Great presentation. Have you heard of the new Bosch on demand electric water heaters? They need 50A while in use but could simplify water heating and eliminate the tank and storage issues and heat losses.
Hi Ole! Thanks for the suggestion. The problem with on demand electric water heaters is the cost, the upfront cost is $800 - $1000. Our 40 gallon system with upgraded heating elements and a switch cost $260. The whole house versions need at least 3 dual pole breakers. Most people don't have that capacity in their breaker panel unless they upgrade (+ add $1000). Also, on demand electric water heaters only heat the water approximately 60 degrees over the incoming water temperature. Our incoming water temperature tends to be 45 degrees in the winter. The electronics for on demand water heaters are also most complex than a small tank. We also consider that our 40 gallon tank holds water in case of emergency. The two perceived advantages of an on demand system are unlimited hot water (practicing using less is better) and longevity (which is complicated by the more complicated flushing maintenance to the system and higher upfront costs).
@@MarishaAuerbach The model we saw at Home Depot was about $175. Of course it is for one location. It requires a double pole 50 A breaker with #6 wire (range wire), which of course could be difficult to install. For Kailash Ecovillage it will be perfect since the points of use are separated by a wall, the ideal configuration. We plan to replace all our old fashioned tank models as the tanks fail and need replacing. We are also contemplating installing a thermal solar device to preheat all the ecovillage water up to 80F so they need to do less work. The trade-off is the incoming cold water will no longer be super cold 45F it is now.
@@oersson Zane shared the information from my last post. I think this conversation is best taken off-line since we are neighbors. There's a number of points that you and Zane could discuss in further detail.
Hi Marisha! I'm really interested in having more information about this wonderful biogas system! Can you give me few references or a good book that I can read? Thanks a lot and merry christmas!
What climate do you live in? Biogas systems are much easier to work with in Tropical and subtropical climates because the microbes go to sleep during our winters here in the temperate zone of Oregon. We got our system from Hestia biogas. I think they are no longer in business. It took us about 3 years before the system started working and we still are experimenting with it. Hestia did not provide the support they promised so it was quite a bit of trial and error (lots of error) before getting it going. Unfortunately, I don't have a good reference for temperate climates or the United States. I'd imagine that there might be resources in other places. I'd look to organizations that work with communities in the tropics.
![Noob To Max With DRAGON REWORK In Blox Fruits [FULL MOVIE]](http://i.ytimg.com/vi/LnBMOinoOvA/mqdefault.jpg)
Do. You have the design of the biogas digester ? Does it work in the cold winters?
Great presentation. Have you heard of the new Bosch on demand electric water heaters? They need 50A while in use but could simplify water heating and eliminate the tank and storage issues and heat losses.
Hi Ole! Thanks for the suggestion. The problem with on demand electric water heaters is the cost, the upfront cost is $800 - $1000. Our 40 gallon system with upgraded heating elements and a switch cost $260. The whole house versions need at least 3 dual pole breakers. Most people don't have that capacity in their breaker panel unless they upgrade (+ add $1000). Also, on demand electric water heaters only heat the water approximately 60 degrees over the incoming water temperature. Our incoming water temperature tends to be 45 degrees in the winter. The electronics for on demand water heaters are also most complex than a small tank. We also consider that our 40 gallon tank holds water in case of emergency. The two perceived advantages of an on demand system are unlimited hot water (practicing using less is better) and longevity (which is complicated by the more complicated flushing maintenance to the system and higher upfront costs).
@@MarishaAuerbach The model we saw at Home Depot was about $175. Of course it is for one location. It requires a double pole 50 A breaker with #6 wire (range wire), which of course could be difficult to install. For Kailash Ecovillage it will be perfect since the points of use are separated by a wall, the ideal configuration. We plan to replace all our old fashioned tank models as the tanks fail and need replacing. We are also contemplating installing a thermal solar device to preheat all the ecovillage water up to 80F so they need to do less work. The trade-off is the incoming cold water will no longer be super cold 45F it is now.
@@oersson Zane shared the information from my last post. I think this conversation is best taken off-line since we are neighbors. There's a number of points that you and Zane could discuss in further detail.
@@MarishaAuerbach Thanks, once again, for sharing this! Will discuss with Zane next time we meet.
What was the insulation type or system used?
We insulated with polyisolate foam board.
Hi Marisha! I'm really interested in having more information about this wonderful biogas system! Can you give me few references or a good book that I can read? Thanks a lot and merry christmas!
What climate do you live in? Biogas systems are much easier to work with in Tropical and subtropical climates because the microbes go to sleep during our winters here in the temperate zone of Oregon. We got our system from Hestia biogas. I think they are no longer in business. It took us about 3 years before the system started working and we still are experimenting with it. Hestia did not provide the support they promised so it was quite a bit of trial and error (lots of error) before getting it going. Unfortunately, I don't have a good reference for temperate climates or the United States. I'd imagine that there might be resources in other places. I'd look to organizations that work with communities in the tropics.
Soil that feels like cake:)