thermopex pipe or insulated pipe

thermopex pipe or insulated pipe

PostBy: shy0302 On: Fri Nov 08, 2013 6:57 pm

what size thermopex pipe or insulated pipe would I use when running from one house to the other it is 70 feet from cellar to cellar. the boiler is an efm 520 boiler.
shy0302
 

Re: thermopex pipe or insulated pipe

PostBy: Rob R. On: Fri Nov 08, 2013 7:15 pm

How much heat do you need to move?
Rob R.
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice/buck
Other Heating: Dad's 1953 EFM Highboy

Re: thermopex pipe or insulated pipe

PostBy: Wiz On: Fri Nov 08, 2013 8:46 pm

I've used thermopex 1 1/4 in....
Wiz
 
Stoker Coal Boiler: Keystoker Ka 6
Coal Size/Type: Casey Junk Coal :(

Re: thermopex pipe or insulated pipe

PostBy: shy0302 On: Fri Nov 08, 2013 9:54 pm

Rob R. wrote:How much heat do you need to move?

the house is about 2000 sq feet
shy0302
 

Re: thermopex pipe or insulated pipe

PostBy: Carbon12 On: Fri Nov 08, 2013 10:41 pm

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.
Carbon12
 
Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace

Re: thermopex pipe or insulated pipe

PostBy: 2001Sierra On: Fri Nov 08, 2013 11:31 pm

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.
2001Sierra
 
Hot Air Coal Stoker Stove: Keystoker 90 Chimney vent
Coal Size/Type: Rice
Other Heating: Buderus Oil Boiler 3115-34
Stove/Furnace Model: Keystoker 90 Chimney Vent

Re: thermopex pipe or insulated pipe

PostBy: Phil May On: Mon Nov 18, 2013 4:26 pm

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.
Phil May
 
Stoker Coal Boiler: EFM 700
Coal Size/Type: Buckwheat
Stove/Furnace Make: EFM
Stove/Furnace Model: 700

Re: thermopex pipe or insulated pipe

PostBy: Sting On: Mon Nov 18, 2013 6:02 pm

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
Sting
 
Other Heating: BurnHAM=NG-gas

Re: thermopex pipe or insulated pipe

PostBy: shy0302 On: Mon Nov 18, 2013 6:28 pm

the furnace that is the house has is 135000 btu it does a good job of heating in the winter.
shy0302
 

Re: thermopex pipe or insulated pipe

PostBy: Sting On: Mon Nov 18, 2013 7:00 pm

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
 
Other Heating: BurnHAM=NG-gas

Re: thermopex pipe or insulated pipe

PostBy: Carbon12 On: Mon Nov 18, 2013 7:03 pm

Dr Lanning,....I means Sting, knows of what he speaks.
Carbon12
 
Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace

Re: thermopex pipe or insulated pipe

PostBy: Rick 386 On: Mon Nov 18, 2013 7:41 pm

Carbon12 wrote:Dr Lanning,....I means Sting, knows of what he speaks.



No Dr. Lanning......... More like Yoda is that internet figure named Sting. Indeed !!!!!





http://www.youtube.com/watch?v=eExL1VLk ... video_user

Just in case that video does not load up properly.

Rick
Rick 386
 
Stoker Coal Boiler: AA 260 heating both sides of twin farmhouse
Hot Air Coal Stoker Stove: LL Hyfire II w/ coaltrol in garage
Coal Size/Type: Pea in AA 260, Rice in LL Hyfire II
Other Heating: Gas fired infared at work

Re: thermopex pipe or insulated pipe

PostBy: Carbon12 On: Mon Nov 18, 2013 9:15 pm

Dr. Alfred Lanning: THAT, Detective, is the right question. Program terminated.
Carbon12
 
Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace

Re: thermopex pipe or insulated pipe

PostBy: shy0302 On: Tue Nov 19, 2013 11:13 am

Sting 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

I will look into the heat transfer more to find out what I will be needing. thank you for your input. and answer
shy0302
 

Re: thermopex pipe or insulated pipe

PostBy: Sting On: Tue Nov 19, 2013 2:25 pm

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
Sting
 
Other Heating: BurnHAM=NG-gas