The comparable MRC kalkreactor is $275, and it is smaller and can only stir 4 cups of kalkwasser. The Ecotech is $350, larger, modular (base stirrer is entirely seperate from the reaction chamber), and can stir a whooping 2 pounds of kalkwasser. The Ecotech uses more acylic materia (obviously since it is larger). The stirrer is also on a pot and "infinitely" adjustable. I don't think Ecotech's pricing is out of line IMHO.
Here's the advantages you get with the Vortech over the Tunze:
- Zero risk of electrical shock.
- Modular, easily servicable parts by users. If one thing breaks, you can replace that part and not have to ditch the whole unit.
- uses less electricity (plugged into my wall "wattmeter", it registers 27 watts)
- No heat transfer to tank (for all intents and purposes)
- Battery backup that lasts 12-24+ hours (i appreciate this a lot).
- wireless controller
- much much smaller then the Tunze
- no mounting brackets to deal with. I've heard many people tell stories of Tunzes falling over and blasting sand (and anything else). Can't happen with Ecotech.
If this isn't worth $15* more then the Tunze 6100, then get the Tunze 6100
That is assuming the Ecotechs will be $350
Hopefully it's closer to $300, but I wouldn't fault them for starting the price a bit higher then coming down (supply and demand + economies of scale issues).
*edit: It's been brought to my attention that if you buy the magnetic bracket for the Tunze, the 6100 ends up costing more.