Wow. In the private sector we would call this a cluster…. So after reading the blog I am really curious what it would cost to insulate those 1% of pipes exposed to freezing temperatures? Would the insulation of the 1% piping allow us to eliminate the highly corrosive glycol from the system? Is the glycol the issue or is it the lack of the additive to reduce the pH? It would also be interesting to hear from our current vendor exactly what the $19K flush included? Was the current vendor selected based on price (low bidder)?
I do not recall EEI providing a quote for insulating the pipes around the air handlers. They just presented this as one of the possible solutions. Since the air handlers are scheduled for replacement in 2026, EEI seemed to think that the best solution would be to move that forward a year and to use a design for their replacement that would eliminate the need for glycol in the system.
My understanding is that glycol can be used in the system as long as it is good quality glycol with anti-corrosion additives and the water quality is monitored. It's simpler and safer to run a system that doesn't need glycol.
My understanding is that the Feb 2023 system flush was associated with the installation of the new boilers. I'm assuming that this was part of that contract and that it was put out for bids in an RFP, as this was an expensive project. Details on this would need to be researched. The board said it was going to gather this historical paperwork together and put it on the website for the public to inspect.
It would be nice to know if a boiler system with glycol is more efficient (better heat transfer) than water alone. Nice to see total cost impact. Seems like the glycol system requires more maintenance. Home heating systems do not require glycol.
Wow. In the private sector we would call this a cluster…. So after reading the blog I am really curious what it would cost to insulate those 1% of pipes exposed to freezing temperatures? Would the insulation of the 1% piping allow us to eliminate the highly corrosive glycol from the system? Is the glycol the issue or is it the lack of the additive to reduce the pH? It would also be interesting to hear from our current vendor exactly what the $19K flush included? Was the current vendor selected based on price (low bidder)?
I do not recall EEI providing a quote for insulating the pipes around the air handlers. They just presented this as one of the possible solutions. Since the air handlers are scheduled for replacement in 2026, EEI seemed to think that the best solution would be to move that forward a year and to use a design for their replacement that would eliminate the need for glycol in the system.
My understanding is that glycol can be used in the system as long as it is good quality glycol with anti-corrosion additives and the water quality is monitored. It's simpler and safer to run a system that doesn't need glycol.
My understanding is that the Feb 2023 system flush was associated with the installation of the new boilers. I'm assuming that this was part of that contract and that it was put out for bids in an RFP, as this was an expensive project. Details on this would need to be researched. The board said it was going to gather this historical paperwork together and put it on the website for the public to inspect.
It would be nice to know if a boiler system with glycol is more efficient (better heat transfer) than water alone. Nice to see total cost impact. Seems like the glycol system requires more maintenance. Home heating systems do not require glycol.