003eDrayton\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eManufacturer Part Number (MPN)\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003e2290B\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eRange\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003eDigistat\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#fff; font-weight:700; font-size:13px; letter-spacing:.05em; text-transform:uppercase; padding:10px 16px;\"\u003ePower \u0026amp; Electrical\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003ePower Supply\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003e2 x AA 1.5V alkaline batteries\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eSwitch Type \u0026amp; Rating\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003e3(1)A at 230V\/50Hz\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eMin. Recommended Current\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003eSPDT (voltage free), 10mA @ 24V AC (inductive)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eWiring\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003eFixed wiring only, two-wire connection to boiler\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#fff; font-weight:700; font-size:13px; letter-spacing:.05em; text-transform:uppercase; padding:10px 16px;\"\u003eControl \u0026amp; Programming\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eTemperature Setting Range\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003e5°C to 30°C\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eProgramming Options\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003e7-day, 5\/2-day, 24-hour, or manual\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eApp Control\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003eWiser Home app via Bluetooth (no Wi-Fi required)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eService Interval\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003eOptional configurable reminder\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#fff; font-weight:700; font-size:13px; letter-spacing:.05em; text-transform:uppercase; padding:10px 16px;\"\u003ePhysical \u0026amp; Environmental\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eDimensions\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003e90 x 135 x 31mm (H x W x D)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eAmbient Operating Temperature\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003e0°C to 40°C\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eAmbient Operating Humidity\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003e20% to 80% (90% non-condensing)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eProtection Level\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003eIP30\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eColour\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003eWhite\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#fff; font-weight:700; font-size:13px; letter-spacing:.05em; text-transform:uppercase; padding:10px 16px;\"\u003eStandards \u0026amp; Warranty\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eEnergy Class\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003eIV = 2%\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eRelevant EC Directives\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003e2014\/53\/EU Radio Equipment Directive; 2012\/19\/EU WEEE; 2011\/65\/EU RoHS\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eApplied Standards\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003eEN60730-1; EN 60730-2-7; EN 60730-2-9; ETSI EN 300 328; ETSI EN 301 489\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eApp Requirements\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003eAndroid 9+ \/ iOS 12+ \/ Bluetooth 4.2 or higher\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 16px; font-weight:600; color:#333; font-size:14px;\"\u003eManufacturer Guarantee\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 16px; color:#222; font-size:14px;\"\u003e2 years\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size:19px; font-weight:700; color:#00625D; margin:32px 0 14px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eTypical Applications\u003c\/div\u003e\n\u003cp style=\"font-size:16px; line-height:1.7; color:#2B2B2B; margin:0 0 16px 0;\"\u003e\u003cstrong\u003eRetrofit installations\u003c\/strong\u003e where running mains power to the thermostat location is impractical.\u003cbr\u003e\u003cstrong\u003eCombi and system boiler control\u003c\/strong\u003e using a simple two-wire, 3A relay connection.\u003cbr\u003e\u003cstrong\u003eBoiler Plus-compliant upgrades\u003c\/strong\u003e combining smart control and load compensation without additional wiring.\u003c\/p\u003e\n\u003cdiv style=\"font-size:19px; font-weight:700; color:#00625D; margin:32px 0 14px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#F7FAFA;\"\u003e\u003cspan\u003eDoes the 2290B need a mains electrical supply?\u003c\/span\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377CF\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px; font-size:15px; color:#444; line-height:1.65; border-top:1px solid #D9EDEA; background:#fff;\"\u003eNo. The 2290B is \u003cstrong\u003ebattery powered\u003c\/strong\u003e, using 2 x AA alkaline batteries, and connects to the boiler using only a simple two-wire, volt-free relay connection.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#F7FAFA;\"\u003e\u003cspan\u003eWill I lose my programme when I change the batteries?\u003c\/span\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377CF\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px; font-size:15px; color:#444; line-height:1.65; border-top:1px solid #D9EDEA; background:#fff;\"\u003eNo. \u003cstrong\u003eSettings are retained on battery change\u003c\/strong\u003e, so schedules don't need to be re-entered after routine battery replacement.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#F7FAFA;\"\u003e\u003cspan\u003eDo I need Wi-Fi to use the app with the 2290B?\u003c\/span\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377CF\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px; font-size:15px; color:#444; line-height:1.65; border-top:1px solid #D9EDEA; background:#fff;\"\u003eNo. The \u003cstrong\u003eWiser Home app connects directly via Bluetooth\u003c\/strong\u003e, so no home Wi-Fi or broadband router is needed — only a mobile data connection to open the app itself.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#F7FAFA;\"\u003e\u003cspan\u003eWhat fuel types is the 2290B optimised for?\u003c\/span\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377CF\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px; font-size:15px; color:#444; line-height:1.65; border-top:1px solid #D9EDEA; background:#fff;\"\u003eThe 2290B supports \u003cstrong\u003eoptimised settings for gas, oil, heat pump and electric heating systems\u003c\/strong\u003e, selected during installation to match cycling behaviour to the heat source.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#F7FAFA;\"\u003e\u003cspan\u003eIs the 2290B suitable for visually-impaired users?\u003c\/span\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377CF\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px; font-size:15px; color:#444; line-height:1.65; border-top:1px solid #D9EDEA; background:#fff;\"\u003eYes. It can be set to \u003cstrong\u003emanual (temperature-only) mode\u003c\/strong\u003e, has recessed + and – buttons, and can provide an audible tone above and below the set point.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#F7FAFA;\"\u003e\u003cspan\u003eIs the 2290B Boiler Plus compliant?\u003c\/span\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377CF\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px; font-size:15px; color:#444; line-height:1.65; border-top:1px solid #D9EDEA; background:#fff;\"\u003eYes. The 2290B qualifies as \u003cstrong\u003eboth a Smart Control and a Load Compensation device\u003c\/strong\u003e under Boiler Plus, satisfying the additional control requirement on new or replacement boiler installations.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Drayton Controls","offers":[{"title":"Default Title","offer_id":65885853745501,"sku":"2290B","price":39.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/DraytonDigistatBattery3ARelayProgrammableThermostat2290B.jpg?v=1789060615","url":"https:\/\/qualityheating.co.uk\/products\/drayton-digistat-battery-3a-relay-programmable-thermostat-2290b","provider":"AIZO Quality Heating","version":"1.0","type":"link"}