Afternoon everyone,   I have been dipping into the BuildHub Forums for quite a while and found it a great resource. Now though I think I am at the point in our build to ask for some direct opinions and ideas.   Briefly: We are building a new home based around a class Q barn conversion. Currently we are up to DPC and having to make some decisions which I could do with some help with.   My main consideration at this point is heating. We will in all likelihood be