{"product_id":"heating-element-one-d-d-profile-any-colour","title":"Heating Element ONE D (D Profile), Thermostatic Heating Element (internal\/ambient room temp), (manual\/optional IR controllable) 120w to 1000w, Any Colour","description":"\u003cp style=\"margin-bottom: 30px;\"\u003eHere at \u003cstrong\u003ethe heat is on\u003c\/strong\u003e, we put the knowledge of what you need directly in your hands as the homeowner, so you needn’t ask or wait for information from your electrician. Here we give you complete expert guidance for this specific heating element — so you can source all parts needed to ensure a smooth and successful installation of your electric \/ dual fuel towel rail or radiator when your tradesman arrives.\u003c\/p\u003e\n\u003ch3 class=\"tio-section-title\"\u003ewhat is a heating element?\u003c\/h3\u003e\n\u003cul style=\"margin-bottom: 30px;\"\u003e\n\u003cli\u003eA heating element is used as the heat source in an electric towel rail or radiator.\u003c\/li\u003e\n\u003cli\u003eIt works by heating the water or oil inside the radiator, in the same way an element heats water inside a kettle.\u003c\/li\u003e\n\u003cli\u003eWe have a full guide on heating elements if you want to learn even more — \u003ca href=\"https:\/\/www.theheatison.uk\/pages\/technical-advice-heating-elements\"\u003eclick here to read the dedicated guide\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"tio-section-title\"\u003etemperature control \u0026amp; operation\u003c\/h3\u003e\n\u003cul style=\"margin-bottom: 30px;\"\u003e\n\u003cli\u003eThe ONE is a unique element from Terma which has been manufactured in matching profiles to Terma radiators.\u003c\/li\u003e\n\u003cli\u003eTwo heat settings: 45°C and 60°C, regulating the internal radiator temperature.\u003c\/li\u003e\n\u003cli\u003eMulti-colour LED indicator for temperature status.\u003c\/li\u003e\n\u003cli\u003e2-hour drying function with automatic shut-off.\u003c\/li\u003e\n\u003cli\u003eCompatible with external timers and retains settings when powered off.\u003c\/li\u003e\n\u003cli\u003eDiscreet underside control button and miniature front-facing LED panel.\u003c\/li\u003e\n\u003cli\u003eThe shape of the element is 100% in line with the upright bar (collector) on the radiator or towel rail for a completely seamless look.\u003c\/li\u003e\n\u003cli\u003eThere are five different shape options:\n\u003cul style=\"margin-bottom: 0;\"\u003e\n\u003cli\u003eONE D (D Profile)\u003c\/li\u003e\n\u003cli\u003eONE K (square profile)\u003c\/li\u003e\n\u003cli\u003eONE R (round profile)\u003c\/li\u003e\n\u003cli\u003eONE P (rectangle profile)\u003c\/li\u003e\n\u003cli\u003eONE T (trapezium profile)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eWhen matching with Terma manufactured models (as seen in the images) it will be a seamless look as these are the profiles used by Terma.\u003c\/li\u003e\n\u003cli\u003eIt is possible to fit these elements in other radiators, but the collector shape and size may differ, meaning the element may be slightly narrower or wider.\u003c\/li\u003e\n\u003cli\u003eThis is the external version of ONE, a standard element which can be retro-fitted and screwed into any radiator.\u003c\/li\u003e\n\u003cli\u003eThe internal ONE version has its electric components integrated inside the radiator and cannot be ordered separately - this has to be ordered at the same time as you order the electric towel rail.\n\u003cul style=\"margin-bottom: 0;\"\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.theheatison.uk\/collections\/electric-towel-rails-with-discreet-hidden-element\"\u003eClick here to see complete electric towel rails with INTERNALISED ONE\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"tio-section-title\"\u003eremote control\u003c\/h3\u003e\n\u003cul style=\"margin-bottom: 30px;\"\u003e\n\u003cli\u003eIncludes an Infrared (IR) receiver for use with Terma TTIR portable thermostat\/controllers or DTIR wall mounted controllers (sold separately).\u003c\/li\u003e\n\u003cli\u003eTTIR is a portable thermostat and 7-day timer.\u003c\/li\u003e\n\u003cli\u003eDTIR is a 24-hour wall mounted timer device.\u003c\/li\u003e\n\u003cli\u003eThe infrared controller adds additional functions and more convenient control options.\u003c\/li\u003e\n\u003cli\u003eThis system allows remote adjustment without needing direct access to the element.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"tio-section-title\"\u003eelement specifics\u003c\/h3\u003e\n\u003cul style=\"margin-bottom: 30px;\"\u003e\n\u003cli\u003eInternal probe lengths vary depending on the selected wattage — refer to the diagram in the image gallery.\u003c\/li\u003e\n\u003cli\u003eStraight cable supplied, no plug.\u003c\/li\u003e\n\u003cli\u003eIPx5 rated, suitable for use in bathroom environments.