First- just to make clear- I have no financial connection to Econoburn.
Along with being overall superbly well designed and constructed in a way that resembles commercial/ industrial/ military rather than residential equipment, the Econoburn's entire system of "parts" other than the boiler vessel and outer cabinet, are standard-item commercial/ industrial components.
As a result, even if Econoburn were to exit the business (which I have no reason to expect)(their parent, Dunkirk Boiler, is a very well established company), parts such as the PLC controller, relays, blower, etc., should be available- most likely for several decades. Since these parts are commercial/ industrial type components to begin with, there should be good reason to hope that they last a long time in any event. Plus, not only should they remain available, they should be available at non-premium prices (I've had too many experiences, too, with appliances, where the main circuit board had a failure- and would have had to be replaced at a very spendy cost- even though the major parts and systems of the appliance still seemingly had plenty of useful life).
This was one of several factors in my decision to go with the Econoburn. I have had too many other experiences with products that seemed excellent at the time of purchase, but which were rendered un-usable (or financially ridiculous to repair) -- long before what should have been their useful life -- by the failure of one relatively minor part or system- which, by that time, had become unavailable for replacement.
Also, whenever I called Econoburn with questions during my planning and install, they were very helpful and glad to help. One time, the Vice President even got on the phone with me when the tech. person at the time was on the road and un-reachable- and the V.P. really knew the product/ technical aspects, and cheerfully took the time to speak with me.
An investment as substantial as a wood gasification boiler should have a life measured in multiple decades, and for me at least, I found it very welcome to be able to have high confidence that parts and sub-systems should be supported by available parts for a very long time.
Note- I am not "dis-ing" EKO, Tarm/ Bioheat, WoodGun, Garn, etc.-- each have their own variation of advantages and trade-offs. They all seem like good products in their own way for particular purchasers' needs and preferences. I'm just suggesting that 'sticker price' should not be the only driving factor (the Garn is another excellent example of this- price of the unit may seem high, but, if you have the right place to put it, by the time you account for the fact that it has its own large thermal storage, and needs little in the way of controls/ piping/ circulators when compared to other wood boilers, it may well cost less, on a whole-system-basis, than units that look less expensive when considering only the boiler.