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[Homerglide]

Is there a definitive answer to what steel to use on firebox and water jacket?

My thoughts are that boiler or floor plate is not necessary. Hot or cold rolled A36 should be acceptable. Firebox should be 1/4" to still allow heat transfer while holding up to rough service. Water jacket at 10 gauge.

Will there be corrosion issues later with hot roll steel if it has not been acid cleaned (pickling)?
Are stays required in an unpressurized heater?

[willieG]

Is there a definitive answer to what steel to use on firebox and water jacket?

My thoughts are that boiler or floor plate is not necessary. Hot or cold rolled A36 should be acceptable. Firebox should be 1/4" to still allow heat transfer while holding up to rough service. Water jacket at 10 gauge.

Will there be corrosion issues later with hot roll steel if it has not been acid cleaned (pickling)?
Are stays required in an unpressurized heater?

i built my stove out of pipe (what ever the metal compositon is) ((i think it may have been ASTM106))

i think 1/4 inch on the water jacket is good idea too (unless you are buying it new ) this will give you some room for corrosion later in the stoves life?

[BoilerHouse]

I used 3/8 steel for the firebox and 1/8 for the water jacket - all mild steel.  After 4 years no problems to report.  Hopefully I will get 10 more years on it but only time will tell.

[Bondo]

Ayuh,....   Mines a propane tank, inside of an industrial water softener tank,...

both are 'bout 1/4" thick...

Don't think it's any sorta "Special" steel at all....