All water ways are manufactured from 16# solid copper tube, bronze welded with tobin bronze rod.

Inner booster tube is of 14# solid drawn copper tube.

Outer booster tube is of 18# copper.

All cast iron sections are of high temperature h.s. meehanite.

Refactory surrounds all water tubes in the firebox.

Outer case is of mild steel.

Water ways - Solid copper water jacket - 18#.

Booster jacket solid copper water jacketed flue secion (14# internal).

Combustion chamber lining - pyrocrete refactory.

All cast iron sections are of high temperature h.s. meehanite.

Central heating

Domestic hot water assistance

Commercial hot water

Swimming pool heating

Horticultural applications

Dairy hot water systems

Conversion from liquid or gaseous fuels to solid fuel

To work in conjunction with other fuels

Complete combustion requires CO2 (one part Carbon, two parts Oxygen). Air is 23% Oxygen.

Allow 8.63 cm of ventilation for each 1000 watts the boiler is capable of generating and this ventilation must be at floor level as close as possible to the automatic air duct on the boiler.

If the automatic air duct is a considerable distance from an external wall then a duct should deliver the air directly over the duct.

An open door or window will not suffice for an air intake point at floor level.

Calculate heating load

Ascertain net calorific value of wood

Decide on preferred stoking intervals - 6 or 8 hours

Example

Heating Load = 18000 watts

Assumed net __________________ = 6kg / hour
calorific value = 2800 watt hours/kg of wood

6 kg/hour x 6 hours (pref. stoking interval) = 36kg/6 hours

Now select a boiler with sufficient fire box capacity to hold 36 kg of fuel

It would be wise to select a boilder with a capacity to hold say 20% more fuel than that required

Correct design will ensure a well balanced easily controlled heating system which minimises excessive fuel consumption.

For pumped systems it is important to adjust all flow rates to the design values.

Red Gum, Grey Box, Iron Bark, Western District Sugar Gum, Bull Oak have 2800 Watt hours / kg (nett).

Stringy Bark, Messmate, Peppermint, Ti-Tree, Ghost Gum, Wattle or most coastal timbers.

Note: Although most wood has a similar calorific value, the density varies therefore we have adjusted the nett calorific value to compensate.

All flue used on Tubulous boilers must be insulated to maintain a stable flue gas temperature.
All flue used on Tubulous boilers must comply with AS-2918-1987.