Friday, January 16, 2015

rocket mass heaters in a nutshell

rocket-mass-heater-warm



  • heat your home with 80% to 90% less wood



  • exhaust is nearly pure steam and CO2 (a little smoke at the beginning)



  • the heat from one fire can last for days



  • you can build one in a day or two



  • folks have built them spending less than $20






The verbose details on rocket mass heaters

This could be the cleanest and most sustainable way to heat a conventional home. Some people have reported that they heat their home with nothing more than the dead branches that fall off the trees in their yard. And they burn so clean, that a lot of sneaky people are using them illegally, in cities, without detection.



When somebody first told me about rocket mass heaters, none of it made sense. The fire burns sideways? No smoke? If a conventional wood stove is 75% efficient, doesn't that mean the most wood you could possibly save is something like 25%? How do you have a big hole right over the fire and not have the house fill with smoke? I was skeptical.



And then I saw one in action. The fire really does burn sideways. The exhaust is near room temperature - and very clean. The smoke doesn't come back up because a huge amount of air is getting sucked into the wood hole. Neat! I sat on one that had not had a fire in it for 24 hours - it was still hot!



How it works:



rocket-mass-heater-diagram



The sticks stand straight up. Only the bottom ends of the sticks burn. The fire burns sideways. Since the heat riser is insulated, it gets freaky hot. This causes a strong convective current. When the hot gasses hit the barrel, it gives off a lot of heat, which cools the gasses which get much smaller and easier to push around. The gasses that exit are usually just carbon dioxide and steam.



The real magic happens with the heat riser. The strong convective current is what makes the air get sucked in through the wood feed so that the fire burns sideways and the smoke doesn't come out. It is also the place where it gets so hot that all of the smoke is burned.



rocket-mass-heater-animation



Above is a much better image showing the mighty power of the insulated heat riser, reburning the smoke and powering the whole system.



The first picture below represents the most thorough rocket mass heater design I have ever seen. Followed by the rocket mass heater that was created from that design. These are both the products of the leaders in rocket mass heater innovation, Ernie and Erica Wisner, who have built more than 700 rocket mass heaters.



Source: http://www.richsoil.com/rocket-stove-mass-heater.jsp



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from energyhouse http://energyhouse.livejournal.com/36948.html

Modern Hot Tubs

Thursday, January 8, 2015

What You Need to Know About Space Heaters

Cold weather means a quest to find warmth, and for many people this winter, that means a space heater.



"A space heater is a relatively efficient way to heat small rooms or large rooms," said Josh Leppek, General Manager of a Lansing Menards. "It's a supplementary heat, as opposed to running your furnace or pellet stove, wood stove."



And walking through the aisles of Menards, it's easy to believe there is a space heater for everyone. They come in all shapes, sizes and strengths.



The heaters can warm an area ranging from a small office to the first floor of a home, Leppek said. The trick can be finding the right heater for you.



"First we would ask what size of area they're looking to heat and then go from there," said Leppek. "A lot of the information is on the box and we can always help qualify people from there."



Most modern heaters have a feature where they automatically turn off when tipped over.



But space heaters, if used incorrectly, can be dangerous. According to the U.S. Consumer Public Safety Commission, space heaters cause 25,000 fires a year, resulting in 6,000 injuries and 300 deaths.



"You've gotta make sure you have the right one for your house," said Brian Ball, chief of the Delhi Twp. Fire Department. "Bigger isn't always better. You want one that is going to heat your house but let's not go overboard."



Ball says the "lion's share" of fires in Delhi are caused by the use -- or misuse -- of space heaters.



He says it's important to turn off your space heater when you leave or before you go to bed. And when the heater is on, it's important to leave space between it and any other objects in the room.



"We've gotta make sure we have a three-foot area around and that is not only for the combustible stuff, but also a safety area for kids," said Ball. "We don't want kids to get too close and get burned by a space heater either."



Here are some other tips from local fire departments:



Plug your heater directly into an outlet, not into an extension cord



Look for cracked, frayed or broken plugs or loose connections. Replace before using.



Have your chimney cleaned by a licensed, professional chimney sweep



Keep a safety screen on your fireplace at all times



Check your smoke detectors and carbon monoxide detectors



Have a safety escape plan



Source: http://www.jrn.com/fox47news/news/What-You-Need-to-Know-About-Space-Heaters-287780181.html



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from energyhouse http://energyhouse.livejournal.com/36607.html

Wednesday, January 7, 2015

Top notch! CRANE transformed into luxury hotel with hot tub and rotating suites

Crane-hotel-Amsterdam-418746



You'll have to crane your neck to catch sight of this quirky hotel's penthouse suite, which is built it into one of the world's oldest and tallest mechanical structures.



The luxury crane hotel in Amsterdam features three plush hotel suites a hot tub with breathtaking views, for holiday makers who like to get high on vacation.



The towering 50-metre structure located in the famous Dutch city offers luxury accommodation for the more adventurous traveller.

Crane-hotel-Amsterdam-182999



It is built in one of the world's oldest and highest cranes that was doomed for decay after being branded 'impossible' to develop.



