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Re: Oldest steam boiler still in use
Attending NEFI School in the 1950's, the Smith-Mills Rep boasted they had the oldest operational boiler in the country. A Mills Steam Boiler installed in a Cotton Mill in 1835 had been recently refitted. It had been fired with peat, cotton waste, corn stover, coal, wood and oil in it's lifetime, and was still going.
Have wondered since if it has yet survived? Would make a good story .....
Have wondered since if it has yet survived? Would make a good story .....
Re: Just to stir the pot...
Its no secret that the hydronic and radiant industry in the US has been declining. For years now. Mini splits have had a lot to do with that trend.
Heat pumps, air to water and water to water have the potential to save or possibly grow the hydronics industry.
With hydronics in the heat pump picture you can glue, solder, weld, press, groove, thread to your hearts content
So the trade stays in the game.
In new construction HP are certainly possible with the key being low loads and low water temperature distribution. As demonstrated in this upstate NY home recently built.
We will cover this more with some actual examples in next months Coffee with Caleffi it is such a hot topic.
Heat pumps, air to water and water to water have the potential to save or possibly grow the hydronics industry.
With hydronics in the heat pump picture you can glue, solder, weld, press, groove, thread to your hearts content
So the trade stays in the game.In new construction HP are certainly possible with the key being low loads and low water temperature distribution. As demonstrated in this upstate NY home recently built.
We will cover this more with some actual examples in next months Coffee with Caleffi it is such a hot topic.
hot_rod
2
Warren Webster 712 hb, lb & rb rebuild
Hey all, this was the apt bldg we were going to orifice but now the owner is not going for a full remodel, ie new windows, wall insulation etc. I checked the output on radiators and they are not quite big enough to derate them to 70% of edr so no go.
1st, anyone have any input on what the hb, lb & rb denote or is it inconsequential.
2nd, What are all your preferences, replace element with Barnes & Jones replacement elements or go Tunstall capsules?? Per Barnes & Jones, no new cap. remove orifice.
Thanks in advance,
Tim
1st, anyone have any input on what the hb, lb & rb denote or is it inconsequential.
2nd, What are all your preferences, replace element with Barnes & Jones replacement elements or go Tunstall capsules?? Per Barnes & Jones, no new cap. remove orifice.
Thanks in advance,
Tim
Re: Just to stir the pot...
Heres my take for WIW if anybody care about my take:
Water source heat pumps in any climate:
I would say they have a really good chance of heating a building except if the ground water temp is too low in an extreme location.
Air -Air:
Not going to make it. It will always require supplemental heat of some kind. Their efficiency goes down the colder it gets. Maybe ok to heat an interior space with little heat loss but I am considering only complete buildings here.
Insulation of the building only affects the size of the unit installed and does not determine if an air-air heat pump will heat the building to 70 degrees in a cold climate.
Water source heat pumps in any climate:
I would say they have a really good chance of heating a building except if the ground water temp is too low in an extreme location.
Air -Air:
Not going to make it. It will always require supplemental heat of some kind. Their efficiency goes down the colder it gets. Maybe ok to heat an interior space with little heat loss but I am considering only complete buildings here.
Insulation of the building only affects the size of the unit installed and does not determine if an air-air heat pump will heat the building to 70 degrees in a cold climate.
Re: Just to stir the pot...
The horse and carriage was replaced -- eventually -- by the automobile, because the automobile was accessible to more people and was desirable to them. Nobody mandated the replacement from Olympus (or Washington or Albany or Sacramento or wherever). There's a difference.
Re: DEAD WRONG
Ann Arbor I think has a process to line in place the clay main sewers to prevent having to replace most of them. Roots will get in the joints but unless it is a huge tree they can be cleaned out without destroying the pipe. Some probably has to do with the skill of the person operating the auger too. Getting rid of the tree gets rid of the roots. If clay is bedded properly and trees are avoided it lasts a very long time. I suspect corners were cut in packing and sealing the joints in a lot of installations which caused leaks and attracted roots.
mattmia2
1
[Price drop] Runtal UF-6 48" radiator in eastern MA
I have a runtal hydronic baseboard radiator/wall panel that we purchased in 2021 for a remodel and ultimately ended up not using. Still new in the box.
Length is 4 feet, height is 18 inches.
Price is $400. Location is in Metrowest Massachusetts. Local pickup strongly preferred, it is quite heavy.
https://runtalnorthamerica.com/product/hydronic-wall-panels/
Note the picture is of a shorter version.
Length is 4 feet, height is 18 inches.
Price is $400. Location is in Metrowest Massachusetts. Local pickup strongly preferred, it is quite heavy.
https://runtalnorthamerica.com/product/hydronic-wall-panels/
Note the picture is of a shorter version.
Re: Just to stir the pot...
This is a bit tiresome, so to add some fun, I will repeat the challenge I made some time ago -- and address it specifically to @ethicalpaul , @Hot_water_fan , and @GGross .
Here it is: provide and install a heat pump heating system of your choice in my building. Said system shall equal or exceed the performance of the existing heating system in all respects. If at the end of ten years, the total cost of said system, including operation and depreciation, is not more than the total cost which would have been incurred with the existing system, we'll buy it from you. Otherwise, you will, at your expense, remove said system completely and restore the building and all systems to the present condition.
Some useful parameters:
minimum ambient air temperature: -15 F
known (measured) total heat load: 270,000 BTUh
maximum peak electrical draw: 22 KW
provision to run during 10 day grid failure to be included
Time to ante up or fold, folks.
Couple of other useful bits...
Current power cost $0.35 per KWh, oil $3.00
Ducyt work is not an option
Ground source is doubtful
Here it is: provide and install a heat pump heating system of your choice in my building. Said system shall equal or exceed the performance of the existing heating system in all respects. If at the end of ten years, the total cost of said system, including operation and depreciation, is not more than the total cost which would have been incurred with the existing system, we'll buy it from you. Otherwise, you will, at your expense, remove said system completely and restore the building and all systems to the present condition.
Some useful parameters:
minimum ambient air temperature: -15 F
known (measured) total heat load: 270,000 BTUh
maximum peak electrical draw: 22 KW
provision to run during 10 day grid failure to be included
Time to ante up or fold, folks.
Couple of other useful bits...
Current power cost $0.35 per KWh, oil $3.00
Ducyt work is not an option
Ground source is doubtful
Re: Replacing a battery- operated thermostat with a EcoBee thermostat
Hello @tomsloancamp,
Since that unit appears to be cooling only (No Heat or Heat Pump) you probably don't need the White, the Blue could be used for the Common. The EcoBee thermostat may appreciate having the C wire connected. Here is a modified wiring diagram from the manual and other info.
Found here https://cdn.globalimageserver.com/FetchDocument.aspx?ID=C87180FE-DC30-45C5-B253-6C36B460A68C
I did not include the Pan sensor wires, I was not 100% sure of your description. It may just interrupt the Y from the thermostat to shut down the cooling, it may have power to it also.
Since that unit appears to be cooling only (No Heat or Heat Pump) you probably don't need the White, the Blue could be used for the Common. The EcoBee thermostat may appreciate having the C wire connected. Here is a modified wiring diagram from the manual and other info.
Found here https://cdn.globalimageserver.com/FetchDocument.aspx?ID=C87180FE-DC30-45C5-B253-6C36B460A68C
I did not include the Pan sensor wires, I was not 100% sure of your description. It may just interrupt the Y from the thermostat to shut down the cooling, it may have power to it also.
109A_5
1