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%
Rotatable
False
Path Cost
30 (30%)

Fuel

Usable Item(s)
Wood Wood
Capacity
50.0
Consumption Rate
10.0

Building

Size
1 × 1
Minifiable
False
Placeable
True
Cover Effectiveness
40%
Heat Per Second
-11

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[edit]

Passive coolers can be constructed once the passive cooler research project has been completed. Each requires Wood 50 Wood and 200 ticks (3.33 secs) of work modified by the construction speed of the builder.

Once constructed, they cannot be re-installed, they can only be deconstructed.

Summary[edit]

Passive coolers absorb heat from interior spaces at a rate of 11 °C (19.8 °F) per second, spread among each tile. They cannot lower the temperature below 17 °C (62.6 °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[edit]

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 fermenting barrels from going bad during a solar flare.

Version history[edit]

  • 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.