Best Of
Re: How to pipe a Condensing boiler with heat exchanger for non O2 barrier pipe
Mine has been running since 2015 without any heat exchanger and no issues, so dunno.
There's not much regular steel, if any, in a combi boiler.
nate379
Re: Radiant Heat. Should I raise the temp?
If this is your closely spaced tees, it ain't. I think there are hydrolic problems with that set up. It's a bridge. Look at hot_rod's post out of Idronic at the closely spaced tees labeled 'C'.
I have never seen the connection pictured any other way.
Re: Radiant Heat. Should I raise the temp?
That is absolutely NOT primary/secondary piping, that is a bypass and the boiler circ is pumping directly at the mixing valve. Also can you please explain the "safety issue" of 1 quart of 180 degree water hitting the radiant floor?
GroundUp
Re: Radiant Heat. Should I raise the temp?
A thermostatic mixing valve to regulate SWT is not the best choice. It has a high resistance to flow (a low Cv). I would prefer a valve with a higher Cv. A Taco I-series with a sensor mixing valve would have been my choice. A circulator (pump) doesn't suck, it circulates.
Doesn't appear to me to be piped primary/secondary. I assume you have the necessary check valves. (volute?)
Re: Can't stop the cycling!
May I as a silly question? What's turning off the boiler for that 1 minute chut down? That almost sounds like a pretty well sized boiler cycling on pressure, which is just fine. Not a problem at all.
On the possible leak — the quickest and simplest test is does the water level recover when the boiler is off and allowed to cool down some? That is, you set it at some level — note what — and then come back later after it as cooled down again, where is the water? About the same? If it, no leak. Slow returns maybe, and quite possible — they can be flushed if needed — but no leak. You only have a leak if you have to add water to maintain level — more than a gallon or two a week.
Re: Can you please critique this boiler setup that was installed in my house two wks ago
Had a great visit from
GW Gill he gave a diagnosis of the installation gonna send it to the installer
RCooper
Re: O.E. Vapor System
Thanks I actually found a hard copy of the book at a online thrift bookstore and it should be arriving the next few days.
Re: Williamson 125k btu boiler has wires under it
check the manual for
your specific boiler
hot_rod
Re: Williamson 125k btu boiler has wires under it
@mattmia2 said: "some boilers can be open like that, others need the bottom sealed off by the floor to draft properly."
A believe that boiler is not supposed to be raised up on blocks like that. The proper way to raise that up is to make a solid base that is the full dimension of the boiler jacket
This illustration of a top view looking down on the block base indicates that your 2 block base on the left is incorrect and the proper base is to use a solid base as shown on the right.
Regarding the wires in the photo; there is combustion air (that has oxygen in it so the fire has enough oxygen to burn properly) coming from under the burners. That basement air is a lot colder than the flame you see in the photo. So the air around those two wires and the aluminum pipe that is feeding the pilot burner with gas is the same temperature air that is on the floor about 2 feet away from your boiler. And I don't believe that air is hot enough to melt your shoes when standing next to your boiler.
The cold basement air rolls across the floor under the boiler and goes up past those wires keeping them from melting. That air then mixes with the gas and makes a flame. The heat from that flame continues to travel upwards thru the boiler to make the metal hot. That hot metal transfers that heat to the water inside the boiler. There is a circulator pump that moves that hot water to the radiators and returns the colder radiator water to the boiler to heat it up again.
It is all a vicious cycle that goes on and on that is keeping you comfortable. So don't worry about that wire, the manufacturer put it there on purpose.
Enjoy your warm home.
Mr. Ed.
Re: Boiler and DHW heating recommendations
Rinnai products are very good. I wouldn't pay a whole lot of attention to Google profile reviews. I presume these are consumer/homeowners and those have more to do with their relationship to the installer/service person, I presume. That said, THAT should be YOUR primary concern…rather than boiler brand.
psb75