Category: HVAC

Letter Re: Corn Burning Stoves

Sir, Just wanted to thank you for your blog and all the good information available through it.  Several times in the section on selecting the midwest for a retreat, you mention the lack of available fuel sources.  Corn burning stoves are fairly common in this part of the country.  They tend to be in the hands of those who don’t pay retail for corn at this time, and certainly given modern means of agriculture the Midwest (Kansas, Iowa, South Dakota, Nebraska) can produce enough corn for its people and corn stoves.  Who knows if this would hold true in a …


Letter Re: Survival Architecture: Building a Retreat that is Defensible, Sustainable and Affordable

James Wesley: On March 25, we saw a post by Phil M. indicating that “At a point of 6′ below the surface of  the earth, temperatures stays constant at around 60°F.”  This may only be true for very specific locales.  For most locations, constant ground temperature reflects the average yearly air temperature for the locale, and ground temps are only constant at a depth of about 30 ft. and below.  At depths above 30 ft., ground temperatures begin to increasingly modulate up and down following seasonal air temperature.  In areas of the world with seasonal temperature changes similar to the …


Letter Re: Do-It Yourself HEPA Air Filtration for NBC Shelters

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Friends, In the wake of the Japanese nuclear plant melt-down situation, I called a safe room manufacturer for a hand cranked air filter.  It was over $2,000.  Too much.  I did learn that you need both particulate (HEPA) and gas (carbon) filters.   I have jury-rigged an NBC air filtration system.  Here it is: Go to a hydroponics store or find one online.  Yes, the one’s that people go to in order to grow marijuana. You will need an inline fan.  I used a  continentalfan.com AXC150B-C fan.  It is a little more expensive but German engineering costs more.  (Quieter too). You …


Letter Re: Do-It Yourself HEPA Air Filtration for NBC Shelters

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Friends, In the wake of the Japanese nuclear plant melt-down situation, I called a safe room manufacturer for a hand cranked air filter.  It was over $2,000.  Too much.  I did learn that you need both particulate (HEPA) and gas (carbon) filters.   I have jury-rigged an NBC air filtration system.  Here it is: Go to a hydroponics store or find one online.  Yes, the one’s that people go to in order to grow marijuana. You will need an inline fan.  I used a  continentalfan.com AXC150B-C fan.  It is a little more expensive but German engineering costs more.  (Quieter too). You …


Two Letters Re: Some Woodstove Experience

James: I’d like to suggest to Yvonne with the woodstove that she could mount a half inch thick [steel] plate to the top of her stove to get more cooking area.  The plate could hang out past the edges of the stove to give her more cooking area.  She could bolt or weld it on.  It sounded like she was tight on money, so this would be a cheap and easy fix. – Tim X. Dear Mr. Rawles, Tom in Juneau is correct. Tulikivi soapstone heaters from Finland are the cat’s meow. They are the gold standard for contra-flow masonry …


Letter Re: Some Woodstove Experience

Sir: For the true self-sufficient survivalist the Tulikivi soapstone heater (with bake oven) [from Finland] is the supreme method of heating and cooking in a home.   We replaced a dangerous old fireplace with a Tulikivi four years ago and admit they are very expensive, but worth every dollar.  A two hour fire heats our wel- insulated 1,200 square foot home via one two hour fire per day. On very cold days…15F and below. We burn two shorter fires in the morning and evening of one and a half hours each. The wood savings over a conventional wood stove is approximately 50% and the even radiant heat …


Some Woodstove Experience, by C.V.Z.

Being without electricity in the middle winter is cold. We didn’t have any heat during an ice storm. With that winter in mind, we finally purchased a wood stove for heat and cooking opportunities. As the wife and mother, I had this horrible image of an old black pot bellied stove belching smoke and catching the roof on fire. I could hear the neighbors complaining about the smell and my kids going to school smelling like they had just burned down the house. Images of black walls and ceilings and truck loads of firewood haunted me with every winter wind. …


Earthships: Sustainable Living for TEOTWAWKI, by Sgt. P.

