{"title":"Electric Auxiliary Heater","description":"\u003ch1\u003eElectric auxiliary heater: thermal performance at the heart of every room\u003c\/h1\u003e\n\u003cp\u003eThe electric auxiliary heater allows you to quickly warm up a room when the main heating is insufficient or when you want to avoid heating the entire home. In mid-season, during cool evenings or temporary temperature drops, it provides a welcome heat boost in an office, bedroom, or living room. \u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"our complete radiator catalog\" href=\"https:\/\/bestherm.fr\/collections\/radiateurs\"\u003eOur range of radiators\u003c\/a\u003e, as well as \u003ca title=\"Thomson brand heaters\" href=\"https:\/\/bestherm.fr\/collections\/thomson\"\u003eThomson heating solutions\u003c\/a\u003e, offer models designed to combine ease of use, thermal efficiency, and energy consumption control.\u003c\/p\u003e\n\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2\u003eWhich auxiliary heater to choose for optimal comfort?\u003c\/h2\u003e\n\u003cp\u003eEach technology meets a different need depending on the room to be heated and the desired duration of use. The choice therefore mainly depends on your usage: the need for immediate heating for a few minutes or the desire for a comfortable temperature over several hours.\u003c\/p\u003e\n\u003ch3\u003eDry inertia auxiliary heating: the economical choice\u003c\/h3\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\" data-end=\"884\" data-start=\"303\"\u003eThe dry inertia auxiliary heater is one of the most interesting solutions for regular use. Its heating core, made from materials such as ceramic or cast iron depending on the model, stores the heat produced by the resistance before gradually releasing it into the room. A \u003ca title=\"ceramic heaters\" href=\"https:\/\/bestherm.fr\/collections\/ceramique\"\u003eceramic heater\u003c\/a\u003e offers a responsive temperature rise, while a \u003ca title=\"cast iron electric heaters\" href=\"https:\/\/bestherm.fr\/collections\/fonte\"\u003ecast iron heater\u003c\/a\u003e favors long-lasting heat release. The gradual diffusion thus limits temperature fluctuations and reduces frequent reheating.\u003c\/p\u003e\n\u003cp data-end=\"1314\" data-start=\"889\"\u003eConversely, the fan heater prioritizes a very rapid temperature rise thanks to the immediate diffusion of warm air. It remains particularly suitable for occasional needs, for example to heat a bathroom before a shower or quickly warm up a workspace. However, once turned off, it does not retain heat and must operate continuously to maintain the desired temperature.\u003c\/p\u003e\n\u003cp data-end=\"1680\" data-start=\"1319\"\u003eDry inertia radiators are therefore particularly suited for users looking for economical heating for regular use. To benefit from both quick heating and even heat distribution, the \u003ca title=\"double-core heating radiator\" href=\"https:\/\/bestherm.fr\/collections\/radiateur-double-coeur-de-chauffe\"\u003edouble-core heating radiator\u003c\/a\u003e combines a responsive heating film with an inertia core capable of prolonging heat release.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFluid inertia supplementary radiator (oil-filled)\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe fluid inertia supplementary radiator, also called an oil-filled radiator, is based on a simple principle: an electric resistance heats a heat transfer fluid contained inside the device. This liquid stores the heat and then gradually releases it through the radiator’s walls, allowing a steady heat output in the room.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThanks to this high thermal inertia, the oil-filled radiator continues to emit heat even after the resistance is turned off. The temperature thus remains more stable than with a fan heater, while limiting heat fluctuations. It is especially suitable for rooms occupied for several hours in a row, such as a living room, bedroom, or office.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eOn the downside, its heating up is slower than that of a fan heater or a double-core heating device. Its size is also bulkier and its weight heavier due to the presence of the heat transfer fluid.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e \u003c\/p\u003e\n\u003ch2 class=\"isSelectedEnd\"\u003eHow to calculate the power of your supplementary electric radiator?\u003c\/h2\u003e\n\u003cp\u003eA radiator suited to the room size heats more efficiently and prevents overconsumption.\u003c\/p\u003e\n\u003cp\u003eAs a general rule, you should plan for about \u003cstrong\u003e100 Watts per m²\u003c\/strong\u003e in a properly insulated home. \u003cspan\u003eThese estimates are given as a guideline and may vary depending on the insulation of the dwelling.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eLow energy heating solutions and economical electric radiators then allow you to optimize this power through better heat management.