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Thread: Heater Elements... Tefel coated & Titanium?

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    Question Heater Elements... Tefel coated & Titanium?

    I'm looking to replace a Balboa M7 5.5KW heater element. What is the difference (which is better and why) between Tefel coated & Titanium? Also, what is the cost of each.

    I searched the web but could not find any info comparing the two.

    Thank you for the help

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    pabeader's Avatar
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    Re: Heater Elements... Tefel coated & Titanium?

    This might be a place to start: Balboa M7 - Spa Depot

    This place has some info. Take it with a grain of salt: Flow Thru Heater Elements | Incoloy - Titanium| Hot Tub Canada
    Bob - Palm Beach by San Juan Pools. approx 5000 gals., Pentair 320 cartridge filter (all new guts installed by me), Goldline SWG, 'New to me' Kreepy Krauly Sand Shark, Intermec 104 Timer Test kit: TF-100 w/Speed Stir

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    Re: Heater Elements... Tefel coated & Titanium?

    Quote Originally Posted by pabeader View Post
    This might be a place to start: Balboa M7 - Spa Depot
    ... I don't see any info on the page that explains the differences between then, what is better, etc.

    If anyone has direct experience or knowledge of these two types I'd appreciate you sharing... I don't need links to retailers, I already know 100 different places I can purchase.

    thx

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    Re: Heater Elements... Tefel coated & Titanium?

    Sorry about that. Only did a quick scan.
    The second link seems to have some info though.
    Bob - Palm Beach by San Juan Pools. approx 5000 gals., Pentair 320 cartridge filter (all new guts installed by me), Goldline SWG, 'New to me' Kreepy Krauly Sand Shark, Intermec 104 Timer Test kit: TF-100 w/Speed Stir

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    Re: Heater Elements... Tefel coated & Titanium?

    Unless I'm completely mistaken there's no such thing as tefel coating. It should be Tefzel (ETFE). It's a Teflon type coating. It's probably a toss up as to which would be better. Titanium would be as long as it's not just Titanium plated due to the heat generated by the wire.

    I know you asked for people with direct experience and as I have no direct experience with these heaters, feel free to discard the above advice.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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    Re: Heater Elements... Tefel coated & Titanium?

    Tefal is a ceramic based coating (you find it on high-end cookware). So the element is basically a ceramic coated Incoloy metal. Incoloy is a corrosion resistant metal alloy made mostly of iron, nickel, cobalt, chromium and small amount of copper with some trace elements in it. It's probably the Incoloy-DS alloy as that is used in heat-cycle applications. Titanium heaters are as they sound, made of titanium metal.

    Titanium heater exchangers are found in high-end (read $$$$) gas pool heaters. Titanium is a very stable metal in water that forms a strong passive oxide layer that can withstand pretty corrosive environments. There's almost no chance of the heater element galvanically corroding.

    Ceramic coated metals are fairly inert as well but they can suffer from thermal stress-induced cracking of the ceramic layer. Once the ceramic film is compromised, the Incoloy is exposed to the water environment. Incoloy should be able to withstand spa water conditions but it will not perform as well as titanium.

    If I had the choice and the money, I go for the upgrade option and install a titanium element.
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: Heater Elements... Tefel coated & Titanium?

    Tefal cookware can also come in a Teflon-coated forms as well (typically marketed as Non-stick) but I doubt, or would hope, they are not using a Teflon coated heater element for a spa. I don't see that surviving very well.

    My vote is for Titanium in any case.
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: Heater Elements... Tefel coated & Titanium?

    Apparently tefel is a special coating the pool industry tradenames as is seen here in this clip from a retail site:
    4 kW, 240V Tefel Coated Incoloy (coated nickel alloy) - p/n: 25-4041-ET-BI - $41.99 - (1 kW when wired to 120V)
    5.5 kW, 240V Tefel Coated Incoloy (coated nickel alloy) - p/n: 25-4034-ET-BI - $41.99 - (1.4 kW when wired to 120V)


    But I have no knowledge beyond what I read there...
    Bob - Palm Beach by San Juan Pools. approx 5000 gals., Pentair 320 cartridge filter (all new guts installed by me), Goldline SWG, 'New to me' Kreepy Krauly Sand Shark, Intermec 104 Timer Test kit: TF-100 w/Speed Stir

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