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Posted by HeatPro on September 17, 2008 at 11:04:40:
In Reply to: Decisions on what to do with failed Burnham gas boiler posted by cglex on September 17, 2008 at 10:41:27:
The main reasons for boiler leaks are leaks in the system somewhere that bring in fresh water to corrode the boiler
condensation on the castings as the boiler runs from low temperatures.
The boiler can be prevented from too much fresh oxygen in water by closing off the boiler feed, making it a sealed system that will make bubbling noises and clunks with a low pressure gauge reading long before running out of water.
The condensation on the boiler can happen in a radiant system as water temperatures are usually below 140F, unless the boiler is purposely run over 160F with a mixing arrangement to provide lower water temperatures to the radiant.
In short, no matter which cast iron or steel boiler (no problem with a stainless steel or copper boiler) you get, you can have the same problems unless the system is set up to preserve the boiler.
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