But an ambitious developer has transformed it into a haven of tranquillity and just three years later, the crane is hosting elite guests for its swanky rotating suites decked out by a top team of interior designers and its panoramic-view pool, now called The hotel Faralda in Amsterdam.



The 250-ton crane, rising from the ground at the hip NDSM site on the River Ij's banks, was saved despite the creation of the hotel being dismissed as 'technically impossible', according to its spokesman Edwin Kornmann Rudi.



Mr Rudi said: "But after years of preparation there was a point of no return. Nowhere else in the world is there something as unique, as big and high as this hotel.



"This has put an end to the fight against the decline of the historic harbour crane.



"The Grand Dame has finally reached her destination as the most extravagant Crane Hotel in the world.



"It is also the most talked about wedding location in the Netherlands. We've had people getting married in the studio, sleeping in one of the three suites and having their wedding night start in the hot tub at the top of the crane."



Alongside deluxe dining and sumptuous suites, the steel colossus also boasts a private business club where internationally oriented companies and stakeholders to use the crane for all sorts of sessions.



The suites are the most expensive in the Netherlands after developers splurged £660,000 building EACH room, setting customers back by £340 each.



The crane also boasts a TV studio which is used for high-profile television and music productions, measuring 15-square metres and hosting guests for fancy corporate parties.



The engineering marvel was constructed by hundreds of companies and manufacturers in the Dutch city making a joint effort to turn scrap metal into Savoy-style suites.



Architects say the crane still moves in the wind and is fitted with a thrust bearing made of gold - which allows the suites to rotate.



New foundations were built to withstand the weight of the beast-like structure after the quay of the old wharf was not strong enough.



So if you fancy a holiday that is top notch why not chill out in a plush room in the sky.



Source: http://www.dailystar.co.uk/travel/adventure/418746/Crane-hotel-Amsterdam-quirky-unusual



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from energyhouse http://energyhouse.livejournal.com/36198.html

Tuesday, December 30, 2014

Thursday, December 25, 2014

Merry Christmas!

funny-santa-whose-idea-was-to-invite





from energyhouse http://energyhouse.livejournal.com/35665.html

Thursday, December 18, 2014

Pellet stove savings will warm your heart

photo



Chris Morris paid $2,800 for her pellet stove, seen here in the great room.



WINDHAM, NH. — I have three babies. Two of them are children. One of them is a pellet stove. I love them all.



And while I probably would not throw myself in front of a train to save my pellet stove, I do feed it, clean it, and tend to it as if it were my offspring. And in return, it fills me with a warm feeling, just like my actual offspring do.



Having a pellet stove is a labor of love, much like parenting. And the effort is oh-so worth it.



She puts a 40-pound bag of pellets into the hopper at night and another in the morning.

CHRIS MORRIS/GLOBE STAFF



Morris puts a 40-pound bag of pellets into the hopper at night and another in the morning.



Here’s why: Until three years ago, we were spending scary amounts of money to heat our 1860s farmhouse. The oil-burning furnace would be running, but we were still having to bundle up. Fleece became a second skin. That’s because if we set the thermostat above 62 degrees, the 250-gallon oil tank would run dry in less than a month. Most years, it was costing us $850-$900 a month to be cold — not to mention broke. Our windows aren’t old and drafty, the house is. And after adding more insulation wherever we could, and doing all manner of boiler maintenance, we came to the realization that nothing was going to make this great old 2,800-square-foot house we love so much feel tight, at least not without a major renovation and an overhaul of our heating system. And those things just weren’t in the cards.




Morris puts a 40-pound bag of pellets into the hopper at night and another in the morning.



We knew we needed to do something. We couldn’t afford not to. So after doing some pretty extensive research, we decided to invest in a pellet stove. It was one of the wisest decisions we’ve made as homeowners. The benefits are great and many, and apparently, we aren’t the only ones who have figured that out.



Jessica Boothe, director of research at the Hearth, Patio & Barbecue Association , which tracks shipments of stoves, tells me that in part because of last year’s very long and cold winter, her agency is seeing a 9 percent increase in all hearth shipments in the United States over this time last year, including more than 45,000 pellet stoves. That’s a whopping 80 percent increase in pellet stove shipments over 2013. And many of them are headed to the Northeast.



It’s not hard to understand why. A 40-pound bag of pellets in our corner of southern New Hampshire sells for between $4.75 and $8, depending on whether we’re picking it up at a home improvement warehouse or at the cool grain-and-feed shop in the next town over. On the coldest days of winter, we go through one and a half to two bags of pellets, so we’re heating the house for about $10 per day. Compare that with the days we were paying $900 per month for oil. That’s $30 a day. We still use oil for our hot water and to heat a bedroom, bathroom, and hallway that are out of the stove’s reach, but we are now able to make a tank last two months in the coldest part of the winter. Running the stove has added about $20 to our electric bill, in part because it uses electricity and because we keep an overhead fan going to circulate the warm air.



