Wow it's hard to beat $250, well done
We are just starting to work with the UFT, so no, we don't have a lot installed yet. Based on the other firetube model's track record though, and the fact that I'm pretty sure either HTP is ripping off the by all accounts excellent IBC version (or there is some sharing going on... must be...) I'm expecting good things.
I can't ignore an 8k min mod though... we're definitely going to be giving this one a good run.
It does get tiresome fighting the "bigger is better" crowd... luckily I've stopped getting funny looks from our guys when I specify a small boiler!! Keep fighting the good fight, sir.