spoonpluggergino Posted May 6, 2015 Report Share Posted May 6, 2015 For a long time I have struggled to get my E-Tex and paint just the right temperature ,due to my basement is to cold around 68 degrees I had an electrical control metal cabinet in my shop that was just right for my project, box dim.3feet x 2 feet x 6 inches deep. You can make this box out of just about any material including some kind of fiber board. I insulated the entire box with one inch insulation from Home Depot. The box can be any size. Make sure that you put a divider in the box so you can install a very small 110 volt fan to circulate the air when the stat calls for heat by using a light bulb any were from 40 watts to 100 watts. Note the fan only comes on when the bulb comes on, no need to run constant. I set the temperature control to come on at 74 degrees and off at 75, works great, no more warming up anything I have made a simple wiring diagram, make sure is fused 5 amps plenty sufficient to run the fan and light bulb The A419 Johnson control you can purchase at any heating and cooling suppliers, the 4 inch fan 110 volts got it at Scientific Lab supplier the rest at Home Depot Here some pic 2 Quote Link to comment Share on other sites More sharing options...
Vodkaman Posted May 6, 2015 Report Share Posted May 6, 2015 Good solution and lots of good information. I have built similar projects for curing plaster molds, but it is surprising how many other little jobs the box gets used for. Dave Quote Link to comment Share on other sites More sharing options...
dlaery Posted May 8, 2015 Report Share Posted May 8, 2015 This is really cool. Would this run an electrical space heater, like 1000 watt? does it have a max amp load rating? does it have a mechanical relay? If the answer is in the pics I missed it. Quote Link to comment Share on other sites More sharing options...
spoonpluggergino Posted May 9, 2015 Author Report Share Posted May 9, 2015 1000 watts its way to much heater, would burn the cabinet down all you need is a light bulb to heat up the cabinet. 40 watts to 100 watts 110 volts bulbs it's all you need. Do not need a mechanical relay due to the load is very small less than one amp, the bulb load is handled by the A419 stat Gino Quote Link to comment Share on other sites More sharing options...
dlaery Posted May 9, 2015 Report Share Posted May 9, 2015 yeah I don't want to put it in a cabinet, I was curious if this would run a heater. Quote Link to comment Share on other sites More sharing options...
spoonpluggergino Posted May 9, 2015 Author Report Share Posted May 9, 2015 The A419 stat can run a heater, but you do need a relay rated for 1000 watts, or a relay with a magnetic contactor Gino Quote Link to comment Share on other sites More sharing options...
dlaery Posted May 9, 2015 Report Share Posted May 9, 2015 Thanks Quote Link to comment Share on other sites More sharing options...
Eyectcher Posted October 10, 2017 Report Share Posted October 10, 2017 On 2015-05-06 at 1:59 PM, spoonpluggergino said: For a long time I have struggled to get my E-Tex and paint just the right temperature ,due to my basement is to cold around 68 degrees I had an electrical control metal cabinet in my shop that was just right for my project, box dim.3feet x 2 feet x 6 inches deep. You can make this box out of just about any material including some kind of fiber board. I insulated the entire box with one inch insulation from Home Depot. The box can be any size. Make sure that you put a divider in the box so you can install a very small 110 volt fan to circulate the air when the stat calls for heat by using a light bulb any were from 40 watts to 100 watts. Note the fan only comes on when the bulb comes on, no need to run constant. I set the temperature control to come on at 74 degrees and off at 75, works great, no more warming up anything I have made a simple wiring diagram, make sure is fused 5 amps plenty sufficient to run the fan and light bulb The A419 Johnson control you can purchase at any heating and cooling suppliers, the 4 inch fan 110 volts got it at Scientific Lab supplier the rest at Home Depot Here some pic Awsome set up gino very good thinking Quote Link to comment Share on other sites More sharing options...
hazmail Posted October 19, 2017 Report Share Posted October 19, 2017 Nice setup Gino- we have the same problem here 38C in the summer -6C in winter. I have been using a 100 W spot lamp on a timer for a few years now, it raises the temp by about 20C in winter, I put it in my spray booth and everything is nice and warm and great for curing epoxy on a cold night. I like your thermostat/fan idea, saves on power and we get a constant temp. Well done . Pete Quote Link to comment Share on other sites More sharing options...
RebeccaH Posted December 6, 2017 Report Share Posted December 6, 2017 Oh yeah, I also have been using a 100W spot lamp on a timer for a few time know! But now I'm trying to write a manual about it. Read This method for the best papers! They help me a lot! Quote Link to comment Share on other sites More sharing options...