Ice Furnace

The Ice Furnace is a cooling version of the Scaled Furnace with various practical functions.

Choose one way to obtain it in the mod configuration:

• Staff: cast an Ice Staff on a Scaled Furnace to turn it into an Ice Furnace, or a Fire Staff on an Ice Furnace to turn it back. The staff is consumed.
• Switch: right-click either furnace to switch it to the other.
• Blueprint: learn the blueprint dropped by Dragonfly. The recipe is listed next to the Scaled Furnace in the Light Sources, Cooking, Structures and Summer Items tabs.

Features:

• Same light range as the Scaled Furnace by default, adjustable in the configuration.
• Cools everything nearby. By default it only cools in summer; turn off automatic temperature adjustment to make it cool all year.
• Container of 2x2 (default), 2x3 or 2x4 slots, or none. It accepts the same items as an Ice Box, and its preservation rate is configurable.
• While closed, it makes one piece of ice at a set interval if there is room, with an effect when it does.
• Items inside cool to their lowest temperature, so Thermal Stones reach minus 20 degrees even in summer.
• Opening it puts out the flame: cooling and preservation stop and the light dims until you close it. Closing it also restarts the ice timer.
• When destroyed, it drops one Scale, one Blue Gem and five Nitre, however it was obtained.

Four skins: Default, plus ice versions of the Scaled Furnace's Clawfoot, Crystalline and Foreboding skins. Skins carry over when switching furnaces (switching back restores a Scaled Furnace skin only if you own it). You can pick any of the four when building, or change it with the Clean Sweeper, which cycles them in the same order as the Scaled Furnace.

Feedback is welcome in the comments.