Hello Forum; I hate to ask a question because it only leads to another question instead of an answer. What is a load or legacy system info?
That being said........some time ago (in the 90's) I built a 1500 sq ft garage; I repair broken cars & trucks & any thing else. I build radient floor heat. I tried solo, electric, & settled with oil fired boiler ($.92 a gal) life was good. In 2007 the price went to over $5, long story but I bought a corn boiler. The middle of winter I installed it; basicly plumbed it into my existing system connected with 1 inch copper piping. 1st year I burned corn; 2nd yr I burned a mix of pellets & corn. I tried to scientifically find the right mix, ended up filling the hopper with a bag of pellets, bag of corn,bag of pellets, bag of corn; untill the hopper was full; then did the same next day. I slowly tried to wean the corn out but always ended up plugging the auger. Thats when I found out about the retro kit; now life is good again. I have also over the years expanded my shop to over 3000 sq ft; all with radient floor heat and I have about 4 zones. In the mix of things I have added a hot water tank, space heater , and roof snow melt; all hot water. Needless to say the corn boiler can't keep up (my fault being dumb); So I would like to improve the efficiency a bit, without tearing everything out or spending a fortune. I might be over thinking this project. Its not pretty but I can say when the outside temp is -5 the inside temp is no less than 65F. Not making excuses, just trying to work with what I have

Brose down a bit and you will find a series of books that I recommend you find and read - you will no longer be "challenged" and in a far better position to make a choice of both system refurbish and you will also be able to weed out the good and bad advice and [professional ?] assistance!

Kind Regards
Sting

I can't find the list of books? TKS

Leave me some negative Karma to improve my ranking of those that lay next to their dish in shame

and Ill see if I can dig the list our later today!

Two of the most recommended books here:

shop.serviceroundtable.com/store ... stems.aspx

shop.serviceroundtable.com/store ... Easy-.aspx

I would also recommend a couple of Dans books here. Primary and secondary plumbing and pumping away. Both helped me on my boiler project and recommended but Sting.

www.heatinghelp.com/categories/Hot-Water-Heating-Books/26/1

Good stuff just don't let anyone borrow them as you may not get them back.

What boiler do you have?

Tim

Also lots of info in the old forum and here if you don't mind some reading. www.hearth.com/talk/forums/the-boiler-ro...rs-and-furnaces.13/. The people on hearth are partial to their chunk wood gasifiers but the plumbing is the same.

I have the A-maizing-heat with adjustable controls converted to burn pellets

Sorry, it is impossible to get advice here. Only book lists. I suggest you try the forum at www.heatinghelp.com/