TURNING THINGS AROUND Having been upstaged by less-fancied 139th-ranked Central Americans Nicaragua inside the National Stadium last Friday night, Jamaica’s head coach, Winfried Schäfer, has issued a call for his charges to lift their game, show mettle and just why they were CONCACF Gold Cup finalists. The 52nd-ranked Reggae Boyz were humbled in a shock 3-2 loss to the visitors in their first-leg CONCACAF World Cup 2018 Qualifier. The result means they have to go into tomorrow’s return leg ruthless, and to win by at least two goals to progress in their World Cup Qualification bid for Russia 2018. “When you play against Nicaragua, you have to play with accuracy and you have to play well. When number one (Jamaica, who went in the game as favourites) play against the second-place team, we have to play with direct accuracy,” said Schäfer. “You can’t win unless you improve on our game; that was how we beat the USA in the Gold Cup semi-finals. We were the underdog and we won the match,” he recalled at Friday’s post-match press conference. While dismissing assertions that his team might have underestimated Nicaragua, or went in the game a bit complacent, Schäfer notes that the Reggae Boyz will be looking to turn things around. “For the second leg, we can’t start this way. We have to press for the ball, and we have to go to Nicaragua with the motivation to win,” Schäfer stressed. “We have to concentrate; we have to believe we can change the match. I believe it,”Schäfer assured, ahead of Tuesday’s do-or-die game in Nicaragua. The must-win encounter will take place at the Estadio Nacional in Managua. Match time is 8:30 p.m. The Jamaica Football Federation (JFF) reminds the public that it has organised a charter leaving Jamaica at 1 p.m. on match day tomorrow, travelling to Managua, Nicaragua. Persons interested can call the offices of the JFF at any time at (876) 92-61182. The cost is US$650 and covers air fare, ground transportation, taxes and match fee. The flight returns on Wednesday, September 9, at 7 a.m.
Tom Brady most dominant player in AFC championship history “I feel like we’re on 8. By the time we play, we should be around close to 9 or something,” Guiao told reporters on the eve of their departure for Qatar, where they take their first shot at staying alive for a World Cup berth.The Philippines trails Japan by a game for third place in their group after losing four of its last five qualifying matches. Only the top three teams of each group get outright berths to this year’s tournament.FEATURED STORIESSPORTSGolden State Warriors sign Lee to multiyear contract, bring back ChrissSPORTSCoronation night?SPORTSThirdy Ravena gets offers from Asia, Australian ball clubs“At least even without Andray, we’ve seen that the guys are blending well,” he said. “We played good defense today. We’re hoping we can still improve our defense and be able to translate or apply the things that we’ve practiced against Qatar and Kazakhstan.”RR Pogoy led Gilas with 21 points. He will miss the Qatar game, a penalty for his role in the Philippines-Australia brawl in July last year. In fight vs corruption, Duterte now points to Ayala, MVP companies as ‘big fish’ MOST READ Will you be the first P16 Billion Powerball jackpot winner from the Philippines? Trending Articles PLAY LIST 00:50Trending Articles00:50Trending Articles01:14Alyssa Valdez stays positive despite PH loss in volleyball opener02:14Carpio hits red carpet treatment for China Coast Guard02:56NCRPO pledges to donate P3.5 million to victims of Taal eruption00:56Heavy rain brings some relief in Australia02:37Calm moments allow Taal folks some respite03:23Negosyo sa Tagaytay City, bagsak sa pag-aalboroto ng Bulkang Taal01:13Christian Standhardinger wins PBA Best Player award “They’ll be playing in their home court; they’ll be more familiar with their surroundings,” he said. “But the positive thing is we all know that there are lots of Filipinos in the Middle East—in Qatar. So we’re hoping they’ll come and cheer for us, that they’ll back us up, and that they’ll give us some of their energy.”Three days after the Qatar match, the Philippines will fly to cold Kazakhstan for their last qualifier assignment at Saryarka Velodrome.Practice continues to be a challenge for Guiao, who has yet to muster a full squad during preparations.“I don’t think we can be really at a hundred percent since we had a short period of preparation time. But if we make 90 percent, we’ll be OK—and that’s good enough for us to win games.”