Passive cooler

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Passive cooler

Passive cooler

A traditional unpowered cooler that works by water evaporation. Must be regularly replenished with wood. Not efficient enough to refrigerate food.

Base Stats

Type
BuildingTemperature
Market Value
61 Silver [Note]
HP
80
Flammability
100%
Path Cost
30

Building

Size
1 ˣ 1
Placeable
True
Cover Effectiveness
40%

Creation

Required Research
Passive cooler
Work To Make
200 ticks (3.33 secs)
Resources to make
Wood 50
Deconstruct yield
Nothing
Destroy yield
Wood 12 - 13

The passive cooler is a low-tech alternative to the cooler. It does not require power or any advanced materials, but requires wood to refuel.

Acquisition

Constructing a passive cooler requires Passive Cooler to be researched, which both New Tribe and New Arrivals start with. It requires Wood 50 Wood and is constructed in 200 ticks (3.33 secs).

Summary

Passive coolers absorb heat from interior spaces at a rate of 19.8°F (11°C) per second, spread among each tile. They cannot lower the temperature below 17°C (63°F). In order to do so, passive coolers consume Wood 10 wood per day; they must be restocked at a cooler's full cost every 5 days.

Analysis

Passive coolers are unable to preserve food, but they can protect your colonists from heatstroke and prevent debuffs such as "Slept in the heat". Unlike campfires, passive coolers can't be "too efficient" and make your pawns uncomfortably cold.

They are very fuel inefficient, even compared to running coolers on wood-fired generators. However, they have the great advantage of not needing electrical power to function. As such, they will save your beer in a solar flare.

Version history

  • 0.15.1279 - Added.
  • 0.19.2009 - no longer self-destructs when it runs out of fuel but instead waits to be restocked.
  • 1.0.0 - No longer requires Construction skill to craft.
  • 1.1.0 - Refueling is now toggleable.
  • ? New Arrivals start with Passive Cooler researched.