I have a modine hot dawg 100k heater. My shop is 40x40 with 14 foot ceilings. I plan on hanging the modine down from the ceiling about 5-6 ft on allthread 3/8". This way it is closer to the floor for drying stuff and warming when it -40 outside in the winter. I have never used the superstrut or unistrut with the spring nuts to hold the allthread in place. The channel is bolted to the ceiling through the bottom chord of the trusses and is secure, the spring nuts slide into the channel and the allthread screws into it and tightens. Then the other end of the allthread will screw into the top of my modine. Anyone have any suggestions or done this before? Used the spring nuts, etc.
Modine Hot Dawg 100K
- Thread starter akkahuna
- Start date
dave67fd
Well-known member
I didn't use it to mount my heater but have used it in my business. What is your concern?
mrobins297aaa
Well-known member
there more than adequate to hold the weight of that heater, if your worried about them coming lose you can put a jam nut and fender washer on the rod against the bottom of the unistrut
Steevo
Well-known member
I mounted my 75k Mr Heater the way you are doing it, except that I put unistrut above and below the lower chord and secured it that way, instead of lagging into the chord. In other words, there is also four pieces of allthread above the unistrut, through the sheet rock, up above the truss chord, with unistrut spanning two trusses above the chords, too.
The allthread screws into the spring nuts, and below the unistrut I used square plates with nuts and lock washers to secure the hanging allthread supports in place.
Then I sandwiched the heater mounting flange between two flat washers, two lockwashers and two nuts at each mounting point.
The allthread screws into the spring nuts, and below the unistrut I used square plates with nuts and lock washers to secure the hanging allthread supports in place.
Then I sandwiched the heater mounting flange between two flat washers, two lockwashers and two nuts at each mounting point.
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I have just never used before but this is what was recommended. I have installed the "Superstrut" channel with allthread through the trusses, it is going nowhere. I have the allthread attached to the heater and when I get some help I will mount it with the spring nuts to the ceiling. ??? The spring nuts just slide inside the channel, with spring towards the ceiling, allthread threads into and is run up until it jams against the channel???, my only concern was with the heater hanging if these spring nuts could loosen. I was messing with them and when the piece off allthread I had was loosed a bit the spring nut fell out, but then again I didn't have the weight of the heater pulling on it either.
Do you know if there are any problems mounting it down around 5 feet from the ceiling on allthread? I have 14 ft celings and want the heater down around 8 feet.
I mounted my 75k Mr Heater the way you are doing it, except that I put unistrut above and below the lower chord and secured it that way, instead of lagging into the chord. In other words, there is also four pieces of allthread above the unistrut, through the sheet rock, up above the truss chord, with unistrut spanning two trusses above the chords, too.
The allthread screws into the spring nuts, and below the unistrut I used square plates with nuts and lock washers to secure the hanging allthread supports in place.
Then I sandwiched the heater mounting flange between two flat washers, two lockwashers and two nuts at each mounting point.
I can't see close enough but you have spring nuts threaded to the allthread inside the channel and square plates and nuts and lock washers outside the channel? So you have a redundant lock on it? Looks good to me, my 100K heater comes with 3/8 threaded mounts installed on the heater so I do Not have to use the angles on the heater, the 3/8 allthread just screws into the top of the heater.