Buderus G125BE Update 2 Yrs 1065 Hrs

carl_nh

I wanted to thank you all for your feedback and that we are very pleased with the performance and economy.

Well, thought to give a short update on the Buderus G125BE selection and overall performance.



Installation Feb 2009 G125BE 21 72K BTU  w/LT160 Horz Tank, 3 Grundfos Circ Zones, Taco Zone Control, 1 Grundfos HW loop, Ultra Filter



Feb 2009 to Feb 2010 used 450 Gal Oil - vs 890 and 900 gal two previous seasons. Just installed a new Roth tank with Rollie Heater to replace inside horizontal tank in crawl space.

Tracking usage it is burning .64 GPH @ 280 PSI setting

 

Nov. 2010 Total Hrs 1065 Still Burning Blue Flame Changed Ultra Filter one Time

Vacuum/Cleaned Unit 3-4 times over last 2 yrs - still working fine



Most Recent Readings: C75 Comb Analyzer - Original Nozzle and Settings of Air @ 4.5 and Pump Pressure @ 280PSI



Outside Air Temp 48*

Boiler Temp 140

O2%  3.2

CO2   13.3

CO PPM 37

COaf   43

Flue  temp 265

Efficiency 89.6

Loss 10.4

Excess Air 18.0



The boiler tech and I took readings over 90% Eff @ 125* and lowest was 89.2 Eff at 165*. Also CO2 was in Buderus spec range at 13.3 in all cases.

What was interesting is these # are better than when brand new! We decided not to change anything at this time.



What are you guys seeing with these units as far as perfomance?



Are we in good shape with these specs after over 1000 hrs operation?

Thanks