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You're all set with a propane stove then! The walls won't be bad finishing the syrup from your 3-4 trees.

Finishing over propane is way easier than electric. Propane is constant heat; electric cycles on and off. It can be done over electric, but don't dare turn your back on it.

Definitely reds, those...

Looks like reds to me. Look around on the ground for old leaves is another clue.

I built a similar preheater for my old D&G Sportsman. You are on the right track.
Make the inlet the lower pipe and the outlet the upper pipe.
For a vent, tee into the highest point (outlet pipe)...

I did that in the early years. 16 x 32 flat pan spanning 2 propane burners. Worked good. Ditched that setup the year the propane bill hit $600 and switched to wood.
Helpful hint: store the butane...

Here's a picture of my preheater. 3/4" manifolds with 1/2" copper soldered into holes drilled in the 3/4. This way saved a lot of tees and made it much more compact. Use 1/2" for your heater pipes....

The hood came out of necessity. The original camp was 12x16 with one 16' side open and facing south. The evaporator wouldn't boil good in the front pan due to cold air coming in the open side, so I...

15771

Here's mine with the pre-heater and steam hood in place.

50-65 litres an hour, depending on how hard you pushed it.

Here in Canada parts are readily available. The float box is the same as the bigger evaporators so it shouldn't be an issue. Mine's a 2008 - that's what I'm going by.
Good luck!

I'm selling my evaporator. Here's the link to the Kijiji ad:

http://www.kijiji.ca/v-home-outdoor-other/bedford/maple-syrup-evaporator/1242196381?enableSearchNavigationFlag=true

Our kids named the trees (we started when they were 3&5) and the names would reflect the location in the woods or some reference point. Single trees had names, 2 trees together were had the suffix...

Also, for my preheater manifold headers, I drilled 5/8" holes (the o/s diameter of 1/2" copper pipe) at 1 or 11/2" spacing and soldered the 1/2" preheater tubes into them. It was a lot more compact,...

Hi Guys,

I'm no stationary engineer, But I don't think you can boil sap in a preheater that is heated with steam. Even if it did, steam would still have the float box to vent or even push back...

That looks good. I used a similar one that I made myself. It would heat the sap to 180.

Comment on the vent: Instead of plumbing a vent pipe higher than the tank, I put a ball valve on the vent...

Highlights of today's meeting:
Kevin MacCormick was inducted into the Nova Scotia Maple Hall of Fame
Presentations by various provincial government departments on crown land maple leases, invasive...

Hello fellow NS producers,

The Maple Producers of Nova Scotia AGM is on January 21st. Below is the agenda.

I joined MPANS a few years ago and have made some great contacts from the group....

Welcome to the maple world! This set-up is very practical.

Use at least a 4' drop line. Set the bucket on the ground with drop line through hole in lid, then find the spot to tap. Allow for snow...

Is your evaporator in a building or exposed?
The first year I boiled on my Sportsman, it was in a 3-sided camp with the fire door to the open side. Wouldn't boil good at all in the front pan. ...

I agree with Johnallin and the bypass. The preheater needs the weight/head of the sap in the tank to push the sap through.

Are you tapping reds or sugars?
I tapped reds for 14 years. Ratio was usually low 70's to 1 for sap to syrup.

Also, don't get too caught up in filtering fresh syrup for home use. Let your...

On tubing size: All my tubing was D&G 5/16", whatever grade my local rep had in stock. Not sure if the 3/16" would act differently with the hot water trick or not.
On dunking a tensioned line: I...

An easier way for a few fittings is carry a thermos of hot water with you. Dunk the tubing in the hot water for a few seconds and it will slip on the fitting. Don't overheat the tubing, and give the...

Reverse your flow through the preheater so the sap travels uphill. With 6' of head this shouldn't be a problem. Weight of the sap in the tank will keep the air out of the system. Have a bypass geared...

In addition to Dr. Tim's words, by letting your finished syrup set a day or two it allows all the sugar sand to settle to the bottom. When it is time to reheat the 5 gallons to bottle, gently pour...