“I’m confident, I’m happy with this group of guys. They’ve shown their commitment; they’ve shown their abilities,” Guiao added.Sports Related Videospowered by AdSparcRead Next View comments Philippine Army to acquire MANPADS, self-propelled howitzers Don’t miss out on the latest news and information. Ginebra beats Meralco again to capture PBA Governors’ Cup title LATEST STORIES Marcio Lassiter, June Mar Fajardo and Troy Rosario, who chimed in with 14, 13 and 10 respectively, are part of the 14-man pool that Guiao will trim in Qatar.“We’ll be leaving with 13 guys—including Thirdy [Ravena]. Andray’s the 14th guy,” Guiao said. “RR still can’t play in the first game so we still have to determine one more guy who will sit out.”Blatche will join Gilas Pilipinas in Qatar and despite having little practice time with the squad, the former NBA standout will make the final cut, with Guiao liking what he has seen in terms of the big man’s fitness.“I’m happy with the development with Andray Blatche. He came in and he was in a lot better shape than he was when he first came in [last time]. So that’s really the best sign, I think, for us—he’s game ready,” he said.The Filipinos take on the Qataris first on Feb. 21 at Al Gharafa Sports Club Multipurpose Hall, where Guiao hopes a big population of OFWs will dull the hosts’ home-court edge.ADVERTISEMENT Ginebra beats Meralco again to capture PBA Governors’ Cup title Japeth Aguilar wins 1st PBA Finals MVP award for Ginebra Gretchen Barretto’s daughter Dominique graduates magna cum laude from California college League teaches players how to play game of life Nadine Lustre’s phone stolen in Brazil June Mar Fajardo (left) and Andray Blatche are expected to make the final cut. —DENISON REY A. DALUPANGWith the national team facing tough odds in the Fiba World Cup Asian qualifiers, coach Yeng Guiao is trying to hang on to every bit of positivity before flying off to two crucial games that will determine if the Philippines will be in the China tournament or not.Andray Blatche is more fit. The team is getting glued defensively. The Nationals won their final scrimmage before leaving, a 100-82 dismantling of PBA squad Meralco.ADVERTISEMENT
For Part Two of this Green Architects’ Lounge episode, we are joined once again by our good friend Pat Coon, from Revision Heat, to discuss the topic of biomass boilers. In the second installment of this epic trilogy, Phil, Pat, and I wrap up our discussion of log gasification boilers and introduce our listeners to the concept of wood pellet boilers. If you missed Part One, you might want to give that a listen first, especially since it gives you the recipe for the perfect red Manhattan (which goes very well with this smoky topic).In Part Two of the podcast, we discuss:Thermal storage for log boilers.Distribution. It’s a boiler and can do anything a normal boiler can.Maintenance. What’s involved for upkeep?Pellet boilers. Why consider pellet boilers? No more hauling wood.Pellets as fuel.Maintenance.How automated can they be?Fuel delivery, by the bag or by the truckload.Dust control and your pellet hopper.The quality of fuel and its output.Stay tuned for Part Three, where we talk about cost and savings, Phil’s six-digit idea, and this episode’s song selection, “Daydreamer,” by Pete Miller. RELATED ARTICLES Should Green Homes Burn Wood?Comparing Fuel CostsUnderstanding Pellet StovesHeating a Tight, Well-Insulated HouseEquipment Versus EnvelopeGreen Heating Options GREEN PRODUCT GUIDE PODCAST: Biomass Boilers: Part 1PODCAST: Why Does Green Building Matter? (Part 2) RELATED MULTIMEDIA Multi-Fuel and Wood BoilersMulti-Fuel Pellet BoilersOFFICIAL TRANSCRIPTPhil Kaplan: So, let’s talk about crunchy green versus sexy green.Chris Briley: Well, I’ve said this before. The threshold test is, if you ask, “Well, how do you feel about composting toilets?” And if they actually are interested in hearing what you have to say about it, then you’ve got yourself a crunchy green right there. That’s a crunchy green person. But if they’re like, “Uh, well, hey, I was, uh…” then you know what they are.Pat Coon: Here’s what we do in our showroom. We have two doors side by side. We’ll both go into the bathroom. We’ll say, “On the left is a composting toilet, and on the right is a flush toilet.” And we’ll see where they go. Then we know what we’re going to sell them. Whip out the solar hot water literature!Chris: So, what do we talk about cost?Pat: Let me back up just a minute. Not all wood boilers need thermal storage tanks. If you don’t have a thermal storage tank, you’re really running your wood boiler between November and March. You’re not