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Re: Why must The 12 psi fill pressure be increased for 3 floor house?
And all of this is totally due to corporate America's peddling of pumps, pressure relief valves, pressure regulating valves, zone valves, etc.,etc. Give me an open system, convection flow, hand fed with the 'expansion/fill tank' in a closet on the top floor just slightly higher than the top floor radiators . Not to mention the altitude reading on the tri-dicator . What's that for again ?🤔🤔🤔?
MarkMurf
2
Re: Banging Zone Valves
The rule of thumb is more than 4 spring return zone valves on a fixed speed circulator, you should have a pressure activated bypass.
Here is a graphic that shows how a circulator runs up its curve as valves close off.
The bypass valve just "slips the clutch".
Better yet a properly sized, and setup delta P circulator.
Here is a graphic that shows how a circulator runs up its curve as valves close off.
The bypass valve just "slips the clutch".
Better yet a properly sized, and setup delta P circulator.
hot_rod
2
Re: Expansion tank location and air separator w/ Make up location
Trying to post a diagram. Not sure why won’t let me. In your diagram Ed the air eliminator and exp tank w make up are located at drain valve and purge point before highest temp red info before the tee. The system supply circulator is right next to that tee. Thanks for the help. Will keep trying to post picIf you have it in a jpg or png format (i'm sure other formats work as well) you should just be able to drag and drop it into the comment box. Not sure how it works on mobile
GGross
1
Re: Minnesota Right to Repair Law
Just want to shout out to all those farmers! They are men and women that are outstanding in their fields
Re: Found insulation stuffed inside boiler exhaust vent
This reminds me of the story about the mason who would install a pane of glass in a chimney passage. Then Brake the glass only after getting paid.
Intplm.
3
Re: Found insulation stuffed inside boiler exhaust vent
Thought I'd give an update on the off-chance it matters -
MassSave came by for an inspection, sweared up and down they never touch the exhaust for a blower door test, and thought maybe it was malicious. If it was then they did a real crappy job, and based on our few conversations, the only person my boiler tech doesn't like is George Soros.
Only other thing I noticed is that before, in freezing temps I'd see a little steam outside from the direct vent during a run. When they took out the batt in May, they adjusted the boiler again and now no steam. I assume that's a good thing for a non-condensing boiler?
MassSave came by for an inspection, sweared up and down they never touch the exhaust for a blower door test, and thought maybe it was malicious. If it was then they did a real crappy job, and based on our few conversations, the only person my boiler tech doesn't like is George Soros.
Only other thing I noticed is that before, in freezing temps I'd see a little steam outside from the direct vent during a run. When they took out the batt in May, they adjusted the boiler again and now no steam. I assume that's a good thing for a non-condensing boiler?
2468ben
1
Re: Questions on Roth tanks installation
...a good oil driver will notice if they arent drawing equally and will have their offive notify you so they can get in and address the issue)Exactly how would a 'good oil driver' or any delivery person know if they aren't drawing equally? Walk back to the truck after each tank is filled and note the gallons? That would only show a gross discrepancy.
Re: Adding Outdoor Wood Boiler as backup to Existing LP Combi
Thermal mass calculators can be found at geg calulators.
Water%20Thermal%20Mass%20Calculator%20-%20GEGCalculators.html
From Wikipedia:
Some basic information about firebrick.
"A fire brick, firebrick, fireclay brick or refractory brick is a block of ceramic material used in lining
furnaces, fireboxes and fireplaces.
A refractory firebrick is built primarily to withstand high temperature; but will also have a low thermal
conductivity for greater energy efficiency, usually dense firebricks are used in applications with Extreme
Mechanical, Chemical or Thermal Stresses, such as the inside of a wood fired kiln or a furnace, which is
subject to abrasion from wood, fluxing from ash or slag and high temperatures.
In other, less harsh situations such as an electric or natural gas fired kiln more porous bricks, commonly
known as "kiln bricks", are a better choice. They are weaker but much lighter and easier to form and
insulate far better than dense bricks.
In any case firebricks should not spall, and thier strength should hold up well during rapid temperature
changes"'.
Water%20Thermal%20Mass%20Calculator%20-%20GEGCalculators.html
From Wikipedia:
Some basic information about firebrick.
"A fire brick, firebrick, fireclay brick or refractory brick is a block of ceramic material used in lining
furnaces, fireboxes and fireplaces.
A refractory firebrick is built primarily to withstand high temperature; but will also have a low thermal
conductivity for greater energy efficiency, usually dense firebricks are used in applications with Extreme
Mechanical, Chemical or Thermal Stresses, such as the inside of a wood fired kiln or a furnace, which is
subject to abrasion from wood, fluxing from ash or slag and high temperatures.
In other, less harsh situations such as an electric or natural gas fired kiln more porous bricks, commonly
known as "kiln bricks", are a better choice. They are weaker but much lighter and easier to form and
insulate far better than dense bricks.
In any case firebricks should not spall, and thier strength should hold up well during rapid temperature
changes"'.
leonz
1