Hi folks, I'm a longtime lurker who made the leap this fall into the world of wood heating. My weapon of choice is a Harman PB105 pellet boiler. We kept our old heating unit, a cast iron Burnham oil boiler, as backup.
So far we're thrilled with the unit. We had a little problem with over-pressurization but solved it with a larger expansion tank. I had a pro do the installation, BTW.
![Pellet boiler up and running Pellet boiler up and running](https://www.hearth.com/talk/data/attachments/80/80827-96310482e50cc9c37c969f4067ef857f.jpg)
So far we're thrilled with the unit. We had a little problem with over-pressurization but solved it with a larger expansion tank. I had a pro do the installation, BTW.
![Pellet boiler up and running Pellet boiler up and running](https://www.hearth.com/talk/data/attachments/80/80827-96310482e50cc9c37c969f4067ef857f.jpg)