WHY EARTH TUBES?

Why Earth Tubes? When I first stumbled upon earth tubes, I was searching for a natural and passive means of air conditioning for homes. I remember seeing a photo of such a system in an arabic country in one of the many green architecture books I have read. I couldn't find that system, but was very pleased with what I had found. Earth tubes are a method to precondition the air for your home or building. The system is very simple, .tubes are buried under the ground where the temperature stays relativelly constant. There is an inlet for the ambient air to enter the system. As it travels through the tubes, it is conditioned by the temperature under ground. In the winter the air is warmed, in the summer it is cooled. The air then enters your building by an outlet using a small fan to keep the air flowing. Thus your air is pre conditioned.



Who am I? My name is Chris Carrier. I am a husband, a father, a student at Thompson Rivers University, an employee with the city of Kamloops, and have been a number of different things at different times and stages of my life. I am not a typical student, since I am in my early forties. I have been interested in green buildings and architecture since my days as a tree house dweller in Uclulet, BC. I am also a budding writer. My published works include "Dragon Problem's" by Hur publishing and an article entitled "Of Kids and Hobbits" published in Kamloops Momma, a local parenting magazine.



What is the goal of the research? The main goal of my research is to determine if earth tubes are a viable option for Kamloops, BC. In addition to this, I would like to find low impact technologies that could be used in the construction industry that could be used to lessen the environmental impacts of the way we do things in the construction industry. As the planet continues to warm, a leaner, meaner, way of constructing homes and buildings can be achieved, today. The technology exists to change course. I have taken my LEED Green Associate course and hope to incorporate some of the technologies into my research.



As part of my research, I have been building a small cabin on a relatives property. I have built an earth tube system and have been testing it throughout the summer. The cabin will become a sort of testing ground for different systems I am interested in. The cabin has been built old school, using a hand saw, a cordless drill, and a hammer and nails. I have been posting pictures on the blog to keep people updated with my project.

Sunday, October 23, 2011

I haven't had a chance to post lately, heres where the cabin is at.

I am in the middle of writting mid terms and so I haven't been doing much on the cabin. Here's where it's at though. The roof is on, I got the roofing at RONA for half price, and had my father in law help me get the roof on. The cabin is fully insulated and all the windows are in. I may have to move my earth tube inlets since it is probably where my woodstove is going. My inlaws found me a beautiful old wood stove, and fixed the seals. I'm hoping to get it installed next week. Once that is done, I want to figure out what to do for the interior. I'm going to put in slate tiles for a good portion for the passive heat their mass will collect. I'll probably put in laminate floor through the rest of the cabin. My layout will be a little different than I had designed since I have to put the wood stove in a different spot than I had imagined (due to the trees on the East side). Here are some photos.



Sunday, October 2, 2011

Passed my Green Associate exam yesterday!

I wrote my green associate exam yesterday in Vancouver and passed. So now I have a proffesional accreditation as a LEED tm Green Associate.

Monday, September 26, 2011

I spent Saturday up at the cabin.



I had a nice afternoon up at the cabin. My In-laws found a beatiful old wood heater for my cabin, I didn't get a picture of it yet but will post it as soon as I do. It is a vintage beautiful piece that will look very nice in the corner. They also gave me a table and some chairs. Now the cabin is beginning to look and feel like a cozy place to hang out. I will be spending some time up there this week to do some studying. Here is a picture of the inside and outside.

Saturday, September 10, 2011

I changed the positioning of the fan.

I almost forgot to mention, I put the fan outside of the cabin. The air flow from the fan, which is 80 CFM is too high when it is inside the cabin. Therefore I put the fan housing outside and below the main entry into the cabin. This will allow the air to enter the building more gradually and be far more comfortable for the building occupants.

THe cabin is just about closed.

Here are some updated photos of the cabin. I am just about to lock up. I put in the door and the ceiling joists. The walls are pretty well insulated except for one gable. Once that is done, I will be putting up my vapour barriers and will decide what to do for my interior finishing. I am pondering using boards from used pallets since it would be free. It would be nice looking, but very labour intensive. It has been unbelievably hot at the cabin the last week or so. I had high reading of 38 degrees celcius at the tube intake. The data logger is in the shade. The cabin gave me slighly lower readings, but that logger is in a shady spot. The tubes continue to work well, but I can only get 24-32 hours of run time before the battery runs down. I think some sort of timer would be good so It would only run during the peak cool or warm periods. Anyways here are the new photos.


Full moon last night!


I spent the night at the cabin last night so I could get some work done. The night was crystal clear with nary a cloud in the sky. The moon was bright and full. Here are a couple shots.

Friday, September 9, 2011

Heading up to the cabin tonight!

I'll be heading up to the cabin tonightto get my building envellope finished. Hopefully, the battery lasted for the last few days so I can get good data for my report. I will be posting part 4  and 5 of the photo recap in the near future. I hope everyone has a great weekend after the first week of school. Two more semesters to go.