Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Laars Mascot, not proud

hot_rod Member Posts: 22,491
of the fact that I haven't serviced in since 2007! Even though it is next door at my mother in laws :(
Opened it today and I am amazed at how well it has aged. LP from multiple sources over the years, concentric vent kit. Piped to a HydroLink hydraulic separator, onboard 15-62 Grundfos.

It is a combi and it cycles a lot with constant and intermittent DHW draws every day.

Many folks have slammed this Giannoni/ Sermeta heat exchanger design over the years. I predict the boilers that were built properly with good drainage and top brand electronics and inducers will last a long time, 20 years plus.

Wondering if the fire tube design will prove to be this robust?
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream