Best Of
Re: Smoke smell in house with oil boiler
That's a positive pressure boiler. How positive is it?
HVACNUT
Re: Rococo Dining Room Radiator Install- Why Are These So Rare?
one of our clients found and purchased one a dozen or so years ago and we piped in for his dining room if memory serves me. They are a thing of beauty.
Re: Rococo Dining Room Radiator Install- Why Are These So Rare?
You need an "appliance" hand truck (with strap). One very strong man or a guy who does it for a living. Two guys is safer. This is no joke. Any meat head can crudely move heavy stuff, but the finesse to not damage walls & wood steps is the key. Mad Dog
Re: Rococo Dining Room Radiator Install- Why Are These So Rare?
great score! That one and the circular have to be the most coveted.
hot_rod
Re: Outdoor Wood Boiler with cast iron radiators?
Radiators will work just fine. The BTUh output of a radiator varies wwith the water temperature, so you will want to consider that.
Otherwise piping and pumping the system is going to be pretty much the same as any other hydronic system. I realise that oxygen barrier PEX is very attratctive, but if you are inclined to use it make sure that you have some goof proof mechanism to avoid overheating it…
Re: Long-term project to update old hydronic -- let's start with the Mercoid switch!
I would guess the EX tank is too small as well.
Re: What does "Wet Steam" mean to you?
I wouldn't be surprised if the boiler mfgs. just winged it, trial and error and hope for the best.
If their boiler doesn't steam well with 2" pipe they up size the header until it is passable.
between the piping and skimming you get the steam down to a reasonable condition.
Re: What does "Wet Steam" mean to you?
Any steam which is not 0% water content is wet steam and all low pressure boiler steam is wet. If a typical fraction is say 5% how much that fraction can be influenced by surging/excessive turbulence at the surface (causing higher initial water content), lack of dropout from high riser and header velocity or short travel distance to the mains may be influenced by the specifics of the application. The higher the water content the lower the enthalpy of the steam per volume and thus the less heating capacity. That I know. What I don't know is regardless of how the steam started out by the time the steam reaches and starts filling a radiator will it still have proportionally more or less water?
Re: What does "Wet Steam" mean to you?
Measuring the water content in steam is not practical in residential or commercial work. The equipment required would be cost prohibitive.
This would only be done on HP systems like electrical generation or process applications