Painting in cold

K

Kuherrm

How does everyone heat their space they're spraying in? Oil heaters seem pretty ineffective for heating a space
 
I heat my garage with wood in a Iron stove, I'm not a auto painter. But have a project I'm gonna do myself even if I have major problems, so be it.

I recently asked about temp for painting and see over and over you need a metal service temp of at least 65. I also read this temp needs to be held for the next 24hrs on the epoxy.

Even tho I can reach a metal temp of 65, I'm not going to be able to hold a over night temp at 65 with wood, maybe a extra kerosene torpedo heater(maybe) but it looks like I have missed my painting opportunity until spring.
 
I heat mine with a kerosene torpedo heater...shut it off when I get ready to spray, then I fire it up when the overspray clears
 
There's a reason why professionals need to charge what they do to get work done properly, and proper heat is just one of them. If you don't invest in gas and/or electricity to keep surface temps in range, you are risking ruining all your hard work.

I know at least one hobbyist who has used something like one of these to supplement other forms of heat:

https://www.ebay.com/itm/DAYTON-HEA...h=item41f2d029cd:g:t6kAAOSwhspb4Pff:rk:1:pf:0

https://www.ebay.com/itm/Dimplex-DC...h=item4b55015f3e:g:FGYAAOSwzvZbnFn7:rk:1:pf:0

I have a couple of them and they work good, but they don't stand up to hard use without modification. Most hobbyists won't have this problem though.
 
crashtech, I have the red one. Purchased it last year and I ran it last year for the first time, got my electric bill and shut it off, $700 bucks. Wife wasn't happy lol.
 
Actually crash , I do have one of those hanging from my ceiling to help keep the temperature up once I pre-heat it with the torpedo - my wife doesn’t much care for the power bill when I use it though - of course I’m just a hobbyist
 
The first attachment is of the type of electric heater crashtech notes. Thermostatically controlled, powerful fan. Works well, high electrical cost if run often.

Second is of a propane heater we have two of. Also works well, three heat settings. No thermostat. Constant run on medium heat goes through a 20lb (4.5 gallon) tank in 2-1/2 to 3 days when temps at below freezing.
 

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Yea thats why I'm considering a back up propane tank, I screwed up and said kerosene earlier, I meant propane torpedo.

The electric is convenient but that comes with a higher cost.

Of course my garage shop needs to be insulated better than it is.
 
Overnite for the home or small work area if you can setup heavy drop cloths or something to make the area smaller, that'll help some.
my little entry door & trim painting area at work has a hint less than 8' tall ceilings which are hard enough to fit lighting, much less some heating unit. I got a propane torpedo to get it going when needed & a little plug in unit to help out. Just put up a 6 outlet bathroom bar light fixture mounted to 1x6 with extension cord in one spot with 250 w clear bulbs. It's a nice help & gonna build a few more, but may need to add more circuits. I believe 1800 watts is 15 amps. Home depot has the 6 light Hampton bay chrome fixture for $26. May get several & use as needed/able to plug in, maybe just 3 bulbs in some. Don't know of a much cheaper or easier way to get a little extra heat in a space hurting for space.:p May also mount sliding pocket door track on ceiling to move units around. Low ceiling mounted heat bulbs are also great for a little speed drying parts.
 
Would it even be good for the epoxy to get butt a$$ cold after 24 hrs of 65 temps?
 
This is what I used. I feel they were very effective. $57 each on Prime. Two heat settings 750w and 1500w.

To give you a little reference my one car garage is 2x4 wall joists and it is only half insulated and sheet rocked(no time to finish). The roof peak is vented and it is probably about 12 feet high. The temps outside dipped into the low 40s at night and I was still able to maintain an 85+ degree temp on the painted parts. The nights the temps were in the low 50s the temps were close to 100 degrees.

On the colder nights the temp in the garage was still right around 65 and it stayed that way all night. This type of heater heats objects vs air which is why I chose them, but the metal on the car must radiate enough heat to keep the air in the garage at 65.

I was nervous about leaving them on all night, but as you can see I kept them in the open with nothing flammable nearby. The sides and back of the heaters do not get hot. Just the front. The cords and the outlets don't even get warm. If I ran one unit on the 15 amp circuit the Romax did get a tad warm, but that's to be expected. Regardless I kept it at 750 watts to be safe.

Next year I'm getting a 50,000 btu natural gas heater to suspend from the ceiling. This stuff is addicting and I want to be able to do it year round.

I can't answer that last question, but I hope someone will. I did this in 3 different sessions and on my last one I maintained the temps at about 85 for about 26 hours and then killed the heaters. after that the temps went into the 50s and then days later into the low 40s and high 30s. I hope I'm ok......

Hope this helps....
IMG_4194.JPG
 
This is what I used. I feel they were very effective. $57 each on Prime. Two heat settings 750w and 1500w.

To give you a little reference my one car garage is 2x4 wall joists and it is only half insulated and sheet rocked(no time to finish). The roof peak is vented and it is probably about 12 feet high. The temps outside dipped into the low 40s at night and I was still able to maintain an 85+ degree temp on the painted parts. The nights the temps were in the low 50s the temps were close to 100 degrees.

On the colder nights the temp in the garage was still right around 65 and it stayed that way all night. This type of heater heats objects vs air which is why I chose them, but the metal on the car must radiate enough heat to keep the air in the garage at 65.

I was nervous about leaving them on all night, but as you can see I kept them in the open with nothing flammable nearby. The sides and back of the heaters do not get hot. Just the front. The cords and the outlets don't even get warm. If I ran one unit on the 15 amp circuit the Romax did get a tad warm, but that's to be expected. Regardless I kept it at 750 watts to be safe.

Next year I'm getting a 50,000 btu natural gas heater to suspend from the ceiling. This stuff is addicting and I want to be able to do it year round.

I can't answer that last question, but I hope someone will. I did this in 3 different sessions and on my last one I maintained the temps at about 85 for about 26 hours and then killed the heaters. after that the temps went into the 50s and then days later into the low 40s and high 30s. I hope I'm ok......

Hope this helps....
View attachment 6555
What is the name of those heaters? Thanks
 
I installed a propane furnace in my main garage area. My homemade booth is a positive pressure design so I draw the air through the main garage and force it into the booth. (i.e. no flame in the booth area) Of course I have to open a window or two in order to have enough air supply but it does keep the air much warmer than before.
In the booth I use a 220v version of the red heater Crash mentions to get the metal temperature above 70 degrees. While spraying the ambient temperatures will drop considerably but the metal temperature remains above 60 degrees. Once the cloud clears I close the windows and allow the furnace in the garage to catch up and turn the electric heater on to get metal temp back above 70 degree during flash time. The garage door end of the booth stays slightly open to allow fresh air flow.
 
Made a couple of light strips today with ceramic sockets for my door paint shop, will make at least 1 more. Time for more circuit breakers.:rolleyes: The heat bulbs do seem to leave more heat in room with fan running than torpedo heater.
The old bathroom 6 light fixture I tried for a heat bulb strip sample seems ok for now, but wouldn't trust the new ones.
My dumb self finally remembered to get another needed item ,, wall thermometers. Figured I'd put up 3 in different ends of room. Also finally got me an infared thermometer.Get to try out tomorrow.
 

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