I have an 18x48 evaporator that has a 7 inch pipe can I use an adapter to connect it to my existing 6 inch
Pipe with out creating an issue
Thanks
I have an 18x48 evaporator that has a 7 inch pipe can I use an adapter to connect it to my existing 6 inch
Pipe with out creating an issue
Thanks
What brand of evaporator is it? The Canadian brands that I’ve used (CDL and D&G) have pretty small fireboxes. My calculations suggest that going from 7” to 6” pipe would result in a loss of just over 25% of the capacity of the flue. Not sure how much that would affect its operation. You may not be able to get as hot a fire as you would otherwise but that may not end up mattering too much. You could try it for a season and then change it out if you were unhappy.
60ish taps on buckets
D&G Sportsman 18x63
Turbo RB15 RO Bucket
That would be almost the same as a 24 x 36 small brothers barrel evaporator and those have a 6 inch pipe. I agree with ecobeck, you can try it and if it reduces you drafting ability in your firebox, then you will know.
2004 - 2012 2x3 flat pan 25 to 60 taps
2012 2x3 new divided pan w/draw off 55 taps
2018 - didn't boil surgery - bought new evaporator
2019 new SML 2x4 raised flue high output evap. 65 taps
made 17 gal. syrup
2020 - only put out 53 taps - made 16.25 ga.l syrup
2021 - Didn't work out
2022 - 25 taps on bags / 8 taps on 3/16's line - late start
I'd say if you have forced air you will most likely be fine. If you are depending on natural draft id stay away from reducing because it may equal many many more hours in the sugar house due to the fact your fire will not get as hot.
If you are relying on natural draft and decide to reduce down to 6 inch before changing the whole system. You could try and extend your chimney pipe out the roof a few more feet to make up for some lost draft. When i added a few feet to my 8 inch stove pipe to clear the cupola it made a noticeable difference in the roar of the fire once i shut the door. I had a 3ft base stack and 10ft of chimney before adding another 3ft section at the top. Not sure if this is the right approach for your set up, but it's cheaper than changing over to all 7 inch.
6th season solo sugar maker in a young sugar bush of mostly red maples
320 taps
2x6 self built arch, Flat pans w/ dividers
New 12x16 sugar house
CDL hobby 250 RO
NhShaun is on the right track I believe. Just reduce and go higher by one section of pipe.
125-150 taps
Smokey Lakes Full pint Hybrid pan
Modified half pint arch
Air over fire
All 3/16 tubing
Southern Ohio
When I moved inside my sugar shack I had to add 3 feet of 6" to my evaporator and now it pulls much more draft. I think like NhShaun suggests its a balance of flue diameter to length. For piping / fluids (combustion gas is a fluid) a reduction in pipe diameter will cause an increase in the flow speed jay
Zucker Lager
Dr. Tim Perkins
UVM Proctor Maple Research Ctr
http://www.uvm.edu/~pmrc
https://mapleresearch.org
Timothy.Perkins@uvm.edu
I looked up a draft calculation and if I done it right you will need to increase your stack height by 3 feet if you go down to 6" pipe. This will maintain the same approx. draft.
125-150 taps
Smokey Lakes Full pint Hybrid pan
Modified half pint arch
Air over fire
All 3/16 tubing
Southern Ohio