Harm of scale to electric tubular heater of water tank:
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When determining the single power and material, we will also ask the customer a very important question: how is the water scaling in the customer's area. This can be judged from the scale in the hot kettle that usually burns water. You must ask about the relationship between the scaling and the power and material of the electric tubular heater of the water tank. Today, we will discuss the harm of the scale to the electric tubular heater of the water tank.
Scale is calcium carbonate, its acid will corrode metal materials, but as long as water heating will produce scale, so scale is the natural enemy of water tank electric heating pipe. When the scale adheres to the surface of the electric tubular heater of the water tank for a long time, it will corrode the shell of the electric tubular heater and make it appear small holes. In this way, water will enter into the electric tubular heater of the water tank, which will make the magnesia powder moist, weaken its insulation and cause breakdown phenomenon. In this way, the electric heating pipe of the water tank can not be used.
On the other hand, when the scale covers the surface of the electric tubular heater of the water tank, it will hinder the heat conduction of the electric tubular heater. When the surface temperature of the electric tubular heater of the water tank can not be transmitted out in time, the surface temperature of the heating pipe will rise, and the internal temperature will inevitably increase. When the internal temperature is high to a certain extent, the resistance wire will be burned out, and even the tube burst phenomenon will occur. This will end the service life of the electric tubular heater of the water tank, and the scale will seriously affect the service life of the electric tubular heater of the water tank.
From the above explanation, we know that scale can corrode the electric tubular heater and hinder heat conduction. Therefore, before ordering the electric tubular heater of the water tank, we should decide whether to choose the ordinary 304 material or the corrosion-resistant 316 material or the water tank electric tubular heater with anti scaling coating according to the scale condition.
At the same time, the scale also determines the power per meter design of the electric tubular heater. The higher the power per meter, the greater the surface load, the faster the scaling speed. Therefore, if we reduce the scaling speed on the surface of the electric tubular heater of the water tank, we will reduce the power per meter, which will increase the cost of the electric tubular heater of the water tank. Therefore, the harm of scale to the water tank electric heating pipe not only affects the service life of the water tank electric heating pipe, but also affects the unit cost of the water tank electric heating pipe.
We get quite a few questions about heating cable here at O.E.M. Heaters: what exactly it is, how to use it, what it's useful for, and so on. We've put together this page, and the articles that are linked here, to try to answer any questions you might have, so you can feel confident that you're getting the right cable and using it properly. We'd like to think of this as "Everything You Need to Know about Heating Cable." If you've got a question that isn't answered here, feel free to call us and ask at (866) 685-4443, or email us – and your question might even become the subject of our next article here.
Heating cable is, simply put, a cable that gets hot when you run current through it. It's also known as heat trace cable, heat cable, heater cable, and other similar names, but it's different from heating tape and heating cord (see the question below to learn about the differences). There are many different styles of heating cable that will reach various different temperatures and serve various purposes; we have a broad selection that you can browse in our store. We also have some information about the differences between, and uses of, different styles of heating cables.
Back to topFull article: Heat Tape versus Heating Cable: What's the Difference, and Which One Do I Need?
Despite the similarity in names – and even though heating cable is often sold for gutters and roofs under the name "heat tape" – there is a distinction. We've summed up the most important differences between them in the chart below. To read more in depth about the specific characteristics of each one, check out the full article.