running it in the shoulder seasons; you’re not running it in summer.Chris: Am I running something else?Pat: Well, your backup system. Some clients have a woodstove that runs in the shoulder seasons.Phil: So, are you saying you might not need a backup system?Pat: You know, you always need a backup system. It’s prudent, and the insurance companies and the banks will want it—because you’re going to want to go away for a week and not worry about the house freezing.Chris: And it doesn’t have to be extreme or robust, just something that’s going to save you…Pat: Yeah, the one we just finished for the mechanical room had an electric boiler. Why spend all that money—just a cheap electric boiler that’s there for that one week when they go away. So, if you don’t have a thermal storage tank, it costs a whole lot less.Chris: Because it’s cycling on and off more?Pat: Well, there’s less equipment. But it’s a little less efficient. You’re also tending it every three hours irregardless; you’re not going down once a day and filling it. You’re playing with it more; it’s a more active experience.Phil: My question is: distribution. Tell us a little bit about that.Pat: Any type of distribution works fine.Chris: Really? But it’s coming off as water, right? So, you’re doing water to air, or water to hydronic, in some way.Pat: Yeah. There has never been a distribution system that we couldn’t attach to, so if you’ve got forced air, we can put a coil in a forced air system. If you’ve got baseboard, we can do that. Radiant floors actually work really well, because they let you pull the tank down further and empty the tank. Distribution is not an issue. The only time it can be a problem is if the house is really under-distributed. You really want to be able to run 150-degree water.Chris: About the lower tank, that brings up maintenance. What kind of maintenance is one expecting, because these things are heavy. They go in the basement; they don’t go in the third-floor attic or anything like that.Phil: They’re really robust. On the tank, with a thermal storage tank, once a year you check the pH and the water level—you have to add 20 to 30 gallons of water. So, once a year you do that. Of course, you have to clean them, and different boilers can be cleaned in different ways. They’re easy or hard to clean. Once a cord of wood, you have to open it up and scrub it out. The new, fancy ones you clean by shaking a lever. The older ones, you have to open some wing nuts; it takes about 10 minutes. Feeding them and cleaning them are small tasks.Chris: So, now let’s shift the conversation. We’ve talked about logs as a fuel source. Pat, what if I don’t want to schlep the logs? I love everything you just said. I love the renewability of wood, but I don’t want to schlep the logs. Isn’t there a way, Pat…?Pat: Well, it’s funny you should mention it. Have you ever considered a wood pellet boiler?Chris: You mean the little thing that’s like a woodstove?Pat: Yes, they have pellet boilers—down in the basement, central, hydronic, automated systems.Chris: But then I have to schlep all the pellets, don’t I?Pat: Not anymore. Wood pellets are nothing more than sawdust, which is passed through an extruder—a big drum with holes on the outside that crushes the sawdust and pushes it through the holes. And the lignan in the wood gets squirted out of the cells; that’s what gives it a sheen and holds it together.Chris: So, can you do that with leaves? Just kidding.Phil: So that’s what the sheen is from? I wondered if they were polishing those things.Pat: Everyone thinks they put a little petroleum on them to hold them together, but no, that’s just the lignan from the wood. So, the whole idea of pellets—why would you do this? One is, when you make the wood into sawdust, you can dry it really easily. For cordwood, nice, dry firewood has 20% moisture content. For pellets, it’s down to around 7%. So you can get a lot of the moisture out, and that makes it burn more efficiently on site and makes it easier to transport. When you “densify” it—when you squish it back together again—you can ship it more easily because now it’s much smaller: about half the volume of cordwood.Chris: It’s also a gasification process, is it not? For firing the pellets?Pat: What gasification did was have multiple zones. For most pellet boilers, they don’t have separate combustion chambers; usually there’s one chamber with a combustion zone and a secondary combustion zone, and a heat extraction chamber. So, usually they’re two-chamber boilers as opposed to three, but they still do the same