Hello everyone. Long story short, I recently moved and the OWB I used to heat my old house will be used to heat my detached garage. I am in the middle of building a system. Fun exciting times!
I did heat loss calculation and I am right around 30,000 BTUs for the current garage.
At some point I am increasing my shop size over the next two years and what was 30,000 BTU's will become approximately 90,000 BTUs. That number is correct as I'm adding on quite a bit of space.
In the end I also plan to tie my house into this system so I'm guessing I'll be somewhere around 160,000 BTUs total once the plan is complete.
In the end all sorts of things need upgraded including my boiler and HX as they will become the constraints. I plan to upgrade to a gasser.
My question is instead of building my system to what I need now, is there any issue I’m not seeing with building my system to how I want it for the long term? I.e. Because my HX and supply lines are 1” I was going to use 1” Copper for everything however I quickly realized I can build a system out of 2” Black pipe for cheaper than my system with 1” Copper. Granted I can build the system on the cheap and get by now, but I wan to do things right.
So I was going to build everything from either 1-1/2” or 2” and then bush down to the 1” lines on the HX so that over time I can replace the HX and the Boiler. I think I’ll have to re-consider the circulation pump sizing as well.
In the end there will be 500-1000 gal pressurized storage involved.
Anyone else have a heat loss of 160,000 BTUs and are covering it just fine with 1-1/2 Black Pipe Lines?
I did heat loss calculation and I am right around 30,000 BTUs for the current garage.
At some point I am increasing my shop size over the next two years and what was 30,000 BTU's will become approximately 90,000 BTUs. That number is correct as I'm adding on quite a bit of space.
In the end I also plan to tie my house into this system so I'm guessing I'll be somewhere around 160,000 BTUs total once the plan is complete.
In the end all sorts of things need upgraded including my boiler and HX as they will become the constraints. I plan to upgrade to a gasser.
My question is instead of building my system to what I need now, is there any issue I’m not seeing with building my system to how I want it for the long term? I.e. Because my HX and supply lines are 1” I was going to use 1” Copper for everything however I quickly realized I can build a system out of 2” Black pipe for cheaper than my system with 1” Copper. Granted I can build the system on the cheap and get by now, but I wan to do things right.
So I was going to build everything from either 1-1/2” or 2” and then bush down to the 1” lines on the HX so that over time I can replace the HX and the Boiler. I think I’ll have to re-consider the circulation pump sizing as well.
In the end there will be 500-1000 gal pressurized storage involved.
Anyone else have a heat loss of 160,000 BTUs and are covering it just fine with 1-1/2 Black Pipe Lines?
