Basics

A Hot Water Pressure Washer that runs off a Gasoline Engine (A Honda GX390 to be specific) and a Diesel Burner (A Wayne MSR DC-12V Burner )
Also has a certain degree of Foolproofing features, although once “on the fritz” they can become a bit of a hindrance
It HAS wheels, but short of going in straight lines/lifting the front wheels to turn it, it isn’t VERY mobile
- Also the brake stabs INTO THE WHEELS, so not a great design there. Something akin to a ratchet mechanism, but a shape welded onto the axle would be nicer
Quite loud too, but especially for Mobile Unit, better mufflers/a hush box (re Generator Shed etc) are hard to do
- A Motorcycle Muffler / Small Engine Muffler (assuming it doesn’t impact engine performance etc) would be nicer however

Quick Reference

Gasoline (Preferably Ethanol Free Gasoline , although E-10 / E-15 MAY RUN short term, just don’t store it like that)
Diesel / Off Road Diesel
- Uncertain on if Home Heating Oil / Kerosene / Marine Diesel Oil etc will run in it

Engine Oil: 10W-30
- As per This Manual 10W-30 is recommended, although in some temperature regimes, 20W-50 , 20W-50 , and 10W-40 are permissible/recommended
Pump Oil: “ SAE 10W-40 Non-Foaming “

Hot Water Pressure Washer
- Propane Hot Water Pressure Washer
  - Short of SLIGHTLY more difficult fuel sourcing, this would eliminate much of the issues with the Gas/Diesel system

The Official Landa Page on the MHC Line
The Operator’s Manual for the Landa MHC
- ”Use heating oil or diesel. If diesel is used, it is recommended to add a soot remover to every tankful to reduce soot build up on the heating coil. 10. Use No. 1 or No. 2 heating oil ( ASTM D306 ) only. NEVER use gasoline in your fuel oil tank. Gasoline is more combustible than fuel oil and could result in a serious explosion. NEVER use crankcase or waste oil in your burner. Fuel unit malfunction could result from contamination”
ASTM Standard is Wrong, D306 is for Aluminum Powder Specs, D396 is the correct standard, re ASTM D396
The Official Data Sheet on the Landa MHC