How much did the average home owner in the United States pay for utilities last month?  Last Year?  How much will they pay for utilities by the time they pay off their mortgage?  If they averaged $250 per month in utilities, which is below the national average of “$264.33 per month” (Statistic quoted by White Fence) the answer is shocking.  With the average home loan lasting 30 years, without taking into consideration rising costs, utilities would be $90,000!  For that amount of money this homeowner could put one child through a four year-degree at a very nice university.  What if …


Alternative Energy Sources For Emergencies, by Smiledr

Being in preparedness mode opens your eyes to a number of factors, not just Beans, Bullets and Band-Aids. As a battalion coordinator for the Los Angeles Fire Department’s CERT program, I was asked to give a presentation on Alternative Energy sources for an emergency situation. My research into this was very enlightening, and I found a number of great ideas. This does not encompass everything available, but it is fairly thorough. So, why Alternative Energy? In an emergency, such as a major earthquake, there can be a loss of power, gas and water. If it is a short-term problem e.g. …


Letter Re: One Man’s Approach to Preparedness

Sir: Just to let everyone know, I am new to the prepper lifestyle, and new to the kind of changes one must make in one’s life to begin saving as opposed to spending, or maybe a better way of saying it is to say “ changing what your spending your money on ”   where before it may have been a new dirt bike, man toy,   or flat screen television, now my extra cash (after my tithe and savings) is going to preparations.   My change in spending habits quickly brought about a realization , that some items that …


Letter Re: Mobile Fuel Storage System

James, Let me introduce your readers to propane and the many possibilities it offers your planning and TEOTWAWKI preps, that you will likely never have thought of before. Over the last number of years I have carefully thought out and planned a “system” if you will of key pieces of equipment which all operate on a single, inexpensive and highly efficient and large mobile fuel storage system. Naturally, I have the standard wood stove and gasoline operated family vehicle(s), but what is most interesting is some of the items I have been working on and extensively testing/ using on the side.   …


In Defense of the Fortress Mentality–and Architecture

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I recently got an irate letter from an outspoken Peak Oil commentator who often stresses “community agriculture” and “sustainable development.” He castigated me for “advocating a fortress mentality…” and “encouraging gun-buying…” I think that he meant those as insults, but I took them as compliments. I am indeed an advocate of the fortress mentality, and fortress architecture. The two go hand-in-hand. As I pointed out in my book “How to Survive the End of the World as We Know It”, modern American architecture with flimsy doors and large expanses of windows is just a 70 year aberration from a global …


A Home-Built Wood-Fired Oven, by Mr. W.F.O.

In the spirit of “off-the-gridness” and in an effort to be more self-sufficient, my wife and I recently tackled a new project at home.  We built a wood-fired oven (WFO). A few times a year we loose power for various reasons.  We can cook (and have) on and in our woodstove.  During the summer months, this makes the house very hot.  An outdoor wood-fired oven gives us another option for many kinds of cooking.  It also provides a great accompaniment to the barbecue.  The WFO is a lot of fun to built and use.  It provides a lot of feel …


Letter Re: Introduction to UV Air Treatment

Dear Editor: Can Michael M. provide a bit more detail in his process of developing a UV air treatment solution?  The part about” “Slack tube manometer and did a static test with the air handler running and the house closed up tight. I had a negative pressure of .45″ water column vacuum. I concluded that I needed a fresh air return duct if I was going to use my air handler to try and pressurize the house” is difficult for me to visualize.  Is the manometer on the upstream side of the Air Handler fan or the down stream?  Also …


Introduction to UV Air Treatment, by Michael M.

My interest in ultraviolet (UV) light systems began a number of years ago with the introduction of a UV system in the discharge effluent stream of water at the wastewater plant where I work. If it works in water I thought, then why not air! The removal of pathogens from the water was most impressive and a mystery, So I hit the books and the Internet to learn more.   Here is a light summary of what I learned: The sun generates ultraviolet rays. These rays are natures way of purifying the air. When sun passes thru a prism it’s …