{"product_id":"chaudiere-electrique-conforto-at-at1243-12-kw-240v","title":"CONFORTO AT AT1243 Electric Boiler | 12 kW - 240V","description":"\u003ch2\u003eA 12 kW electric boiler that heats in small steps\u003c\/h2\u003e\n\u003ch3\u003eThe idea: four stages instead of two\u003c\/h3\u003e\n\u003cp\u003eIn Quebec, heating demand changes a lot between a cool October evening and a January night. The Conforto AT1243 answers that gap with four 3,000 W elements, turned on one by one in four stages. In mild weather, a single element can be enough; as the cold sets in, the boiler adds a second, then a third, up to the full 12 kW at 240 V, or 41,000 BTU\/h according to the manufacturer.\u003c\/p\u003e\n\u003cp\u003eThe controller also rotates the elements: it is not always the same one that starts first. An immersion sensor at the heat exchanger outlet controls the stages and prevents short cycling.\u003c\/p\u003e\n\u003cp\u003eIn the AT series, the AT1243 sits next to the AT1226, with the same output but fewer, larger elements. If your loop feeds a low-temperature radiant floor, or if you like heat that follows the weather closely, the AT1243 deserves your attention.\u003c\/p\u003e\n\u003ch3\u003eIn a Quebec home\u003c\/h3\u003e\n\u003cp\u003eTake a new \u003cstrong\u003eNorth Shore\u003c\/strong\u003e house heated by a radiant floor, or an older \u003cstrong\u003eLaval\u003c\/strong\u003e house with radiators and an indirect water heater. In both cases, the AT1243 mounts on the wall, weighs about 70 lb (32 kg) as shipped and connects to the loop with 1 1\/4 in NPT fittings. The loop must supply at least 4.1 gpm for a 20 °F ΔT.\u003c\/p\u003e\n\u003cp\u003eElectrically, Conforto requires a dedicated 240 V single-phase circuit, with a minimum ampacity of 70.0 A and maximum protection of 70 A. The controller also provides inputs for a flow switch, a low-water device and a load-management signal from the electricity provider.\u003c\/p\u003e\n\u003cp\u003eThe indirect water heater, if it is part of the project, is sold separately. The controller gives it its own setpoint and priority, so domestic hot water comes before room heating.\u003c\/p\u003e\n\u003ch3\u003eInstallation by AirGreen\u003c\/h3\u003e\n\u003cp\u003eWe start with a free on-site estimate, then give you a written quote that details the boiler and the loop components. On the day, our technicians mount the unit, make the water and electrical connections, fill and purge the circuit.\u003c\/p\u003e\n\u003cp\u003eCommissioning matters as much as mounting: we check that the four stages come on correctly, set the heating setpoint to your emitters and, where applicable, the domestic hot-water setpoint with priority. Finally, we explain the yearly maintenance Conforto requires for its limited lifetime warranty.\u003c\/p\u003e\n\u003cp\u003eAirGreen is a family business established in \u003cstrong\u003eMontreal\u003c\/strong\u003e for more than fifteen years, RBQ licence 5645-9605-01.\u003c\/p\u003e\n\u003ch3\u003eYour free estimate\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMontreal, Laval, Longueuil, North Shore or South Shore: ask for your free estimate and your written quote. \u003ca href=\"\/en\/pages\/financement-avec-financeit\"\u003eFinancing\u003c\/a\u003e is available.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Conforto","offers":[{"title":"Default Title","offer_id":67801662095652,"sku":"AT1243","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/CHAUDIERE_ELECTRIQUE_CONFORTO_AT_AT1243_12_KW_00_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1793082242","url":"https:\/\/airgreen.ca\/en\/products\/chaudiere-electrique-conforto-at-at1243-12-kw-240v","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}