\u003c\/p\u003e\n\u003ctable style=\"margin-left: auto; margin-right: auto; width: 100%; height: 156.75px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003cth style=\"width: 16.0017%; height: 39.1875px;\"\u003eRoom type\u003c\/th\u003e\n\u003cth style=\"width: 18.1166%; height: 39.1875px; text-align: center;\" align=\"right\"\u003eIndicative area\u003c\/th\u003e\n\u003cth style=\"width: 23.0552%; height: 39.1875px; text-align: center;\" align=\"right\"\u003eRecommended Wattage\u003c\/th\u003e\n\u003cth style=\"width: 37.8264%; height: 39.1875px; text-align: center;\"\u003eRecommended Bestherm technology\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"text-align: center; height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 16.0017%; height: 39.1875px;\"\u003e\u003cstrong\u003eOffice \/ Bathroom\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 18.1166%; height: 39.1875px; text-align: center;\" align=\"right\"\u003e5 to 10 m²\u003c\/td\u003e\n\u003ctd style=\"width: 23.0552%; height: 39.1875px; text-align: center;\" align=\"right\"\u003e500W to 1000W\u003c\/td\u003e\n\u003ctd style=\"width: 37.8264%; height: 39.1875px;\"\u003eDry inertia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"text-align: center; width: 16.0017%; height: 39.1875px;\"\u003e\u003cstrong\u003eBedroom\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 18.1166%; height: 39.1875px;\" align=\"right\"\u003e10 to 15 m²\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 23.0552%; height: 39.1875px;\" align=\"right\"\u003e1000W to 1500W\u003c\/td\u003e\n\u003ctd style=\"width: 37.8264%; height: 39.1875px;\"\u003eDry or fluid inertia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 16.0017%; height: 39.1875px; text-align: center;\"\u003e\u003cstrong\u003eLiving room \/ Studio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 18.1166%; height: 39.1875px; text-align: center;\" align=\"right\"\u003e15 to 20 m²\u003c\/td\u003e\n\u003ctd style=\"width: 23.0552%; height: 39.1875px; text-align: center;\" align=\"right\"\u003e1500W to 2000W\u003c\/td\u003e\n\u003ctd style=\"width: 37.8264%; height: 39.1875px; text-align: center;\"\u003eFluid inertia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eMaximize your savings with presence and open window detectors\u003c\/h3\u003e\n\u003cp data-start=\"138\" data-end=\"602\" class=\"PDq2pG_selectionAnchorContainer\"\u003eSupplementary heaters, whether portable or fixed, now include smart features to better adapt their operation to household needs. When paired with a \u003ca href=\"https:\/\/bestherm.fr\/collections\/radiateur-electrique-connecte\" title=\"radiateur électrique connecté\"\u003econnected electric heater\u003c\/a\u003e or \u003ca href=\"https:\/\/bestherm.fr\/collections\/radiateur-intelligent\" title=\"radiateurs électriques intelligents\"\u003esmart electric heaters\u003c\/a\u003e, they offer precise temperature control to the degree, automatic shutdown in case of absence or open window, and remote control via a mobile app.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"607\" data-end=\"1044\"\u003eA \u003ca href=\"https:\/\/bestherm.fr\/collections\/radiateur-detecteur-fenetre-ouverte\"\u003eheater with an open window detector\u003c\/a\u003e detects a sudden temperature drop caused by ventilation and automatically reduces its Wattage to avoid unnecessary consumption. Models equipped with a \u003ca href=\"https:\/\/bestherm.fr\/collections\/detecteur-presence\" title=\"radiateur avec détecteur de présence\"\u003epresence detector\u003c\/a\u003e adjust heating according to the actual occupancy of the room. These features allow for more autonomous, comfortable, and better-controlled heating on a daily basis.\u003c\/p\u003e\n\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2\u003eUse, safety, and ambient air management\u003c\/h2\u003e\n\u003cp\u003eFor safe use, the heater must be placed on a stable and clear surface, leaving enough space around the device to ensure good air circulation.\u003c\/p\u003e\n\u003cp\u003eModern models generally feature multiple protections:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eoverheat safety;\u003c\/li\u003e\n\u003cli\u003etip-over safety for portable devices;\u003c\/li\u003e\n\u003cli\u003eprecision electronic thermostat;\u003c\/li\u003e\n\u003cli\u003eautomatic shutdown in case of anomaly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor damp rooms, \u003ca href=\"https:\/\/bestherm.fr\/collections\/seche-serviettes\"\u003eelectric towel warmers\u003c\/a\u003e are a perfectly suitable solution.\u003c\/p\u003e\n\u003cp\u003eThe feeling of warmth also depends on the quality of the ambient air. An appropriate humidity level improves comfort and limits problems related to overly humid air. In addition to heating, an \u003ca href=\"https:\/\/bestherm.fr\/collections\/deshumidificateur\"\u003eair dehumidifier\u003c\/a\u003e helps maintain an optimal humidity level throughout the year.\u003c\/p\u003e\n\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eWhat is the most economical type of supplementary heater?\u003c\/h3\u003e\n\u003ch4\u003eFor regular use, dry inertia and oil-filled heaters are more economical than fan heaters. They retain heat and limit electricity consumption.