Recently picked up my AHS130 coal stoker. That was quite a drive from Saylorsburg PA. I've been learning as much as possible from this site (thanks to those who helped me choose the AHS). Haven't had a chance to install the unit - I have an old Buderus wood/coal boiler still hooked up in line with my oil burning Weil Mclain. Once I remove the beast, the AHS will go in.
Had some questions about the install and the chimney:
The old system has piping to and from the Weil Mclain with large shut off valves on both ends. The original owner used the valves to completely separate the unit during the summer months. There is only one circulator that was used for both the Weil McClain boiler and the old Buderus. Can I get away with just one circulator for the AHS and just hook up where the Buderus was disconnected? I can send pics if that would help....
Also had a chance to inspect the chimney which is brick (with clay lining). The flue will only be used for the coal burning system. I'm no professional, but it appears that the top 2-3 sections of the clay lining as well as the outside of the clay flue are scaling/peeling away. I was able to pull very thin long sections off of the clay flue from the inside. The lining appears to have a lot of meat left to it but the flaking/peeeling of the top 2-3 sections concerns me. The rest of the flue appears solid with no flaking. Does the clay lining need to be replaced? If so, how painful in the pocket is it going to be? The remaining 3 flues show no evidence of scaling/flaking. The wood/coal buderus may have been the cause but i'm not sure.
Any help advise aprreciated.