Best Of
Re: Strange smell coming off new pipe?
Probably some flux or the like on the outside of the pipe. Rag with some dish soap should take care of it.
Re: How convoluted can it be?
A comment on having an unpowered air intake on one side of a house and an unpowered exhaust vent on a different wall.
Don't.
Why? In windy conditions the difference in the wind pressure at the two locations will be enough to completely mess up the draught on the boiler or what have you — if not even reverse it. This is less of a problem with either forced draught or induced draught, but it still isn't great.
It's not a problem if the air intake is from the basement or other interior space.
Re: Where does oil leak in a furnace?
Oil stains floors. Concrete, wood etc. If there is a stain on the floor but is dry as you say then there is no leak. There was only a small spill a long time ago that shouldn't be of any concern.
Re: Help, radiator not sure if needs airvalve
Yes, it needs an air vent. All that escaping steam means the boiler takes on a lot of make-up water, which can rot it out before its time.
Re: Where to install the magnetic dirt separator?
The return is the best place to install any type of filter. You want to get the 💩 out of the pipes before it gets to any of the important parts of the system.
Of course that is assuming that you have most of your circulators and zone valves (if any) on the supply side of the boiler.
Re: Used Diesel While We Wait for Delivery = Black Smoke
That's a "split-bus" panel, where you have to turn off all six breakers in the top group to de-energize the entire house. Probably dates back to the 1950s, not sure it's Code now.
Re: Dual purpose thermostat?
With the garage I would have left it as is. Why?
Because you want to keep the pipes from freezing. If the water is circulated and heated the pipes will not freeze unless you have a power failure unless the circulator and /or boiler fail.
Now adding a zone valve and a thermostat adds to the complexity and are more failure points. If the pipe is insulated its not going loose that much heat. Stat goes wacky=pipes freeze. Zone valve fails=pipes freeze.
If you leave the zone valve in place with a thermostat add a strap on aqustat wired in parallel with the thermostat to have the aqustat open the zone valve and start boiler/circulator if the pipe gets cold. You can leave the aquastat set at the lowest temp it can be set at probably around 100 degrees.
Re: Nuisance lockouts and flame failures
You need to check your gas pressure. you seem to be a little low on your CO2 which obviously means a little high with your O2. check it against the spec.
is this a high fire measurement? if it is I would be surprised it when it goes to low fire is when you lose it your O2 should get even higher in low fire.
Re: Monoflow system does not heat well
I hate to ask this but…are you sure the pump is pumping in the right direction?
Also: a 007 may be a bit too small for a Monoflo system. I’d use at least a 008 or a Grundfos ups15-58 on high speed.