Hi all of you,

 Just sharing some photos of the outdoor boiler,

 for those that want some spec's on it:

 270 Gallons Imp of water (not including lines or remote tanks)

 Recovery from 40c to 70c in 78 min. with a 22 kg wood fire. (104f to 158f with 48 lbs of wood, in 78 min.)

 Uses 3cu ft expansion tank on top of boiler (not shown) with mineral oil air trap (what it's known as is a "air trapped open system" no air, no evaporation).

DC motor air blower (forced draft), with Lambda O2 sensor to control motor speed for XS air ratio (governed air blower), Ideal "stichomythic maximum burn of fuel",  Aquastat controlled high & low limit operation zone, 

Total electrical consumption when in full burn mode, and all outbuildings calling for heat (including blower motors in outbuildings, and circulator pumps (4),  13 Amps @ 220vac, all  are wired to boiler building, for emergency Genset operation if needed. (we might not be able to see, but we will keep warm :)

 Outer 3" foam insulation (r14), (not shown) on-line storage times of 6 to 26 hours of water at greater than 40c.

 Boiler raw cost (Labour, steel, brick, fittings, insulation, mig wire & gas, custom bending of fan fold firebox top (Milco) and grinding disks, etc.)

 $3800.00 taxes in (this does NOT include underground lines or insulation, trenches, or fan coils in furnaces and extra thermostats, etc.)

 on with the photos

ONE)  note fire brick door