Thermopex Pipe or Insulated Pipe
- Carbon12
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- Location: Harrisburg, PA
- Stoker Coal Boiler: Keystoker KA-6
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- Other Heating: Heat Pump/Forced Hot Air Oil Furnace
Crazy idea, perhaps, but has anyone tried suspending the insulated pex in the center of a larger diameter PVC pipe, sealing the ends with epoxy and drawing a vacuum on the PVC to create a vacuum bottle type insulating sleeve for underground installations of great length? Might work to drastically reduce heat loss.
- 2001Sierra
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I would assume the thermal expansion of the pex on a long run would make this difficult to achieve. Ideas are what we all thrive on, on this forum.
-
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Save your brain and go buy the pre made insulated pipe 1" will handle it. If you want to do a really good job get some 5" conduit and pull the premade stuff inside for some extra protection.
- Sting
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Don't guess
Don't simply say the house is size x
Do a proper heat loss calculation and/or determine how many BTU you need to move
THEN
and only after you know the liquid volume you need to move -- decide what size pipe to bury
Don't simply say the house is size x
Do a proper heat loss calculation and/or determine how many BTU you need to move
THEN
and only after you know the liquid volume you need to move -- decide what size pipe to bury
- Sting
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- Location: Lower Fox Valley = Wisconsin
- Other Heating: OBSO Lennox Pulse "Air Scorcher" burning NG
There are some rules of thumb which have appeared in various threads. For heat transfer, maximum gpm: 1/2” - 1.5 gpm, 3/4” - 4 gpm, 1” - 8 gpm, 1-1/4” - 14-17 gpm, 1-1/2” - 22-25 gpm, 2” - 45-50 gpm.
One gallon per minute of flow (GPM) will move NO MORE THAN 10,000 BTU's of energy in a fault tolerant manor.
With these rules 1-1/4 in minimal size to conform with your "guess"
There are other points here that may help do a search on
How do you connect two boilers?
I am sorry - my responses are limited -- You Must ask the right question
One gallon per minute of flow (GPM) will move NO MORE THAN 10,000 BTU's of energy in a fault tolerant manor.
With these rules 1-1/4 in minimal size to conform with your "guess"
There are other points here that may help do a search on
How do you connect two boilers?
I am sorry - my responses are limited -- You Must ask the right question
- Rick 386
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- Contact:
No Dr. Lanning......... More like Yoda is that internet figure named Sting. Indeed !!!!!Carbon12 wrote:Dr Lanning,....I means Sting, knows of what he speaks.
https://www.youtube.com/watch?v=eExL1VLkQYk&featu ... video_user
Just in case that video does not load up properly.
Rick
I will look into the heat transfer more to find out what I will be needing. thank you for your input. and answerSting wrote:There are some rules of thumb which have appeared in various threads. For heat transfer, maximum gpm: 1/2” - 1.5 gpm, 3/4” - 4 gpm, 1” - 8 gpm, 1-1/4” - 14-17 gpm, 1-1/2” - 22-25 gpm, 2” - 45-50 gpm.
One gallon per minute of flow (GPM) will move NO MORE THAN 10,000 BTU's of energy in a fault tolerant manor.
With these rules 1-1/4 in minimal size to conform with your "guess"
There are other points here that may help do a search on
How do you connect two boilers?
I am sorry - my responses are limited -- You Must ask the right question
- Sting
- Member
- Posts: 2983
- Joined: Mon. Feb. 25, 2008 4:24 pm
- Location: Lower Fox Valley = Wisconsin
- Other Heating: OBSO Lennox Pulse "Air Scorcher" burning NG
Don't loose sight of the load your already heating with the 520
If your current house needs 135K and this new one needs an additional 135K but your appliance - The 520 stoker -only has a gross/net of 220K/188K.
The 520 will only generate 69 percent of the necessary heat energy for both loads - on a good day - Use only the 520 and you will now have two cold houses
you will need to add energy to a primary loop system (from another source) such as the back up oil boiler
but "It depends" on your guess
I am simply a figment of the public internet
If your current house needs 135K and this new one needs an additional 135K but your appliance - The 520 stoker -only has a gross/net of 220K/188K.
The 520 will only generate 69 percent of the necessary heat energy for both loads - on a good day - Use only the 520 and you will now have two cold houses
you will need to add energy to a primary loop system (from another source) such as the back up oil boiler
but "It depends" on your guess
I am simply a figment of the public internet