In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
I am doing an oil to gas replacement of my home steam heating boiler (rated at 210,000 BTUs). I am staying with steam since the cost of moving to a hot water system will be significant. The contractor who I am planning upon using for the work - and whom I find to be reputable - is recommending an option for a surge tank to be installed.
I understand the need for an expansion tank with a hot water system due to water not being a compressible fluid. However, I have never heard of a surge tank as he is referring to it for steam. The exact quote from the pricing proposal option is "Surge tank to prevent pipe noise".
Can someone tell me what this would eliminate pipe noise? I'm not getting a decent explanation from the contractor.