Best Of
Re: Used Diesel While We Wait for Delivery = Black Smoke
Usually this is fine. I used to do that when I burned oil, and the tank ran out. Have it looked at.
Where in Southern MD? Maybe "Deep in the Heart of Waldorf"?
Re: Steam system questions
I’ll get a picture of the control side tomorrow, thanks again…….

Re: New Mitsubishi system set up
so the builder speced the equipment.
that doesn’t work out well.

Re: Oil tank safety valve
This is has been a very educational thread. I have an update. One of my dad's friends, it turns out his brother is a plumber and knew my dad. I guess they were in some of the same Veterans groups over the years. He popped over to take a look at the tank. He said the tank looks in good shape to him, but my dad should have updated the valve years back. He is going to take care of that for me and service the boiler and make sure everything is good going forward. He said the tank is about 40 years old, so he reccomends monitoring it and letting him know of any signs of an issue, or alternatively, he will put a new one in at some point this year before a renter comes in if I go in that direction. He said the boiler looks good, and thinks that it will probably go for a quite a while, but said you never know since it is older, but looks well maintained. He seemed to think he could get the tank out of the closet without taking down the wall, which would be a great plus.
My wife and I always loved my dads house. It is a 3 bedroom ranch style home about 1200 sf with a 2 car garage. It was perfect for what he needed in the latter part of his life. Our kids are teenagers now, so when (if) they ever move out, we might move to my dads house for the same reasons he bought it. Easy to maintain, small but nice yard and not expensive to heat. So, we plan to rent it out for a few years and maybe move in. It is in the town next door to where we live. So, we will see how it goes.
Thanks for the information. This is a great thread for people who never dealt with oil heat and come across these kinds of scenarios.

Re: Having a Hissy on this steam system
@Intplm. don't know, probably there for many years. I'll slap a new one on. Another vent is rough too, not as bad a this one.

Re: Underperforming system in cold temps
Personally I would leave all the strainers out, the mix valve, the Y strainer, etc. The hydraulic sep will remove down to a 5 micron particle.
The strainers were good for start up, I would get rid of that obstacle.
\While not ideal, that very short section of 3/4 at the manifold may not be an issue. You get a velocity increase across it like you do an orifice in a balance valve. Put that low on the list of things to change.

Re: Underperforming system in cold temps
Now you need to figure out where the goop on the filters was coming from!
Re: Our emergency steam boiler replacement in Brooklyn last week looked like this:
There not as expensive as you'd think. Worth every penny and you really canr get around using them. I have sone aluminums but I prefer Iron. They hold up better to a cheater bar and the extra weight means you use less muscle and tendon...Mad Dog
Re: Underperforming system in cold temps
“Does that grundfos (43 watts in photo) also give a gpm estimate? What does it show for gpm when mixing valve is on full hot? And on full cold? Does this supply one of the manifolds in question?”
yes sir it does, however that is the pump that pushes water to the two garage floors.
The black pump above it is the one for the house - and that does not show GPM. The designer told me to set it at auto adapt however I never did that because I was experiencing flow issues I always have it set to max