The initial investment was significant. We paid about $2,800 for our stove, which we picked for many reasons. For one, its heating capacity is 2,500 square feet. That’s the largest we found. The reviews were favorable, and we were wooed by the look of its “sleek European design.” It has a big hopper — capable of holding 70 pounds of pellets — and the stove was available as an insert, meaning we could use it in our existing fireplace and not as a freestanding unit we’d have to vent outside. We also paid $750 to have it assembled and installed, but this is our third winter with our stove, and it is well on its way to paying for itself.



Another for the pro column: It’s green. Pellets are made of wood, a renewable source, and have high combustion and heating efficiencies, which means they produce very little air pollution. In fact, the Environmental Protection Agency says they are the cleanest of any residential heating appliances that burn solid fuel. The pellets are generally made of sawdust from lumberyards and sawmills, or the unused tops of trees that are cut down for logging, so they’re a recycled and reclaimed product. Not only are we feeling toasty now, we can also toast our environmental do-goodism.



Speaking of toasty, pellet stoves give off “a nice heat” — a phrase I never understood or used, for that matter, until we installed our stove. It does feel nice. It’s comfortable, not dry like wood stove and fireplace heat can sometimes feel.



Here’s another plus: There’s little hassle. We have a woodstove in the living room — which we don’t use as much as the great room, where the pellet stove is — and, while we like to run it when we’re home on the weekends, it’s a lot of work. There’s the lugging in of wood, emptying out the ash pan, getting the fire going and keeping it going, restocking the wood, stacking the wood, and so on. With the pellet stove, there’s less maintenance. When it’s very cold out and we are running the stove at a level 4 out of 5, we empty one 40-pound bag of pellets into the hopper at night and another in the morning. Once or twice a week, we shut down the stove for a couple of hours to let it cool, vacuum out the ash, and start the stove up again. That’s it. We don’t even need a fancy ash vacuum. A wet/dry vac works just fine. And while the amount of creosote buildup in a pellet stove is minimal, it is still widely recommended that a professional inspect and, if necessary, clean your stove and flue (if you use one to vent your stove) annually.



Downsides? From where I stand, all warm and happy by the pellet stove, I can’t see that there are many disadvantages. But there are some obstacles.



Personally, I found it hard to get used to leaving the house with a fire going. As someone who gets panicky about whether the iron was left on, I had a hard time believing the installer who told me that if anything malfunctioned, the stove’s circuit board would automatically shut it off, and the fire would die out almost immediately. Set it at 2 or 3 when you are going out, he said, and everything will be fine when you get back. Turns out he was right.



Another con? Those 40 pound bags. They’re about the size of mulch bags, but they feel heavier. I’m used to lifting heavy objects (Remember my pellet stove’s siblings?), so hoisting and stacking the bags doesn’t bother me, but I might feel differently when I’m 80. Until one gets a system down, pouring the pellets into the hopper can be tricky and awkward.



There’s also the matter of finding a place to store pellets. They need to be kept in a dry place. We’re lucky enough to have room in our garage, but storage might be a problem for others.



Perhaps the most worrisome issue for pellet stove owners is supply. As last winter dragged on, and as more people installed pellet stoves in their homes, finding bags of pellets anywhere became difficult, if not impossible. The shortage was all over the news, and my husband was among hundreds of customers that stalked the big trucks hauling pellets from Canada.



David Nydam, CEO of woodpellets.com , based in Bedford, N.H., said the shortage was caused by a number of factors. “Typically, many suppliers stop carrying pellets come late winter, early spring,” but last year, the winter dragged on, and people who thought they had what they needed for pellets realized they needed more.



And on top of that, US suppliers are shipping more and more pellets overseas. Wood pellet exports from the United States nearly doubled last year, according to the US Energy Information Administration . More than 98 percent of the exports were sent to Europe, where pellet fuel is a popular choice.



Bob LaFlamme, who owns Crowley Fuel in North Brookfield, Mass., and who writes a blog called “Fuel for Thought ,” said supply remains an issue this year because “there’s concern there will be another long, cold winter.” People are stocking up.



LaFlamme’s business is heating oil and wood pellets, but he’s been selling pellets for only a few years. In that time, he’s seen pellet use rise steadily. “It used to be 5 percent pellets. Now 20 percent of our business is pellets. And it easily could have been 30 to 40 percent pellets last year” if he had the supply to sell.



The good news is oil costs are down so far this winter, so people might be feeling less pressure to scarf up all available pellets. And, according to Jennifer Hedrick, executive director of the Pellet Fuels Institute in Arlington, Va., efforts are underway to avoid a repeat of what LaFlamme dubbed “The Great Wood Pellet Shortage of 2014.”



“We have companies in the West that are helping in the effort to meet market demand in the Northeast,” Hedrick said.



Thank you, friends in the West. Your help means we will be able to continue to feed our big steel baby this winter, keep our other babies warm, and have some money left for Christmas presents — which will be opened in a warm house. Now that’s worth a toast.



Source: http://www.bostonglobe.com/lifestyle/real-estate/2014/12/14/pellet-stoves-hunks-burnin-love/Kwi9JVJoPIBbonScoRSXpO/story.html



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