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Messages - WoodMOJoe

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General Outdoor Furnace Discussion / Re: Water filter
« on: January 29, 2020, 07:00:56 AM »
Wye strainer for me too.  Found a few little tiny pieces of stuff after the first year but nothing since.

Home Made / Re: Homemade "Tank-in-Tank" OWB-Ozarks Hillbilly Edition
« on: January 03, 2020, 11:12:33 AM »
Just to update this thread I fired up this year on December 14, 2019.

This is year 6 for the homebuilt so I think my yearly cost for the whole system (furnace/enclosure/lineset/heat exchangers/fittings and misc.) is well below $300/year now.

Great investment and thanks again to all that helped me with my build!  :thumbup:

General Outdoor Furnace Discussion / Re: Incomplete burn
« on: January 03, 2020, 10:11:55 AM »
Hi Mark,

I also had an issue with creosote sticking my blower flapper shut and I cured it by putting a paper clip on the flapper door, pretty sure someone here on this forum told me about that trick. 

It does leave a very small air gap through the flapper when not blowing but that has never been an issue for my homebuilt.

And yes, you definitely need to raise your set points.  Mine is set at 183 to start the blower and 180 to shut it off.  It overruns to about 185 after the blower shuts off when it's relatively warm out (50 degrees or so).  I know that's a pretty tight temperature differential but I had issues with the fire going out on warmer days, no problems since I tightened the differential.

Here is a link to my build, nothing fancy but going on year 6 now, very happy I built it:


General Outdoor Furnace Discussion / Re: 19 years never drained
« on: April 11, 2019, 12:03:34 PM »
I just completed my 5th heating season with the same water.  I have added a couple gallons of water every year and this year I added a fresh quart of boiler treatment.

Got a strainer filter right where my lineset enters the basement that I check every year and it has had minimal crap in it.  I look at the water when I clean that filter and it still looks the same as year 1 as far as I can tell.

May change it out this summer, I ran our (extremely hard) well water through a multistage reverse osmosis filter when I filled the boiler the first time, took several days to fill it up using that method.

Planning on doing the same when I change it out next time.

Home Made / Re: Homemade "Tank-in-Tank" OWB-Ozarks Hillbilly Edition
« on: April 08, 2019, 10:51:52 AM »
Shut down for the season this morning, 4 1/2 months after we fired it in November.

Here's a pic of the beast, cooling down till next winter:

Shut ours down this morning, ran 4 1/2 months this year, new record for us.  Typically it's about 3 1/2 months.

The wax ring will take up a little slack but I would try to leave the closet flange close to flush (or just slightly under) the elevation of your finish flooring.

General Outdoor Furnace Discussion / Re: Softened water in the boiler
« on: January 30, 2019, 04:57:46 AM »
We don't have an issue with iron around here but our water is extremely hard, lime scale will totally plug a water-to-water hx in 2 heating seasons if you don't clean it.

When I filled my boiler I bought a 5-stage reverse osmosis filter and filled it from there, took about 7 days to fill.  Added boiler treatment also, of course.

This is our 5th heating season and the water-to-air hx in the furnace plenum is still going strong, doesn't seem to have any flow restriction as far as I can tell.

There is some conversation about different methods of treating water in my build thread here:  https://outdoorwoodfurnaceinfo.com/forum/index.php?topic=3693.0

Home Made / Re: OWB #3
« on: January 08, 2019, 04:55:13 AM »

HeatMaster / Re: 2018 HeatMaster install pics
« on: December 27, 2018, 05:56:45 AM »
I would like to know where to find the silver foam wrap, just the insulation only, if I wanted to make my own.

I'm not sure what product Badger uses but you see a similar type of insulation used in a lot of barns and metal buildings, google double bubble insulation.

Probably not exactly the same stuff but that search should turn up what you are looking for.

I've used a couple million square feet of another type (Solarguard) but it has 1/4" of fiberglass between the outer facings, instead of plastic bubbles or some kind of foam.

Got my 5-wrap from Badger and ran it inside of some 6" SDR35 bell-end pipe, buried over and under with 1" clean crushed limestone, it's been working well for 5 years now.

Home Made / Re: Homemade "Tank-in-Tank" OWB-Ozarks Hillbilly Edition
« on: December 02, 2018, 07:12:11 AM »
Wow, congrats on the 10 years...and holy woodburner, I just searched and found some pics of what you built.

My boiler is a very simple and crude toy compared to that...nicely done sir.

We don't have the cold weather as you in Ont. so it's not a huge money savings for us but I just like waving at the propane truck when they pass us by and not depending on someone else to heat our place.

You are making some pretty good money with your setup.   :thumbup:

We have 100 acres of hardwood forest (oak, hickory, locust, hedge, ash, black walnut) here in the Ozarks, I can't even cut a good percentage of the dead trees.

And my neighbors just selectively logged (several varieties of oak, black walnut) 40 acres right next to me and told me to cut the tree tops if I wanted...an embarrassment of firewood wealth.

Electronics / Re: Using 2nd thermostat to control blower only?
« on: December 02, 2018, 06:54:49 AM »
Seems weird that 2 thermostats would be bad. Try using the G connection and setting it to heatpump.

Weird for sure but that must have been it, I installed another stat and I am back in business, working great.

I even stuck the first 2 "2nd" stats back on to see if they would work after I got it going with the 3rd one, no dice.

Thanks again for your help, you are one of the guys that helped me get my system going when I built this beast.

 :thumbup: :thumbup:

Electronics / Re: Using 2nd thermostat to control blower only?
« on: December 01, 2018, 07:28:35 AM »
It sounds like there is something wrong with the thermostats,
Try putting the wire in the Y instead of the W on the 2nd thermostat and flip the switch to heatpump.

That didn't do it either. I tried it with my new and old 2nd stat.

I think I may have another stat I can try if I can find it, will see how that works out.

Thanks for your help  :thumbup:

Electronics / Re: Using 2nd thermostat to control blower only?
« on: December 01, 2018, 06:57:58 AM »
Are you using the same backing plate for both thermostats you tried? If so, that may be the problem. If not, I would check the thermostats to see if there are settings for the type of system it is set for. You will want it setup for gas furnace.

Also, make sure the thermostat is set to heat mode.

I did try using the old backing plate at first but changed it out to the new one immediately when it wouldn't work.

There is a slide switch on the back of the thermostat for "Gas or Oil" and "Electric or Heat Pump"...and it has been set to Gas.

I have the 1st stat set to Heat/Auto (fan) and the setpoints are lowered so the propane unit will kick in only if the temp in the house drops to 64.
The 2nd stat is set to Heat/Auto also but won't operate the blower even when I switch it to Fan.

And to clarify...the only way we can get the blower to work is to run the green wire to the G terminal on the 1st stat, taking the 2nd stat out of the system entirely, and turn it to Fan.

I think you asked that earlier and I didn't really answer it.

Electronics / Re: Using 2nd thermostat to control blower only?
« on: November 30, 2018, 03:04:32 PM »
Since the fan runs when I jumper the W to RH terminal on the 2nd stat does that indicate a bad 2nd stat?

I tried 2 identical stats (one of them brand new) and still can't get the 2nd stat to run the fan, even when I turn the fan to On and I think all me connections are good.

Is there a way to test the pins on the back of the stat to see if it is working correctly?

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