Is it necessary to have an exhaust fan in a heated drying box? I am having a new one made and don't want to do it if it is not necessary.

100% solids epoxies do not exhaust any sort of "fumes." There is nothing being evaporated. So, no, not really.

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Good morning Tom,

Please explain 100% solids epoxy.

All the normal rod building epoxies I use, Rod Bond, Aftco finish and all the others used in the past sure left odors in the house. The reason I have an expensive filter in the shop.

Thank you.

Capt Neil Faulkner

Why build a hot box if you are going to put a fan in it and take all the heat out ??

Bill - willierods.com

An "odor" and an evaporative solvent are not the same thing.

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Check with the person building your box. He may be using the fan to help maintain
an even temp. You don't want to go to high. With his design it may be needed to keep
an even 70 or so.

The builder is a cabinet maker, has never made one, and is going by some designs from the photo posts here and else where on the internet. I need this mainly in the winter time as my shop is outside in a room off of my garage and it gets pretty darn cold.

Hal -
How is he heating the box? IF he is using a couple of incandescent light bulbs then you can control the temp by changing the wattage of the bulbs. You should not have to exhaust the enclosure - nor, I think, would you want to. Added expense, possibility of dragging in dust -exhaust means air has to enter somewhere.

Probably going to use incandescent bulbs. I was thinking the same thing.

Another thing he MIGHT try - that works well is a heating coil or tube from a quartz heater connected to a rheostat (dial) controller. The quartz tubes are efficient & easy to clean, can be connected together and if the box is lined with hard backed polyfoam with an aluminum face (as is sometimes used to insulate block walls) the enclosure will be super efficient saving you some electricity $$.

There is also a ceramic heating coil that screws into a regular bulb socket. Available at most pet stores in the reptile section. Now that I think about it, they also make a thermostat that you plug heat lamps into with a temp sensor you can place in the box to keep the temp consistent.