First, thank you all for the info that you post on here. It has been very informative. My husband and I have finally decided to replace our 30 year old tarm with a gasification boiler. We are getting a Biomass 80 that should be delivered in a week or two. We had planned on just pulling out the Tarm and replacing it with the Biomass, but realized that some things aren't plumbed right and the piping is too small for the new boiler. I have attached a basic schematic just as a starting point for what we have come up with for a piping layout. We have a friend that is a plumbing and heating guy but hasn't dealt with wood boilers that much so he can't help a lot with the design but can help with the install if needed. I haven't included in the design check valves or places to fill and drain the system or purge the air. I just wanted to get a basic idea first if what we were thinking was even on the right track. Pressurized storage is out and we have the materials to build a storage tank. This will be going in the basement as we already have some of the plumbing that won't be changed such as the radiant heat zones or how they are plumbed from the manifold out. (At least I hope not.) Any suggestions for a different way to do this would be appreciated or if there are any glaring errors that we don't know about. Thank you all.
Shelly
Shelly