After too over fills in the constant level tank I've made my own float switch with micro switch(not so micro) and cork floats seems to work ok fingers crossed
Due to the high viscosity of some gear oil .A water pre-heater was made so oil will flow to constant level tank
Standard central heating pump circulates water round pre-heater
Bottom of pre heater with new filter arrangement ,also water trap before and after filter
The constant level tank was moved to other side of fire as the heat from it was melting the motor and control box.Still bolted to the door which pre-heats the oil with no electric(after initial start).Tank is aluminium.
Regulator was pants on the little compressor ,so here we have a modified acetylene gauge which gives very accurate pressure through all temperatures .
Bottom of pre-heater showing tap for water drain
Flame in fire box with an angle target plate ,this stops flame touching the boiler plate and spreads heat a little more even
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