Safest way on firing up parallel/series system

Safest way on firing up parallel/series system

PostBy: Wiz On: Sat Sep 22, 2012 6:25 pm

During the warmer months you use your oil burner for domestic water, now it's time to fire up the coal boiler. So how do you fire up your coal boiler for the first time for heating season?
Do you introduce the cold water from coal boiler into your hot oil burner and take unnecessary chance. Or let oil burner cool down and let coal boiler heat up complete system?
Wiz
 
Stoker Coal Boiler: Keystoker Ka 6
Coal Size/Type: Casey Junk Coal :(

Re: Safest way on firing up parallel/series system

PostBy: Rob R. On: Sat Sep 22, 2012 6:31 pm

I usually just shut one off and turn the other on...the circulator between them won't run below 150 degrees, so there is no worry about sending cold water into a hot boiler.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy

Re: Safest way on firing up parallel/series system

PostBy: steamup On: Mon Sep 24, 2012 8:30 am

Wiz wrote:During the warmer months you use your oil burner for domestic water, now it's time to fire up the coal boiler. So how do you fire up your coal boiler for the first time for heating season?
Do you introduce the cold water from coal boiler into your hot oil burner and take unnecessary chance. Or let oil burner cool down and let coal boiler heat up complete system?


Let it cool down, or heat up the coal boiler before opening valves. If your boiler is cast iron, cold water into a hot boiler could break the boiler from thermal stress.
steamup
 
Stoker Coal Boiler: Axeman-Anderson AA-130, Keystoker K-6
Hand Fed Coal Boiler: HS Tarm 502 Wood/Coal/Oil
Coal Size/Type: pea, buck, rice

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