Are they lining your chimney too at that price? Is your install exceedingly difficult? That does sound VERY steep! Heck, even with all the maximum options added from here: http://kedelboilers.com/meet-kedel/our-pellet-boiler/ for the 68k model with the big bag and I can not add up to $22k! Who is the installer?
That 22K price tag is exactly why I had called you out when you said you got yours for less that a Harman. YOU got lucky! I have heard of similar quotes.
AND the unit only costs Re-Vision about 4K.