Heating cable
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Heating tape
Heating cord
Lower power densities and temperatures, with maximum temperatures ranging from 150°F to 500°F, and including low-intensity cables well suited for freeze prevention. Higher power densities and temperatures, ranging from tapes with a maximum of 305° up to very-high-temperature tapes rated for up to 1400°F (760°C). Power densities and construction comparable to those of heating tape. Available with housing styles that are resistant to water and many chemicals, and suitable for outdoor use. Some styles are resistant to moisture or suitable for use on electrically conductive surfaces, but they must not be submerged, and are generally intended for indoor applications. Fairly stiff (about as flexible as a garden hose), but very good for spiraling around pipes. Highly flexible to conform to tight contours and odd shapes. As flexible as heating tape, but more forgiving of imprecise wrapping. Somewhat rounded, resembling type NM or Romex™ cable. Power density measured in watts per foot. Flat in cross-section. Power density measured in watts per square inch. Round in cross-section. Many styles can be cut to length, and terminations added, in the field. Sold in fixed lengths from 2 to 20 feet (depending on the style). Built to order or sold in fixed lengths from 3 to 24 feet.A lot of folks come to our website because they're looking for a more reliable heating cable for roof de-icing. Typically, the kits that are available in hardware stores (from the mom-and-pop place on the corner all the way up to the big-box retailers) will do a good job for a season, but come next year it's anyone's guess whether they'll start working again. We have a simple solution to that problem in stock: the SpeedTrace Roof & Gutter Snowmelt Kit. This is a kit based around the popular and reliable SpeedTrace family of self-regulating heating cables – these cables are professional-grade, durable products and, with good treatment, we've known them to last a decade or more in use. Combine that with the hassle avoided by not having to go up on the roof every year or two to replace the cable, and the SpeedTrace kit is well worth the investment.
Adding any heating cable kit to your roof is a somewhat complicated project, but the SpeedTrace kit simplifies matters by including everything you need, so you don't have to worry about whether you've ordered the right termination kit or go out hunting for downspout hanger brackets. All the information you should need to install it is contained in the kit's installation manual (PDF), which you can also find on the ordering page for any of the kits. The manual also shows you how to find out what size kit you need, but for quick reference we have a chart on the general SpeedTrace kit page.
Back to topLike with roofs, we offer an all-in-one kit for freeze protection on pipes created around SpeedTrace self-limiting heating cable. You can also order SpeedTrace on its own (in either standard or Extreme varieties, with different watt densities) or, if you feel comfortable with terminating a circuit, you can use one of our cut-to-length cables, such as Freezstop, with a termination kit. If you have any questions about how to install cable on your specific pipes, feel free to give us a call at (866) 685-4443, and we'll be happy to help.
Back to topFull article: What "Self-Regulating" Really Means
Unfortunately, no. "Self-regulating" is a somewhat misleading term that was coined by the original inventor of the product. A more accurate term we like to use is "self-limiting." Basically, what it means is that a self-limiting cable cannot overheat itself to the point of damage to the cable. That doesn't, however, mean that it won't get hotter than necessary for whatever it is you're heating! Low-temperature self-limiting heating cables usually top out at about 160°F – which is to say, a lot hotter than you need it if you're just using it to keep pipes from freezing. The cable will draw a lot of energy trying to get to its top-out temperature, unless you add a temperature controller.
A controller doesn't have to be extremely costly, though. If you're running cable on DC, we recommend the SoliStat™, which doesn't burn out like most thermostats do when applied to DC circuits. For AC circuits, we have many different controls that you can browse in our store.
Back to topFull article: Minimum and Maximum Heating Cable Lengths: An All-in-One Reference
The short answer is, "It depends." We've gathered charts that will help you answer that question for every style of heating cable we sell, at our all-in-one guide to minimum and maximum cable lengths. You can also check the cable's spec sheet – we have these available on our website as downloads from each cable style's ordering page.
Back to topWe talk to quite a few people who are interested in running heating cable from a solar array – for example, in remote oilfields where some machinery components need to be heated to an appropriate temperature in order to work. This is exactly the sort of thing that low-voltage heating cable is good for, but you may need more power or a different set-up than you planned on. We have a rule of thumb that we use here to find the numbers for a solar-powered heating set-up that will work like you need it to: the Rule of Three for solar heating. It says that:
This may seem like an excessive amount of redundancy, but it's been our experience that with any smaller set-up, you risk power failures. The Rule of Three protects you against long cloudy spells and short northern days. A proper solar array set-up will pay its investment back in saved downtime.
The company is the world’s best Self-Regulation Ptc Element Heater supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.
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