\u003c\/li\u003e\n\u003cli\u003eClass 1 electrical rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"tio-section-title\"\u003ecolour selection\u003c\/h3\u003e\n\u003cul style=\"margin-bottom: 30px;\"\u003e\n\u003cli\u003eWe can paint the ONE element in a bespoke colour of your choice.\u003c\/li\u003e\n\u003cli\u003eRAL palette – any RAL colour which can be made standard \"silk\", \"matt\" or extra super matt \"soft\".\u003c\/li\u003e\n\u003cli\u003eSpecial colours – any Terma special colour (reference by name).\u003c\/li\u003e\n\u003cli\u003eTerma wet paint colours – a range of premium colours which are more metallic in finish.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"tio-section-title\"\u003ewattage selection advice\u003c\/h3\u003e\n\u003cul style=\"margin-bottom: 30px;\"\u003e\n\u003cli\u003eChoosing the correct wattage heating element is essential for safe and effective performance.\u003c\/li\u003e\n\u003cli\u003eSelect an element with a wattage as close as possible to the radiator’s central heating (hydronic) output measured in watts.\u003c\/li\u003e\n\u003cli\u003eIf the output is listed only in BTUs, convert using the formula: BTUs ÷ 3.41 = Watts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"tio-section-title\"\u003einstallation\u003c\/h3\u003e\n\u003cul style=\"margin-bottom: 30px;\"\u003e\n\u003cli\u003eFull installation instructions are supplied in the accompanying manual, but the following points are useful to read in advance.\u003c\/li\u003e\n\u003cli\u003eThe element must never be switched on in open air — it must be fully submerged in the heating medium to operate safely.\u003c\/li\u003e\n\u003cli\u003eThe supplied cable is 1.5 metres long and may be shortened or extended (daisy-chained only) as required.\u003c\/li\u003e\n\u003cli\u003eHeating elements that have been fitted cannot be accepted for change-of-mind returns.\u003c\/li\u003e\n\u003cli\u003eWhen installing the element, always use a spanner on the metal neck. Do not apply force to the plastic head.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"tio-section-title\"\u003eelectrification advice\u003c\/h3\u003e\n\u003cul style=\"margin-bottom: 30px;\"\u003e\n\u003cli\u003eBefore electrifying any towel rail or radiator, confirm with the manufacturer that the model is suitable for use with a heating element.\u003c\/li\u003e\n\u003cli\u003eNot all towel rails or radiators are compatible, as internal design and heat circulation vary between models.\u003c\/li\u003e\n\u003cli\u003eInstalling an element into an unsuitable radiator may lead to poor performance or failure, which would not be a fault of the element.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"tio-section-title\"\u003edual fuel advice\u003c\/h3\u003e\n\u003cul style=\"margin-bottom: 30px;\"\u003e\n\u003cli\u003eWhen using this element as part of a dual fuel installation (electric in summer, central heating in winter), the towel rail should be bled regularly.\u003c\/li\u003e\n\u003cli\u003eAir can gradually build up inside the system, which may cause overheating if the element operates without sufficient water circulation.\u003c\/li\u003e\n\u003cli\u003eA heating element must never be operated dry, as this can cause excessive surface temperatures and damage towels or clothing.\u003c\/li\u003e\n\u003cli\u003eThis works on the same principle as a kettle — never run it without water inside.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"tio-section-title\"\u003eguarantee \u0026amp; replacement\u003c\/h3\u003e\n\u003cul style=\"margin-bottom: 30px;\"\u003e\n\u003cli\u003eBacked by a 2-year manufacturer’s warranty.\u003c\/li\u003e\n\u003cli\u003eThe typical lifespan of a heating element is between 4 and 7 years, depending on usage.\u003c\/li\u003e\n\u003cli\u003eAt end of life, the external ONE heating element can be fully unscrewed and replaced as a single complete unit.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Terma","offers":[{"title":"120w","offer_id":51966493950289,"sku":"WEODL01-TCROP","price":112.0,"currency_code":"GBP","in_stock":true},{"title":"200w","offer_id":51966493983057,"sku":"WEODL02-TCROP","price":112.0,"currency_code":"GBP","in_stock":true},{"title":"300w","offer_id":51966494015825,"sku":"WEODL03-TCROP","price":112.0,"currency_code":"GBP","in_stock":true},{"title":"400w","offer_id":51966494048593,"sku":"WEODL04-TCROP","price":112.0,"currency_code":"GBP","in_stock":true},{"title":"600w","offer_id":51966494081361,"sku":"WEODL06-TCROP","price":112.0,"currency_code":"GBP","in_stock":true},{"title":"800w","offer_id":51966494114129,"sku":"WEODL08-TCROP","price":112.0,"currency_code":"GBP","in_stock":true},{"title":"1000w","offer_id":51966494146897,"sku":"WEODL10-TCROP","price":112.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0906\/4949\/3841\/files\/13_heating-element-one-d-d-profile-any-colour_54bb4fc5-3279-4779-9e03-52c7581f3e21.jpg?v=1758784473","url":"https:\/\/www.theheatison.uk\/products\/heating-element-one-d-d-profile-any-colour","provider":"the heat is on","version":"1.0","type":"link"}