Regular Steam Boiler Maintenance

John Ruhnke

Thanks for the reply.

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John Ruhnke

Regular Steam Boiler Maintenance

What yearly maintenance are you guys doing for a steam boiler?

Are you flushing the return lines? Flushing the boiler? How?

Pulling any probes?

How long does your maintenance take?

How often do you do things? and what? At 1 year, 2 years or 5 years?

John Ruhnke
JR's ComfortableHeat.com



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John Ruhnke

What?

What? No response?

Don't you guys do any regular Steam Maintenance?

I do mostly hot water heat. I have installed a few new steam boilers over the years. I have a few clients that want me to put them on a schedule for steam. I looked at some of the boiler manuals. I just want to get some ideas of what you do in the field.

John Ruhnke

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Jim Pompetti

Steam maintenance

Our yearly steam maintenance . Surge and flush the boiler .
Drain and reflush the boiler , flush safties (LWCO) until water is clear . If you have a electronic lWCO remove and clean .Reverse flush the wet returns and clean pigtails.
Then clean the boiler and tune. Its always a good idea to take a step back and look around for a sign of trouble . You are looking at a good 4 hours .

RonWHC

Here goes.

Open, inspect, clean fire side if necessary. Leave open. Check vent & stack base. Clean as necessary.

Fill boiler into header. Check for boiler leaks.

If OK. Close fire side.

Drain boiler & return(s).

Disassemble water feeder & back up LWCO. Clean them. If probe type. Pull & clean the probe.

Pull plugs, caps, valves, hand holes, man way covers, etc., as necessary. Flush boiler thru accessible plugs, valves, etc. Clean syphon piping.

Find an opening @ end of main(s). Most times remove a vent. Install hose connection & attach hose. Flush return(s).

Reassemble the feeder/LWCO. Replace the strainer assembly.
Put all removed parts back on. New hand hole & man way gaskets.

Fill boiler. Remove gage glass & clean lower cock. Replace glass.

Add chems, if using, & start burner. Check all LWCOs & pop safety(s).

Check for leaks. If none. Wipe everything off.

Service burner. Gas or oil. Includes cleaning blower wheel. Replace all filters. Clean strainers. Replace (clean the big ones) nozzles. Clean gas/oil ignition components. Replace as necessary. If small oil tanks. Add chemical & flush oil line. Put on gages, meters, & other
instrumentation.

Bring boiler up to operating pressure. Test & adjust as necessary. Match CO2, or 02, (as close as practical) to combustion air temperature chart. Print results twice. Leave 1 on job. Test all limit, combustion, hi gas, lo gas, gas valve(s) closure, low oil pressure, air flow, etc, safeties. Test LWCO(s) again. Blow down the boiler to clear dislodged garbage.

This does not include servicing condensate units, boiler feed, vacuum pumps, traps, or checking vents.

Yep. This is for commercial boilers. Time depends on size & job conditions.