thing. They get up to really high temperatures, they get all the energy out of the wood and suck it all out.Chris: So, will it yield the same kind of exhaust as a gasification boiler, or will it be slightly more…Pat: A little cleaner, fewer particulates, higher—a really good wood boiler has about the same thermal efficiency as a really good pellet boiler. But it’s easier to get good efficiencies out of a pellet boiler than a wood boiler. The other thing about the fuel is that it’s uniform, so it’s easy to design an augur system to transport it because it’s only going to be so fat, or so long; it’s going to have certain properties that are knowable.Phil: Speak a little bit about the augur system. You don’t open this up and dump shovelfuls of this in and light it in the same way.Pat: Well, you can. This is an important thing to know about pellet boilers. There’s a huge range of how automated the boilers are. When you think about what a boiler does, it can transport the fuel or not, it can ignite itself or not, and it can clean itself or not. Some boilers have all these things automated…—oh, and it can de-ash itself or not. The completely automated boilers have a truck that pneumatically blows pellets into a bin, and then the boiler pulls pellets out of the bin, either through an augur or a vacuum system. They all combust the pellets, but some of the boilers will turn themselves on and off; others, you do that manually. Some of the boilers clean themselves; others, you do it manually. And some pull the ashes right outside.Phil: My guess is the market for the pellet boilers is what you said: The people who say, “I like the idea, but it’s a little too much work.” The pellet boilers people are most interested in, I imagine, are the ones that do most of this work for you—but still, you get the advantage of wood.Pat: These are relatively new on the market, so we don’t have enough of a record to know which way they’re going to go. Coming up in the marketplace we have a boiler that is bulk-fed, so you don’t have to carry pellets into your basement; those are blown into a hopper in the basement. They’re transported from the hopper to the boiler automatically. Once a week, or once every other week, you’ll go down to the boiler and shake a little lever. It’ll take two minutes—actually, it will take five seconds. There’s a mechanism inside; you’re knocking the ash down. And once a month, maybe six weeks, you have to open the boiler and pull the ash out. That boiler costs about $7,000 less than a boiler that does those two things for you. So, that’s where I think the market is. Yeah, you can have it completely automated, and some people will want to. Or you can have a little bit of interaction, and save a bunch of money. For the last eight years we’ve been selling a really nice boiler that you have to bag feed, you have to de-ash, and you have to clean—and guess what, we didn’t sell that many of those.Phil: Let’s cover all the things we did with a wood boiler, because I want to see these things side by side. What does it look like? So, you’ve added a hopper but you’ve gotten rid of the actual cord of wood sitting in my basement.Pat: It doesn’t look that much bigger than an oil boiler—it’s a little bigger…Phil: The hopper is.Pat: No, the boiler itself. You want to size the hopper for no more than four deliveries a year. A ton of pellets is 40 lb. per cubic foot. About 4 by 4 by 5 is what a ton is. So, a house that burns 900 gallons of oil would burn 8 tons of pellets. You wouldn’t want a hopper less than 2 tons; you’d probably want it closer to 4 tons.Chris: And you’d get a couple of refills throughout the year. A truck drives up, takes out a hose much like an oil hose only much thicker—static lined so it doesn’t ignite any dust—hooks it up to a big fitting on your house, and then he just turns it on and blows pellets into the hopper. Does it whistle?Pat: No, it hums.Phil: How about noise?Pat: Of the boilers? They’re much quieter than oil boilers. The fans are much more gentle.Chris: How about dust? I’ve got this hopper, and the truck is going to blow sawdusty pellets into my basement. It’s very similar to coal; only instead of open air, it’s contained, right?Pat: There’s all different kinds of hoppers. We’ve used metal hoppers, we’ve used plywood hoppers built on site, we’ve used cloth hoppers. We’ve designed a couple of hopper rooms, which have an augur on the bottom. Cloth hoppers are cool because they’re designed for the purpose and you only need one hose; you blow the pellets in, and the hopper lets air out, but not dust. Like a vacuum bag.Phil: Does this have to sit in conditioned space?Pat: No. We’ve just designed our first two silo systems, and they sit outside. We get our silos from agriculture supply houses.Phil: I see an architectural opportunity here.Pat: We were talking about that for one of the jobs. I said, “We can build this building and make one of those silo rooms. It’s going to be really expensive, and you’ll have to build a building for it. Or you can just buy a hopper. 