Print

[tinfoilhat2020]

hooking up my 2nd unit heater in the shop hopefully this weekend. got all the parts, started running the unistrut last weekend (yes  Daryn akak wreckit I used a level  ). got to run 80ft of inch copper to the attached shop....should be that back of a job if I can get away from the kiddos for an afternoon. I sure as crap need the heat over there for two reasons: one it would be nice to put more of a load on this boiler and two, it would be nice to take the chill off when im working on something and dry it out on moist rainy days.

[coolidge]

62 at the peak with IR gun

Got two kids home from college, there goes some hotwater.

[wreckit87]

IR gun really doesn't do well with measuring actual air temp, but the surface of the wall or lid you're pointing it at. Thermometer may be considerably higher.

Dylan, THANK YOU for using a level. I've been losing sleep over that for days lol

[coolidge]

I got three more thermometers to distribute around garage, there is one on the back wall 2 degrees different than others and t stat, didn't do anything in peak yet.

Took some thermal imaging of floor , garage door, and walls this morning.

[coolidge]

Blower door testing came in at 512 cfm, garage is tight.

[mlappin]

Blower door testing came in at 512 cfm, garage is tight.

Something still seems weird though, if it was a faulty thermostat causing the excessive wood consumption then you should have noticed it was way too warm in your shop, where’d the extra BTU’s go?

[hondaracer2oo4]

Exactly

[coolidge]

     Wished I knew.   T stat at 68 tonight, thermometers around the garage are 62, 64 degrees.

Who knows!

[hondaracer2oo4]

Well now that you know all the critical info, you can calc your btu needs for the garage with this calculator. https://www.builditsolar.com/References/Calculators/HeatLoss/HeatLoss.htm

What do you come up with for btus per hour?

[coolidge]

15447

[hondaracer2oo4]

At what outside temp was that based on?

I did a calc average of 6500 btus per pound of 20 percent mc wood. Multiply 6500 by .75 for the stove efficiency and you get 4800 btus per pound. Multiply 16,000 btus per hour by 12 hours and you get 192,000 btus per 12 hour burn. Divide 192,000 by 4800 and you get 40 pounds of wood per loading to heat the garage. Obviously these numbers are a little rough but it gives you a starting point of what to expect for wood use.

[coolidge]

20 degree

[hondaracer2oo4]

Well I don't know if your wood supply is at 20 percent mc which is what I based my 4800 btus per pound off of but do you think you were using 40 extra pounds of wood over your house wood load every 12 hours?

[coolidge]

You know I have been meaning for a couple years now to weigh some for a week to check that out.

[hondaracer2oo4]

Can you refresh me on the backstory on this? Was this a sudden jump in wood usage or what was the deal?