Is high efficiency gas boiler worth the investment? what’s the maintenance cost? I am thinking to convert oil fired boiler and electric water tank into gas .If you are planning to service your boiler, to ensure that it keeps running, our boiler service cost guide will provide excellent information.Cost to Replace a Boiler. Find out how much it typi.y costs to install a new boiler, we’ll show you labour charges and how much the boiler itself costs..Gas Boiler. Gas boilers are typi.y very large and used to heat large buildings rather than a home. Replacement costs of a gas boiler can range from $, to .
Over time, the mix of water and fuel can have an effect on the boiler s components, possibly inducing corrosion. The cost for replacing a standard gas boiler is about $,. A high efficiency costs about $,..