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Darkroom Heating

Fan Heater Not Suitable for Darkroom Heating

In times gone by I used a fan heater which was fine for drying the finished prints hanging on the “clothes line” but created a dust problem with negatives needing to be repeatedly dusted off. Sometimes I’d get hairy strands of dust sticking to the emulsion of negatives while hanging in the darkroom to dry. Eventually I abandoned this method of darkroom heating, the hassle to keep warm being just too much.

Warming the Developer with Hot Water

To warm the developer to a quick acting temperature, I have for some time used a second, larger tray of hot water with the developer tray sitting in it. Whenever the water feels cool to my fingers it’s time to add another jug of hot water, until after a few top-ups, the developer tray starts to float, at which time I tip out the water and start again with more hot water. This method has served me well for 15 years or so and is a good way to go in a low budget darkroom.

Electric Bar Heater for Darkroom Heating

Over recent times I’ve used a bar heater on the darkroom wall. With some care, given the colour and low level of light, the paper has been unaffected by this darkroom heating.

But today I just couldn’t stand the fiddling with jugs of hot water any longer. I unscrewed the bar heater from the wall and placed it on the darkroom floor, facing upwards, under the wet bench, to heat not only the darkroom space but also the chemicals.