Laars Mascot, not proud

hot_rod

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?

GroundUp

Wow! That's impressive. I just ordered my first Mascot FT yesterday, hoping to get it installed next week sometime if I can get time.

Solid_Fuel_Man

Is Larrs using the same fire tube HX as everyone else? @hot rod like the one you gave me?

Solid_Fuel_Man

This is the bottom looking up.

Ironman

@hot rod
How about a pic after cleaning the HX?

hot_rod

Seems a lot of the fire tube designs are Kiturami, a large Korean HVAC manufacturer.

Thy have had condensing oil fired boilers out for awhile now also.

https://www.youtube.com/watch?v=eiKpS-IYWOg

Zman

When properly piped and set up with analyzer the Giannoni setup works great.
The early munchies had some controller issues. They seem very sensitive to poor combustion.