{"product_id":"jbl-protemp-heater-s50-s100-s150-s200-s300","title":"JBL ProTemp Heater ( S50\/S100\/S150\/S200\/S300 )","description":"\u003cp\u003eFeature,\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePlastic guard protects fish such as suckermouth catfish from direct heat.\u003c\/li\u003e\n\u003cli\u003eComes with dry run protection (turns off automatically when the water level drops or the heater is removed from the water)\u003c\/li\u003e\n\u003cli\u003eFully submersible and very robust 2 mm safety glass.\u003c\/li\u003e\n\u003cli\u003eDirect temperature selection in °C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eDiameter of glass: 29 mm\u003c\/li\u003e\n\u003cli\u003eDiameter on top: 36 mm\u003c\/li\u003e\n\u003cli\u003eDiameter with cage: 33 mm\u003c\/li\u003e\n\u003cli\u003eDiameter with cage + suction cup: 36 mm\u003c\/li\u003e\n\u003cli\u003eLength incl. cage: 220 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ :\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen I touch the heating cable under water, it is only warm.\u003c\/p\u003e\n\u003cdiv class=\"answer\"\u003e\n\u003cp\u003eIt is by all means correct that the JBL ProTemp S heating element only emits what is perceived to be pleasant warmth by the hand. The surrounding water causes the heat to be conducted away very quickly and passed on to the water. Therefore, the heating element is functioning properly. If it is taken out of the water, the glass immediately becomes very hot. The safety shut off is activated immediately. Nevertheless, the resulting heat must escape outside the water after the heating is switched off, which may cause the heater guard to become deformed, as there is no water to cool it. The safety thermoswitch in JBL ProTemp S heaters is by no means intended as an automatic control device which makes it unnecessary to pull the plug before a water change and, instead, is merely an additional safety precaution against accidents involving electricity. Due to its design, the heater may become very hot before the thermoswitch turns it off.\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"clear\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"question\"\u003eIs it possible that there is a series of JBL ProTemp S heaters with in\/out intervals that are not adjusted properly?\u003c\/div\u003e\n\u003cdiv class=\"answer\"\u003e\n\u003cp\u003eAccording to technical specifications, our heaters have a control accuracy of +\/- 05 °C. Taking measuring errors in temperature measurement for aquarium operation into account, the switching accuracy should be approx. 1 to max. 1.5 °C. If a heater has deviations of 5-7 °C, there is usually only one possible cause.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eThe heater is not adjusted properly, which can be determined by checking whether the heater has or has not a push button for readjusting (JBL has several different series). Otherwise it is defective. The heater is mounted in a spot that does not have sufficient flow of water.\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"clear\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"question\"\u003eDeformations have occurred on the protective baskets of the ProTemp S heater. What is the reason and what can I do about it ?\u003c\/div\u003e\n\u003cdiv class=\"answer\"\u003e\n\u003cp\u003eThe protective baskets protect the ornamental fish against burns from the heating element.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eIf the heater is in operation it gives off heat to the surrounding water. With calcareous water scale (precipitation of calcium carbonate) can form where the glass meets the water and this reduces the thermal dissipation. An excessive formation of scale may cause heat accumulation which can lead to overheating and a deformation of the protective baskets.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eWith hard tap water a regular decalcification of the heating elements e.g. with JBL Clean A or JBL pH Minus is recommended.\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"clear\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"question\"\u003eDoes the thermostatic switch in the JBL ProTemp S heater mean it is no longer necessary to disconnect the mains by pulling out the mains plug before a water change ?\u003c\/div\u003e\n\u003cdiv class=\"answer\"\u003e\n\u003cp\u003eThe thermostatic switch in the JBL ProTemp S heater does not mean that it is no longer necessary to disconnect the mains by pulling out the mains plug before a water change. It is just an additional safety precaution against accidents with electricity. Due to its construction the heater can get very hot before the security switch switches off. This may cause a deformation of the protective basket.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Simply Aquatics","offers":[{"title":"S50  50watt","offer_id":42656958316634,"sku":null,"price":47.5,"currency_code":"SGD","in_stock":true},{"title":"S100 100watt","offer_id":42656958349402,"sku":null,"price":47.5,"currency_code":"SGD","in_stock":true},{"title":"S150 150watt","offer_id":42656958382170,"sku":null,"price":47.5,"currency_code":"SGD","in_stock":true},{"title":"S200 200watt","offer_id":42656958414938,"sku":null,"price":53.0,"currency_code":"SGD","in_stock":true},{"title":"S300 300watt","offer_id":42656958447706,"sku":null,"price":53.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0257\/3339\/8602\/files\/jblprotemp1.webp?v=1765538406","url":"https:\/\/simply-aquatics.com\/products\/jbl-protemp-heater-s50-s100-s150-s200-s300","provider":"Simply Aquatics","version":"1.0","type":"link"}