\u003c\/h4\u003e\n\u003cp\u003eFan heaters heat up very quickly but must run continuously to maintain temperature, making them more energy-consuming. For frequent use, dry inertia is usually preferred. Oil-filled heaters remain an interesting alternative when looking for gentle heat over several hours.\u003c\/p\u003e\n\u003ch3\u003eWhat power should you choose for an electric supplementary heater?\u003c\/h3\u003e\n\u003ch4\u003eYou generally need about 100 Watts per m² in a properly insulated room.\u003c\/h4\u003e\n\u003cp\u003eSizing also depends on insulation, ceiling height, and room usage. Choosing the right power ensures quick heating without excessive consumption.\u003c\/p\u003e\n\u003ch3\u003eCan a supplementary heater be used continuously throughout the winter?\u003c\/h3\u003e\n\u003ch4\u003eYes, a high-end supplementary heater can be used regularly, but it is primarily designed to temporarily improve the thermal comfort of a room. \u003c\/h4\u003e\n\u003cp\u003eTo heat an entire home daily, a fixed heating system is generally more suitable than a supplementary device. However, recent models equipped with an intelligent electronic thermostat, personalized programming, and presence sensors allow frequent use while controlling consumption.\u003c\/p\u003e\n\u003cp\u003eTo optimize air circulation and better distribute heat in your home, also discover \u003ca href=\"https:\/\/bestherm.fr\/blogs\/blog\/installer-ventilateur-de-plafond\"\u003eour guide to installing a ceiling fan\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"millo","title":"MILLO - Mobile radiator without fluid","description":"\u003cp data-start=\"176\" data-end=\"219\"\u003e\u003cstrong\u003eTHOMSON RANGE\u003cbr\u003e\u003c\/strong\u003e\u003cstrong data-start=\"107\" data-end=\"143\"\u003eMILLO: mobile \u0026 uniform heat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"145\" data-end=\"405\"\u003eThe electric heater \u003cstrong data-start=\"169\" data-end=\"188\"\u003eMILLO by Thomson\u003c\/strong\u003e is designed to provide immediate and flexible thermal comfort. Thanks to its built-in wheels, it easily moves from one room to another, allowing you to heat the space you actually need.\u003c\/p\u003e\n\u003cp data-start=\"407\" data-end=\"735\"\u003eIts \u003cstrong data-start=\"422\" data-end=\"436\"\u003eoil-free\u003c\/strong\u003e technology, based on a specially formulated aluminum heating element, ensures a \u003cstrong data-start=\"514\" data-end=\"546\"\u003erapid temperature rise\u003c\/strong\u003e and \u003cstrong data-start=\"554\" data-end=\"590\"\u003euniform heat distribution\u003c\/strong\u003e. Unlike fluid-filled radiators, this solution guarantees responsive heating without risk of leaks or special maintenance.\u003c\/p\u003e\n\u003cp data-start=\"737\" data-end=\"914\"\u003eMILLO thus offers \u003cstrong data-start=\"757\" data-end=\"798\"\u003econsistent, reliable, and durable heating\u003c\/strong\u003e, while remaining easy to use and perfectly suited as a main, supplementary, or backup heater.\u003c\/p\u003e\n\u003cp data-start=\"916\" data-end=\"1064\"\u003e\u003cstrong data-start=\"916\" data-end=\"948\"\u003ePractical, efficient, and mobile\u003c\/strong\u003e, MILLO adapts to your daily life to provide optimal thermal comfort wherever you are in your home.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Thomson","offers":[{"title":"2000W","offer_id":55824416571723,"sku":"ZCH003B2","price":169.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0877\/3078\/2539\/files\/MILLO_2000W_AMBIANCE.jpg?v=1780471070"},{"product_id":"calista","title":"CALISTA - Mobile oil-filled radiator","description":"\u003cp data-end=\"219\" data-start=\"176\"\u003e\u003cstrong\u003eTHOMSON RANGE\u003cbr\u003e\u003c\/strong\u003e\u003cstrong data-start=\"101\" data-end=\"149\"\u003eCALISTA: mobile heater \u0026 lasting warmth\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"151\" data-end=\"320\"\u003eThe Thomson electric heater \u003cstrong data-start=\"175\" data-end=\"186\"\u003eCALISTA\u003c\/strong\u003e, equipped with wheels, easily moves from room to room to bring warmth where you need it.\u003c\/p\u003e\n\u003cp data-start=\"322\" data-end=\"543\"\u003eIts \u003cstrong data-start=\"349\" data-end=\"371\"\u003efluid heat transfer\u003c\/strong\u003e system (mineral oil) stores heat and then gradually releases it. The result: a \u003cstrong data-start=\"476\" data-end=\"510\"\u003econstant, even, and lasting temperature\u003c\/strong\u003e, without unpleasant fluctuations.\u003c\/p\u003e\n\u003cp data-start=\"545\" data-end=\"716\"\u003eEasy to use and designed to provide immediate thermal comfort, \u003cstrong data-start=\"619\" data-end=\"630\"\u003eCALISTA\u003c\/strong\u003e is the ideal companion for reliable and pleasant supplementary heating every day.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Thomson","offers":[{"title":"Blanc","offer_id":55810558296395,"sku":"ZOH207-BLANC","price":129.9,"currency_code":"EUR","in_stock":true},{"title":"Noir","offer_id":55810561179979,"sku":"ZOH207-NOIR","price":129.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0877\/3078\/2539\/files\/CALISTA_BLANC_AMBIANCE.jpg?v=1780469803"}],"url":"https:\/\/bestherm.fr\/en\/collections\/electric-auxiliary-heater.oembed","provider":"Bestherm","version":"1.0","type":"link"}