Cast iron boiler vs. Copper tube

ChrisL

I have a boiler replacement coming up, and have 2 estimates so far. One spec'd a weil mclain cast iron, the other a lochinvar copper tube. The job calls for about a 130k btu boiler, and the building has cast iron radiators. I don't need high efficiency as its an apartment and I want to keep it simple. So, is there any advantage on going with a lochinvar over the weil.

Thanks,

Chris

hr

They are both fine

boilers and either will do the job.

Personally I feel the cast has a longer life cycle. Copper tube are a bit more flow sensitive and the fluid quality is very important. A small build up inside the tubes will impact the heat transfer on the smaller heat transfer surface.

Make sure the installer flushes the old piping, a good hydronic cleaner would be my advise, then a conditioner fluid to scavange remaining O2 and buffer the ph.

Make sure the water you fill the system is not real hard, as it will coat the hx from day one, lowering the heat transfer efficiencies. Most installation manuals have guidelines for acceptable water quality.

Go with a contractor you feel knows his stuff, and will e there when future service is needed. Ask around

hot rod

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hr

They are both fine

boilers and either will do the job.

Personally I feel the cast has a longer life cycle. Copper tube are a bit more flow sensitive and the fluid quality is very important. A small build up inside the tubes will impact the heat transfer on the smaller heat transfer surface.

Make sure the installer flushes the old piping, a good hydronic cleaner would be my advise, then a conditioner fluid to scavange remaining O2 and buffer the ph.

Make sure the water you fill the system is not real hard, as it will coat the hx from day one, lowering the heat transfer efficiencies. Most installation manuals have guidelines for acceptable water quality.

Go with a contractor you feel knows his stuff, and will e there when future service is needed. Ask around

hot rod

To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Contractor"