Good afternoon Hearth community. Looking for a little insight on why my Tarms solo 30 wood boiler keeps overheating. It just started with the last two years so I reached out to Scott at Tarms Bio Heat in Orford, New Hampshire. We went over some of the problems we thought could be the issues, and we narrowed it down to replacing the tamover mixing valve. so I fired up the wood boiler And overheated within the first hour with very little wood in the firebox. I know this is a longshot, but does anybody know of a service tech that knows how to install or work on these particular boilers from what I’ve been reading there isn’t any. Could use the help. Please advise.