Best Of
Re: Johnson control training
That one is high mileage but it still works the basics do not change!
Re: Urgent Help: Flame Detector Troubleshooting on MMO872 Controller
I suspect that this boiler is not installed in the USA so we have no way to tell the size of this boiler. I have no idea the size of a boiler that is rated in tons. A firing rate in BTU's, GPH, fuel type etc would be helpful. Now, my one recommendation is to never repair a flame safeguard controller regardless of your knowledge of that control. I have seen too many accidents being caused by a "self repaired" control. It was always a much safer option to replace the controller with a factory rebuilt or brand new device. I say this from past experience. You may be the best at repairing this control but the price may be much too high.
Now, as to what the problem is with the controls of your boiler and it's firing, a good service company is well worth the price. When I was still working, I had the replacement controls and the expertise to trouble shoot almost any firing system here in the states. So, before you make a wrong choice, call someone that has the expertise, PLEASE. Once it goes "BOOM" it is then too late too call someone. MY 2 cents.
Re: pipe coils not radiators, checking edr.
For 1 1/4" pipe (OD 1.66") wouldn't the edr be .434sqft/linear ft?
Re: Maid-O-Mist Failure Rate ?
I'll add one more comment. The MoM vents that I recently tried to clean out, even after soaking and boiling in vinegar then water…twice had tons of rusty chunks come out after they fully dried.
I'm thinking whatever the internals are made of are not corrosion resistant at all. The steam/moisture creates a ton of corrosion and rust on these newer MoM's. That is what is making them fail.
Re: Real efficiency gain potential vs sales fantasy vs as installed efficiency.
The true gains come from switching to heat pumps. If natural gas’s best CO2 Lbs/ MMBtu output is about 120 lbs CO2, a COP 3 heat pump using the grid average is already at 78 CO2 Lbs/ MMBtu output (obviously this number is constantly changing).
Re: Trying to understand the observed rates of condensate flow.
That's an insightful question, actually. Since the sun hits on opposite sides of our house in the morning vs. afternoon, it might be worth taking a look at this at different times of the day to see if it changes. Thanks for the suggestion.
Re: Smoke smell in house with oil boiler
Well, they're not good now. The boiler and burner were just serviced, correct? Where's the combustion report? Smoke test results? Draft? Without it, we're doing something into the wind that I'm not allowed to write what we're doing. But we're doing it.
HVACNUT
Re: Smoke smell in house with oil boiler
Have a chimney sweep inspect your chimney. It may be partially obstructed with dead birds or critters. If you don't have a chimney cap to keep the birds out, you might want to have one installed.
jesmed1
Re: New Return Pipe Noise During Renovation
Here is an example of an older boiler where the water line (Red arrow) is much higher than your present boiler. I suspect the boiler that was originally in your house when the wet returns were installed had a higher water line. The excessive pressure was not helping any with the annoying noises.
109A_5
Re: Hi could somebody tell me what the difference is in these hago nozzles
Age.
The red top nozzle vial has a nozzle that was made within the last 10 years. the clear top vial was from an older batch of nozzles. There is no actual functional difference. They are the same.
I can tell you this about those two nozzles, now that they are out of the factory container, if you have touched the cindered filter with your fingers, no matter how clean your hands are, you can throw both those nozzles away. Proper nozzle handling recommends that nothing touches the cindered filter except the oil that it is to filter once it is installed in the oil burner's nozzle assembly. Especially the nozzles below 1.00 GPH, the orifice for that nozzle spray along with the tangental slots inside the nozzle are very small and can get clogged easily
