Multi-Fuel with Burner Separated Fuel Tank System Stoves

Basics

• This is a category of Multi-Fuel Liquid Fuel Pressure Stoves that utilize a Liquid Fuel Bottle and Pump / Regulator Assembly SEPARATE from the Burner assembly itself
  • This has some advantages in terms of safety, compactness, and modularity
  • Outside of the Chinese White Label Multi-Fuel Stoves and Wick based designs, it is the main “state of the art” for these stoves
• Some of these can also be run off of Gas Canister Fuel ( Butane , Iso-Butane , Propane or blends of these)
• While some do not take this approach, ideally you want different nozzles for the different fuels (to change Air-Fuel Ratio and to a lesser extent Fuel Atomization
  • Although the “Vapor Generator” and Flame Spreader / Burner Silencer largely negate the need for this
• A “Shaker Needle” for cleaning Coke Formation in the vapor generator / nozzle is also a preferred feature over solely manual needle poking / mesh removal + blowtorching etc
• While somewhat becoming a thing of the past due to mass adoption of Canister Stoves (short of (Ultra-) Cold Weather and/or High Altitude use / Single Fuel Standard compliance etc, due to their potential to run on Fuel Alcohols or Bio-Diesel / Renewable Diesel etc, for some applications they may be a neat application of Appropriate Materials/Fuels
  • In applications where a simple Rocket Mass Heater / Rocket Stove , or Biogas Stove would not be a better option
    • An obviously not in fixed Electrified locations, where Glass Top Electric Stoves or Induction Stoves would be the choice
  • ALSO to an extent, since companies are largely exiting this nice, an OSHW project could fill it!

History

• MSR Pioneered the Concept
  • https://cascadedesigns.com/blogs/msr-gear-guides/liquid-fuel-stoves-history
  • Granted Biased Page
• Seems like most of the other versions were 70’s-2000’s iterations on the concept
  • Not MUCH development since, although POTENTIALLY in the “cloners, turned modern proper companies” such as “Campingmoon” etc

Brands

MSR

• ”Whisperlight Universal” is their only real remaining model
  • This is basically the “Whisperlight International” but with an adapter for use as an Inverted Canister Stove (aka Liquid Feed Canister Stove )
• The “Dragonfly” and “XGK” are their older models
  • The XGK in particular had some use with Diesel/Kerosene/JP-5 etc with military customers and thus had dedicated nozzles for that (although coke formation is increased with heavier/“dirtier” fuels

Primus

• Primus Multifuel
• Primus Omnifuel / Omnifuel II
• Primus OmniLight TI
  • A Titanium based “ Ultralight “ version of the Omnifuel (which may be the dame as the Omnifuel II, bit uncertain)

Optimus

• Now bought up by some larger group
• Sold the “Optimus Polaris” stove