7,000 bucks and you’re done.” And they were like, “We don’t like the way it looks.”Chris: Hire an architect, and we’ll make it look great!Pat: Well, I suggested they tape pine needles to it. A lot of glue…Chris: Like I said, hire an architect…Phil: Pine needles?Pat: Well, it was in the woods, to kind of blend in a little bit…Chris: Should the boiler be in conditioned space?Pat: We haven’t done a ton of these. We’ve done about two dozen of the old-school types and five of the fully automated types. So, we’ve designed our first direct heating system with the hopper outside and the boiler in a room all by itself. And it’ll be anti-freezed, and it’ll pipe heat underground. Most boilers can have anti-freeze in them; it depends on the heat exchanger. Modulating and condensing gas boilers don’t want to have too rich a mixture of antifreeze.Chris: Is the quality of fuel with pellets a consistent thing?Pat: The way to think about it is, it’s not the quality of the fuel, but a combination of the quality of the fuel and the appliance that’s burning it. The issues are going to be: Bad fuel creates a lot of ash; and pellets have a lot of minerals in them with a low melting point and can form clinkers, so the ash solidifies. They look like lunar rocks; they’re crazy. If you’re boiler is able to deal with those, it really doesn’t matter. It’s tricky, because I can only look at technology and ask myself how this is going to do for a decade…Chris: Because there’s no one you can call, because you don’t speak German. Do you speak German?Pat: No, I don’t. I have a partner who speaks German.Voiceover: So that’s it for this part of the episode. Tune in next week for more of the Green Architects’ Lounge podcast. A quick reminder, our music is “Zelda’s Theme,” by Perez Prado. And our views and our drinking habits do not necessarily reflect Green Building Advisor. Thanks for tuning in, everyone, and keep up the good work.
From 1977 (when the Saskatchewan Conservation house was built) until 2004 (when the first U.S. Passivhaus was built), North American builders completed hundreds of superinsulated homes. In those days, anyone interested in rating the performance of these homes was probably interested in just one metric: annual energy use.Over the last eight years, however, with the increasing attention paid to the Passivhaus standard, some builders of superinsulated homes are walking along a narrower path. Any builder interested in achieving the Passivhaus standard soon learns that a low energy bill is no longer sufficient to gain accolades.This narrow Passivhaus path has several restrictions; I call them “unexamined Passivhaus postulates.” Like postulates in geometry, Passivhaus postulates need not be proven; they just are. Here are four of the postulates:These Passivhaus postulates are not equally binding; for example, North American designers have chosen to ignore the postulate that affirms that space heat should be delivered through ventilation ductwork. (Although the principle is widely ignored, it is still prominently featured on the Passipedia page that establishes the definition of a “passive house.”) When I interviewed Dr. Feist in December 2007, he used the same definition for a Passivhaus that is enshrined on Passipedia: “As long as you build a house in a way that you can use the heat-recovery ventilation system — a system that you need anyway for indoor air requirements — to provide the heat and cooling, it can be considered a Passivhaus.”Each of the four postulates listed above deserves to be examined more closely than it has up until now, because each of these postulates forces Passivhaus designers to follow a narrower path than the one followed by the North American designers of superinsulated homes who worked from 1977 to 2004.In this article, I’ll address one of the unexamined Passivhaus postulates: the one… Start Free Trial Already a member? Log in This article is only available to GBA Prime Members Sign up for a free trial and get instant access to this article as well as GBA’s complete library of premium articles and construction details.