Q: What does it do with the humidity it takes out of the air?

The Heat keeps humidity from building up by stabilizing the temp inside the safe. So there is no humidity taken out of the air, it just prevents it. Works well.

Q: Does anyone know the surface temperature

I used a temperature “gun” with a red laser dot: 116 degrees Fahrenheit pointed directly on the gold tube. Internal safe temperature is 75. Just installed the 18” model yesterday, September 26, 2020.

Q: What size for 24cu feet safe?

I have the 18" model in a nearly 12 cubic feet gun safe (24 long gun capacity) and it has done fine thus.

Question 1

What's the functional difference between this and the cheaper black version?

Accepted Answer

The main characteristic difference that I've been able to figure out (besides the color***) is that the GoldenRod units are higher wattage heaters.

Take a look at the chart I made below, where I've compiled heating wattage information for different length rods from Lockdown, and also another manufacturer, SnapSafe, all available on Amazon.  Hope this helps!  :^)

Wattage and Price Charting for Different Size Rods							
							
Description of Rod				       Power	Cost (Amzn)		
Lockdown "Dehumidifier Rod," 12"		8 W	        $17 		  <-- Black Rod
Lockdown "Dehumidifier Rod," 18"		12 W	$26.22 		  <-- Black Rod
							
Lockdown GoldenRod, 12"				 8 W 	$33 		
Lockdown GoldenRod, 18"				18 W	$38 		
Lockdown GoldenRod, 24"				25 W	$39 		
Lockdown GoldenRod, 36"				38 W	$44 		
							
SnapSafe Dehumidifier Rod, 12"			7 W	        $15.29 		
SnapSafe Dehumidifier Rod, 18"			10 W	$17.50 		
SnapSafe Dehumidifier Rod, 24"			12 W	$16.54

*** The color and reflectivity of the surface makes a small amount of difference for emittance (i.e. - heat radiating efficiency) - matte, less reflective black objects radiate somewhat better than more reflective gold).

Question 2

What does it do with the humidity it takes out of the air?

Accepted Answer

The Heat keeps humidity from building up by stabilizing the temp inside the safe. So there is no humidity taken out of the air, it just prevents it. Works well.

Question 3

Does anyone know the surface temperature

Accepted Answer

I used a temperature “gun” with a red laser dot:  116 degrees Fahrenheit pointed directly on the gold tube.  Internal safe temperature is 75.  Just installed the 18” model yesterday, September 26, 2020.

Question 4

What size for 24cu feet safe?

Accepted Answer

I have the 18" model in a nearly 12 cubic feet gun safe (24 long gun capacity) and it has done fine thus.

ASIN	B00D1WYXR0
Best Sellers Rank	#32,869 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #95 in Dehumidifiers
Brand Name	Lockdown
Color	Gold
Customer Reviews	4.7 4.7 out of 5 stars (7,067)
Global Trade Identification Number	00661120257219
Included Components	Dehumidifier rod
Item Dimensions D x W x H	1.1"D x 17.4"W x 1.1"H
Item Type Name	Dehumidifier rod
Item Weight	7.04 ounces
Manufacturer	Battenfeld Technologies
Material	Metal
Model Name	Golden Rod Dehumidifier 12" Rod
Model Number	725721
Number of Items	1
Operation Mode	Continuous
Other Special Features of the Product	Automatic Moisture Removal
Part Number	725721
Recommended Uses For Product	Residential
UPC	661120257219
Unit Count	1 Count
Voltage	120 volts
Warranty Description	Limited Lifetime, https://www.btibrands.com/limited-lifetime-warranty/
Wattage	8 watts

Lockdown Golden Rod 12" Dehumidifier Rod with Low Profile Design and Easy Installation for Gun Vault Humidity Control and Rust Prevention, Made in USA

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