Very impressive system. I'm working on something similar though I'm retrofitting existing buildings. I'm doing my own engineering so I would love to see a more detailed video with some of the engineering details like actual BTU/water volumes and other system parameters.
I love this video, and I watched it more than a few times. I am going to build a house similar to yours. I want to know what the fabric material is and where did you get it for the thermal stratification?
Here’s a limitation on thermal storage, 25000 gallons at 160 degrees will store enough energy to offset 100 gallons of fuel. While that’s significant the cost to get there makes a ROI impossible. Your system is incredible though! I have been in HVAC my whole career and have specialized in hydronic and radiant heat. I try and use the 90-10 rule. If I can get 90% performance for 10% of the cost I always take that approach. I have given storage some thought and here’s what I have come up with. In a heating climate it’s not uncommon to have a 48 to 60” foundation wall that if your building on a slab needs to be backfilled. My thoughts have been to insulate from above the footings to an R30, heat the backfilled sand with pex tubing at least two levels and place several 6” ducts running just below the R10 insulated slab and open and close dampers to create a gravity flow for heat. In addition run a pex line through the thermal mass near the top to preheat your domestic water. Since you heat with wood as a backup the ducts right below the slab could also store heat if the wood was making your home too warm by opening dampers and possibly adding fans.
I am looking into this at the moment. My house is well insulated about 230m2 of floor space. It has an existing underfloor heating system and I burn about 700 lts of kerosene per annum. The pit storage system PTES looks more diy friendly, thinking of using PV to heat it as I have a lot of spare capacity in the summer with an existing PV system, also the panels are cheap now to further expand It appears looking at some projects in Denmark they only insulate the top of the pit, and line the pit with a 2mm liner. Thinking of using gravel and water as the fill material, to get the heat capacity and the structural support all in one
Thank you for the video! Very nice and calm presentation.. :) Just wondering, what type of water are you using for the tank? Is it distilled or somehow treated? Am wondering about how often you have to change the water, also how fast is the stratifier gonna clog? Because it basically works as a filter..
Hey! You did a great job. I have one question: Do you have any further Keywords and/or links for this sock (stratisfier?) in your tank for me. I can't find any searching results for this item to buy or even to learn more about this technology (e.g. material). I'm interested in building a tank as a Diy project. Please help. European engery crisis is here :/ Thank you so much!!!
Very impressive system. I'm working on something similar though I'm retrofitting existing buildings. I'm doing my own engineering so I would love to see a more detailed video with some of the engineering details like actual BTU/water volumes and other system parameters.
I love this video, and I watched it more than a few times. I am going to build a house similar to yours. I want to know what the fabric material is and where did you get it for the thermal stratification?
Here’s a limitation on thermal storage, 25000 gallons at 160 degrees will store enough energy to offset 100 gallons of fuel. While that’s significant the cost to get there makes a ROI impossible. Your system is incredible though! I have been in HVAC my whole career and have specialized in hydronic and radiant heat. I try and use the 90-10 rule. If I can get 90% performance for 10% of the cost I always take that approach. I have given storage some thought and here’s what I have come up with. In a heating climate it’s not uncommon to have a 48 to 60” foundation wall that if your building on a slab needs to be backfilled. My thoughts have been to insulate from above the footings to an R30, heat the backfilled sand with pex tubing at least two levels and place several 6” ducts running just below the R10 insulated slab and open and close dampers to create a gravity flow for heat. In addition run a pex line through the thermal mass near the top to preheat your domestic water. Since you heat with wood as a backup the ducts right below the slab could also store heat if the wood was making your home too warm by opening dampers and possibly adding fans.
I am looking into this at the moment. My house is well insulated about 230m2 of floor space. It has an existing underfloor heating system and I burn about 700 lts of kerosene per annum. The pit storage system PTES looks more diy friendly, thinking of using PV to heat it as I have a lot of spare capacity in the summer with an existing PV system, also the panels are cheap now to further expand It appears looking at some projects in Denmark they only insulate the top of the pit, and line the pit with a 2mm liner. Thinking of using gravel and water as the fill material, to get the heat capacity and the structural support all in one
Thank you for the video! Very nice and calm presentation.. :)
Just wondering, what type of water are you using for the tank? Is it distilled or somehow treated?
Am wondering about how often you have to change the water, also how fast is the stratifier gonna clog? Because it basically works as a filter..
I would like to know this as well. Using glycol antifreeze on a large system like that is very expensive.
Hey!
You did a great job.
I have one question: Do you have any further Keywords and/or links for this sock (stratisfier?) in your tank for me. I can't find any searching results for this item to buy or even to learn more about this technology (e.g. material).
I'm interested in building a tank as a Diy project.
Please help. European engery crisis is here :/
Thank you so much!!!